Gamma-ray Burst 150219A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN NOTICE

TITLE:          GCN/INTEGRAL NOTICE
NOTICE_DATE:    Thu 19 Feb 15 12:31:23 UT
NOTICE_TYPE:    INTEGRAL Wakeup
TRIGGER_NUM:    6889,   Sub_Num: 0
GRB_RA:         271.2667d {+18h 05m 04s} (J2000),
                271.5354d {+18h 06m 08s} (current),
                270.3790d {+18h 01m 31s} (1950)
GRB_DEC:        -41.6031d {-41d 36' 10"} (J2000),
                -41.6010d {-41d 36' 03"} (current),
                -41.6071d {-41d 36' 24"} (1950)
GRB_ERROR:      3.27 [arcmin, radius, statistical only]
GRB_INTEN:      8.25 [sigma]
GRB_TIME:       45074.92 SOD {12:31:14.92} UT
GRB_DATE:       17072 TJD;    50 DOY;   15/02/19
SC_RA:          267.62 [deg] (J2000) 
SC_DEC:         -30.92 [deg] (J2000) 
SUN_POSTN:      332.60d {+22h 10m 24s}  -11.28d {-11d 16' 53"}
SUN_DIST:        61.01 [deg]   Sun_angle= 4.1 [hr] (West of Sun)
MOON_POSTN:     338.72d {+22h 34m 53s}   -5.94d {-05d 56' 17"}  
MOON_DIST:       69.08 [deg] 
GAL_COORDS:     350.94, -9.73 [deg] galactic lon,lat of the burst
ECL_COORDS:     271.00,-18.17 [deg] ecliptic lon,lat of the burst
COMMENTS:       INTEGRAL GRB Coordinates.
COMMENTS:       Time_Scale=10.0000 and Time_Error=10.0000.
COMMENTS:       Possibly real GRB event
COMMENTS:       
COMMENTS:        NOTE: This INTEGRAL event is temporally(2.0<100sec) coincident with the FERMI_GBM event (trignum=446041875).

GCN NOTICE

TITLE:          GCN/INTEGRAL NOTICE
NOTICE_DATE:    Thu 19 Feb 15 12:31:33 UT
NOTICE_TYPE:    INTEGRAL Refined
TRIGGER_NUM:    6889,   Sub_Num: 1
GRB_RA:         271.2579d {+18h 05m 02s} (J2000),
                271.5266d {+18h 06m 06s} (current),
                270.3702d {+18h 01m 29s} (1950)
GRB_DEC:        -41.6020d {-41d 36' 06"} (J2000),
                -41.6000d {-41d 36' 00"} (current),
                -41.6060d {-41d 36' 21"} (1950)
GRB_ERROR:      2.70 [arcmin, radius, statistical only]
GRB_INTEN:      16.67 [sigma]  
GRB_TIME:       45084.92 SOD {12:31:24.92} UT
GRB_DATE:       17072 TJD;    50 DOY;   15/02/19
SC_RA:          267.62 [deg] (J2000)
SC_DEC:         -30.92 [deg] (J2000)
SUN_POSTN:      332.60d {+22h 10m 24s}  -11.28d {-11d 16' 53"}
SUN_DIST:        61.01 [deg]   Sun_angle= 4.1 [hr] (West of Sun) 
MOON_POSTN:     338.72d {+22h 34m 54s}   -5.94d {-05d 56' 15"}
MOON_DIST:       69.09 [deg]   
GAL_COORDS:     350.93, -9.72 [deg] galactic lon,lat of the burst
ECL_COORDS:     270.99,-18.17 [deg] ecliptic lon,lat of the burst
COMMENTS:       INTEGRAL GRB Coordinates.
COMMENTS:       Time_Scale=10.0000 and Time_Error=10.0000.  
COMMENTS:       Possibly real GRB event
COMMENTS:
COMMENTS:        NOTE: This INTEGRAL event is temporally(12.0<100sec) coincident with the FERMI_GBM event (trignum=446041875).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 19 Feb 15 12:31:47 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      57
TRIGGER_NUM:     446041875
GRB_RA:          261.000d {+17h 24m 00s} (J2000),
                 261.293d {+17h 25m 10s} (current),
                 260.032d {+17h 20m 08s} (1950)
GRB_DEC:         -50.083d {-50d 04' 59"} (J2000),
                 -50.096d {-50d 05' 46"} (current),
                 -50.037d {-50d 02' 14"} (1950)
GRB_ERROR:       10.98 [deg radius, statistical plus systematic]
GRB_INTEN:       227 [cnts/sec]
DATA_SIGNIF:     13.10 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        17072 TJD;    50 DOY;   15/02/19
GRB_TIME:        45072.26 SOD {12:31:12.26} UT
GRB_PHI:         327.00 [deg]
GRB_THETA:       115.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      0.41
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      94%  GRB
2nd_MOST_LIKELY:   4%  Generic Transient
DETECTORS:       0,0,0, 0,1,1, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:       332.60d {+22h 10m 24s}  -11.28d {-11d 16' 53"}
SUN_DIST:         69.41 [deg]   Sun_angle= 4.8 [hr] (West of Sun)
MOON_POSTN:      338.73d {+22h 34m 54s}   -5.94d {-05d 56' 13"}
MOON_DIST:        77.40 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      339.89, -7.88 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      263.54,-26.85 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150219522/quicklook/glg_lc_medres34_bn150219522.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 29.98,-3.80 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the INTEGRAL event (trignum=6889).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 19 Feb 15 12:31:37 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      43
TRIGGER_NUM:     446041875
GRB_RA:          237.933d {+15h 51m 44s} (J2000),
                 238.236d {+15h 52m 57s} (current),
                 236.937d {+15h 47m 45s} (1950)
GRB_DEC:         -56.667d {-56d 40' 00"} (J2000),
                 -56.711d {-56d 42' 39"} (current),
                 -56.517d {-56d 31' 00"} (1950)
GRB_ERROR:       15.13 [deg radius, statistical plus systematic]
GRB_INTEN:       162 [cnts/sec]
DATA_SIGNIF:     6.80 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        17072 TJD;    50 DOY;   15/02/19
GRB_TIME:        45072.26 SOD {12:31:12.26} UT
GRB_PHI:         327.00 [deg]
GRB_THETA:       130.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      0.29
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      96%  GRB
2nd_MOST_LIKELY:   1%  Generic Transient
DETECTORS:       0,0,0, 0,1,1, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:       332.60d {+22h 10m 24s}  -11.28d {-11d 16' 53"}
SUN_DIST:         82.96 [deg]   Sun_angle= 6.3 [hr] (West of Sun)
MOON_POSTN:      338.73d {+22h 34m 54s}   -5.94d {-05d 56' 15"}
MOON_DIST:        90.74 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      325.84, -2.04 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      248.99,-35.54 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150219522/quicklook/glg_lc_medres34_bn150219522.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 29.98,-3.80 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the INTEGRAL event (trignum=6889).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 19 Feb 15 12:32:09 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      56
TRIGGER_NUM:     446041875
GRB_RA:          252.820d {+16h 51m 17s} (J2000),
                 253.107d {+16h 52m 26s} (current),
                 251.872d {+16h 47m 29s} (1950)
GRB_DEC:         -49.220d {-49d 13' 11"} (J2000),
                 -49.245d {-49d 14' 40"} (current),
                 -49.136d {-49d 08' 07"} (1950)
GRB_ERROR:       4.49 [deg radius, statistical only]
DATA_SIGNIF:     18.80 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        17072 TJD;    50 DOY;   15/02/19
GRB_TIME:        45072.26 SOD {12:31:12.26} UT
GRB_PHI:         323.00 [deg]
GRB_THETA:       119.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4153 (Gnd S/W Version number)
SUN_POSTN:       332.60d {+22h 10m 24s}  -11.28d {-11d 16' 52"}
SUN_DIST:         74.64 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:      338.73d {+22h 34m 55s}   -5.94d {-05d 56' 08"}
MOON_DIST:        82.65 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      337.42, -3.11 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      257.55,-26.52 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150219522/quicklook/glg_lc_medres34_bn150219522.gif
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the INTEGRAL event (trignum=6889).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 19 Feb 15 12:32:50 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      0
TRIGGER_NUM:     446041875
GRB_RA:          253.430d {+16h 53m 43s} (J2000),
                 253.720d {+16h 54m 53s} (current),
                 252.472d {+16h 49m 53s} (1950)
GRB_DEC:         -50.040d {-50d 02' 23"} (J2000),
                 -50.064d {-50d 03' 49"} (current),
                 -49.958d {-49d 57' 29"} (1950)
GRB_ERROR:       4.01 [deg radius, statistical only]
DATA_SIGNIF:     21.50 [sigma]
DATA_INTERVAL:   6.144 [sec]
GRB_DATE:        17072 TJD;    50 DOY;   15/02/19
GRB_TIME:        45072.26 SOD {12:31:12.26} UT
GRB_PHI:         324.00 [deg]
GRB_THETA:       119.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:       332.60d {+22h 10m 25s}  -11.28d {-11d 16' 52"}
SUN_DIST:         74.25 [deg]   Sun_angle= 5.3 [hr] (West of Sun)
MOON_POSTN:      338.74d {+22h 34m 57s}   -5.93d {-05d 56' 01"}
MOON_DIST:        82.26 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      337.04, -3.94 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      258.11,-27.28 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150219522/quicklook/glg_lc_medres34_bn150219522.gif
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the INTEGRAL event (trignum=6889).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 19 Feb 15 12:33:08 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      1
TRIGGER_NUM:     446041875
GRB_RA:          258.680d {+17h 14m 43s} (J2000),
                 258.965d {+17h 15m 52s} (current),
                 257.739d {+17h 10m 57s} (1950)
GRB_DEC:         -47.850d {-47d 51' 00"} (J2000),
                 -47.866d {-47d 51' 58"} (current),
                 -47.793d {-47d 47' 34"} (1950)
GRB_ERROR:       3.23 [deg radius, statistical only]
DATA_SIGNIF:     24.90 [sigma]
DATA_INTERVAL:   10.240 [sec]
GRB_DATE:        17072 TJD;    50 DOY;   15/02/19
GRB_TIME:        45072.26 SOD {12:31:12.26} UT
GRB_PHI:         324.00 [deg]
GRB_THETA:       115.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:       332.60d {+22h 10m 25s}  -11.28d {-11d 16' 51"}
SUN_DIST:         70.71 [deg]   Sun_angle= 4.9 [hr] (West of Sun)
MOON_POSTN:      338.74d {+22h 34m 58s}   -5.93d {-05d 55' 57"}
MOON_DIST:        78.75 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      340.88, -5.36 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      261.66,-24.74 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150219522/quicklook/glg_lc_medres34_bn150219522.gif
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the INTEGRAL event (trignum=6889).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 19 Feb 15 12:33:33 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      3
TRIGGER_NUM:     446041875
GRB_RA:          263.220d {+17h 32m 53s} (J2000),
                 263.503d {+17h 34m 01s} (current),
                 262.287d {+17h 29m 09s} (1950)
GRB_DEC:         -46.660d {-46d 39' 35"} (J2000),
                 -46.670d {-46d 40' 10"} (current),
                 -46.625d {-46d 37' 29"} (1950)
GRB_ERROR:       2.82 [deg radius, statistical only]
DATA_SIGNIF:     33.00 [sigma]
DATA_INTERVAL:   20.480 [sec]
GRB_DATE:        17072 TJD;    50 DOY;   15/02/19
GRB_TIME:        45072.26 SOD {12:31:12.26} UT
GRB_PHI:         325.00 [deg]
GRB_THETA:       112.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:       332.60d {+22h 10m 25s}  -11.28d {-11d 16' 51"}
SUN_DIST:         67.52 [deg]   Sun_angle= 4.6 [hr] (West of Sun)
MOON_POSTN:      338.74d {+22h 34m 59s}   -5.93d {-05d 55' 52"}
MOON_DIST:        75.58 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      343.60, -7.26 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      264.94,-23.34 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150219522/quicklook/glg_lc_medres34_bn150219522.gif
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the INTEGRAL event (trignum=6889).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 19 Feb 15 12:33:53 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      2
TRIGGER_NUM:     446041875
GRB_RA:          261.180d {+17h 24m 43s} (J2000),
                 261.462d {+17h 25m 51s} (current),
                 260.249d {+17h 21m 00s} (1950)
GRB_DEC:         -46.610d {-46d 36' 35"} (J2000),
                 -46.623d {-46d 37' 21"} (current),
                 -46.565d {-46d 33' 53"} (1950)
GRB_ERROR:       2.55 [deg radius, statistical only]
DATA_SIGNIF:     31.10 [sigma]
DATA_INTERVAL:   15.360 [sec]
GRB_DATE:        17072 TJD;    50 DOY;   15/02/19
GRB_TIME:        45072.26 SOD {12:31:12.26} UT
GRB_PHI:         324.00 [deg]
GRB_THETA:       113.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:       332.60d {+22h 10m 25s}  -11.28d {-11d 16' 51"}
SUN_DIST:         68.91 [deg]   Sun_angle= 4.7 [hr] (West of Sun)
MOON_POSTN:      338.75d {+22h 35m 00s}   -5.93d {-05d 55' 48"}
MOON_DIST:        76.97 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      342.87, -6.06 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      263.41,-23.37 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn150219522/quicklook/glg_lc_medres34_bn150219522.gif
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the INTEGRAL event (trignum=6889).

GCN NOTICE

TITLE:          GCN/INTEGRAL NOTICE
NOTICE_DATE:    Thu 19 Feb 15 12:34:18 UT
NOTICE_TYPE:    INTEGRAL Refined
TRIGGER_NUM:    6889,   Sub_Num: 2
GRB_RA:         271.2640d {+18h 05m 03s} (J2000),
                271.5327d {+18h 06m 08s} (current),
                270.3763d {+18h 01m 30s} (1950)
GRB_DEC:        -41.6049d {-41d 36' 16"} (J2000),
                -41.6028d {-41d 36' 09"} (current),
                -41.6088d {-41d 36' 31"} (1950)
GRB_ERROR:      2.65 [arcmin, radius, statistical only]
GRB_INTEN:      19.33 [sigma]  
GRB_TIME:       45111.92 SOD {12:31:51.92} UT
GRB_DATE:       17072 TJD;    50 DOY;   15/02/19
SC_RA:          267.62 [deg] (J2000)
SC_DEC:         -30.92 [deg] (J2000)
SUN_POSTN:      332.60d {+22h 10m 25s}  -11.28d {-11d 16' 50"}
SUN_DIST:        61.01 [deg]   Sun_angle= 4.1 [hr] (West of Sun) 
MOON_POSTN:     338.75d {+22h 35m 01s}   -5.93d {-05d 55' 44"}
MOON_DIST:       69.11 [deg]   
GAL_COORDS:     350.93, -9.73 [deg] galactic lon,lat of the burst
ECL_COORDS:     270.99,-18.17 [deg] ecliptic lon,lat of the burst
COMMENTS:       INTEGRAL GRB Coordinates.
COMMENTS:       Time_Scale=40.0000 and Time_Error=40.0000.  
COMMENTS:       Possibly real GRB event
COMMENTS:
COMMENTS:        NOTE: This INTEGRAL event is temporally(39.0<100sec) coincident with the FERMI_GBM event (trignum=446041875).

GCN Circular #17476
S.Mereghetti (IASF-Milano), D.Gotz (CEA, Saclay), C.Ferrigno, E.Bozzo (ISDC, Versoix), and J.Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report:
a gamma ray burst lasting about 60 s has been detected by IBAS in the IBIS/ISGRI data at 12:31:14 UT of February 19
The refined coordinates (J2000) are:
```
R.A.= 271.2664  deg
DEC.=  -41.5849 deg
```
with an uncertainty of 2 arcmin (90% c.l.).
The burst had a peak flux of 1.4 counts/cm2/s (20-200 keV, 1-s integration time) and a fluence in the same energy range of about 4e-6 erg/cmq.
A plot of the light curve will be posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html
GCN Circular #17477
P. A. Evans (U. Leicester) reports on behalf of the Swift team:
Swift has initiated a ToO observation of the INTEGRAL GRB 150219A. Automated analysis of the XRT data will be presented online at http://www.swift.ac.uk/ToO_GRBs/00020483
Any uncatalogued X-ray sources detected in this analysis will be reported on this website and via GCN COUNTERPART notices. These are not necessarily related to the INTEGRAL event. Any X-ray source considered to be a probable afterglow candidate will be reported via a GCN Circular after manual consideration.
Details of the XRT automated analysis methods are detailed in Evans et al. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8).
This circular is an official product of the Swift-XRT team.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:45:06 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     631747,   Seg_Num: 0
GRB_RA:           94.2808d {+06h 17m 07.3s} (J2000),
                  94.4882d {+06h 17m 57.1s} (current),
                  93.5956d {+06h 14m 22.9s} (1950)
GRB_DEC:          +9.1369d {+09d 08' 12.8"} (J2000),
                  +9.1305d {+09d 07' 49.6"} (current),
                  +9.1560d {+09d 09' 21.6"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       80 [cnts]
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60266.27 SOD {16:44:26.27} UT,   122.6 [sec] since BAT Trigger Time
CENTROID_X:      275.12,  raw= 275  [pixels]
CENTROID_Y:      261.19,  raw= 261  [pixels]
ROLL:            262.42 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -86.29
GRB_POS_XRT_Z:   -71.12
IMAGE_URL:       sw00631747000msxps_rw.img
SUN_POSTN:       332.77d {+22h 11m 05s}  -11.22d {-11d 13' 07"}
SUN_DIST:        122.69 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.29d {+22h 45m 09s}   -5.12d {-05d 07' 13"}
MOON_DIST:       113.68 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.88, -3.36 [deg] galactic lon,lat of the burst
ECL_COORDS:       94.36,-14.24 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:45:19 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     631747,   Seg_Num: 0
GRB_RA:           94.2808d {+06h 17m 07.3s} (J2000),
                  94.4882d {+06h 17m 57.1s} (current),
                  93.5956d {+06h 14m 22.9s} (1950)
GRB_DEC:          +9.1369d {+09d 08' 12.8"} (J2000),
                  +9.1305d {+09d 07' 49.6"} (current),
                  +9.1560d {+09d 09' 21.6"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       80 [cnts]
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60266.27 SOD {16:44:26.27} UT,   122.6 [sec] since BAT Trigger Time
CENTROID_X:      275.12,  raw= 275  [pixels]
CENTROID_Y:      261.19,  raw= 261  [pixels]
ROLL:            262.42 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -86.29
GRB_POS_XRT_Z:   -71.12
IMAGE_URL:       sw00631747000msxps_rw.img
SUN_POSTN:       332.77d {+22h 11m 05s}  -11.22d {-11d 13' 07"}
SUN_DIST:        122.69 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.29d {+22h 45m 09s}   -5.12d {-05d 07' 10"}
MOON_DIST:       113.68 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.88, -3.36 [deg] galactic lon,lat of the burst
ECL_COORDS:       94.36,-14.24 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:47:29 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     631747,   Seg_Num: 0
POINT_RA:         94.304d {+06h 17m 13s} (J2000)
POINT_DEC:        +9.116d {+09d 06' 57"} (J2000)
POINT_ROLL:      262.424d
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60274.67 SOD {16:44:34.67} UT,   131.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.997
N_STARS:         190
X_OFFSET:        504 [pixels]
Y_OFFSET:        544 [pixels]
X_MAX:           1463 [pixels]
Y_MAX:           1503 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    8
SL_URL:          sw00631747000msufc0130.fits
SUN_POSTN:       332.77d {+22h 11m 05s}  -11.22d {-11d 13' 05"}
SUN_DIST:        122.70 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.31d {+22h 45m 15s}   -5.11d {-05d 06' 45"}
MOON_DIST:       113.68 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.91, -3.35 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       94.39,-14.26 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:47:57 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     631747,   Seg_Num: 0
POINT_RA:         94.304d {+06h 17m 13s} (J2000)
POINT_DEC:        +9.116d {+09d 06' 57"} (J2000)
POINT_ROLL:      262.424d
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60274.67 SOD {16:44:34.67} UT,   131.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.997
N_STARS:         190
X_OFFSET:        504 [pixels]
Y_OFFSET:        544 [pixels]
X_MAX:           1463 [pixels]
Y_MAX:           1503 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    8
SL_URL:          sw00631747000msufc0130.fits
SUN_POSTN:       332.77d {+22h 11m 05s}  -11.22d {-11d 13' 04"}
SUN_DIST:        122.70 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.32d {+22h 45m 16s}   -5.11d {-05d 06' 40"}
MOON_DIST:       113.67 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.91, -3.35 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       94.39,-14.26 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:49:11 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     631747,   Seg_Num: 0
POINT_RA:         94.304d {+06h 17m 13s} (J2000)
POINT_DEC:        +9.116d {+09d 06' 57"} (J2000)
ROLL:            262.424d
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60274.67 SOD {16:44:34.67} UT,   131.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     446057087
X_OFFSET:        1002 [pixels]
Y_OFFSET:        958 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1162
Y_GRB_POS:       1118
BINNING_INDEX:   1
IM_URL:          sw00631747000msuni0144.fits
SUN_POSTN:       332.77d {+22h 11m 06s}  -11.22d {-11d 13' 03"}
SUN_DIST:        122.70 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.33d {+22h 45m 19s}   -5.11d {-05d 06' 25"}
MOON_DIST:       113.66 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.91, -3.35 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       94.39,-14.26 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:49:16 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     631747,   Seg_Num: 0
POINT_RA:         94.304d {+06h 17m 13s} (J2000)
POINT_DEC:        +9.116d {+09d 06' 57"} (J2000)
ROLL:            262.424d
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60274.67 SOD {16:44:34.67} UT,   131.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     446057087
X_OFFSET:        1002 [pixels]
Y_OFFSET:        958 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1162
Y_GRB_POS:       1118
BINNING_INDEX:   1
IM_URL:          sw00631747000msuni0144.fits
SUN_POSTN:       332.77d {+22h 11m 06s}  -11.22d {-11d 13' 03"}
SUN_DIST:        122.70 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.33d {+22h 45m 19s}   -5.11d {-05d 06' 24"}
MOON_DIST:       113.66 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.91, -3.35 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       94.39,-14.26 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:54:03 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     631747,   Seg_Num: 0
POINT_RA:         94.303d {+06h 17m 13s} (J2000)
POINT_DEC:        +9.116d {+09d 06' 57"} (J2000)
POINT_ROLL:      262.422d
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60486.63 SOD {16:48:06.63} UT,   342.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.925
N_STARS:         190
X_OFFSET:        682 [pixels]
Y_OFFSET:        638 [pixels]
X_MAX:           1641 [pixels]
Y_MAX:           1597 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    4
SL_URL:          sw00631747000msufc0342.fits
SUN_POSTN:       332.78d {+22h 11m 06s}  -11.22d {-11d 12' 59"}
SUN_DIST:        122.70 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.38d {+22h 45m 30s}   -5.09d {-05d 05' 28"}
MOON_DIST:       113.61 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.91, -3.35 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       94.38,-14.26 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:54:25 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     631747,   Seg_Num: 0
POINT_RA:         94.303d {+06h 17m 13s} (J2000)
POINT_DEC:        +9.116d {+09d 06' 57"} (J2000)
POINT_ROLL:      262.422d
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60486.63 SOD {16:48:06.63} UT,   342.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.925
N_STARS:         190
X_OFFSET:        682 [pixels]
Y_OFFSET:        638 [pixels]
X_MAX:           1641 [pixels]
Y_MAX:           1597 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    4
SL_URL:          sw00631747000msufc0342.fits
SUN_POSTN:       332.78d {+22h 11m 06s}  -11.22d {-11d 12' 59"}
SUN_DIST:        122.70 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.38d {+22h 45m 31s}   -5.09d {-05d 05' 24"}
MOON_DIST:       113.60 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.91, -3.35 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       94.38,-14.26 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:55:40 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     631747,   Seg_Num: 0
POINT_RA:         94.303d {+06h 17m 13s} (J2000)
POINT_DEC:        +9.116d {+09d 06' 57"} (J2000)
ROLL:            262.422d
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60486.63 SOD {16:48:06.63} UT,   342.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     446057299
X_OFFSET:        1002 [pixels]
Y_OFFSET:        958 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1162
Y_GRB_POS:       1118
BINNING_INDEX:   1
IM_URL:          sw00631747000msuni0356.fits
SUN_POSTN:       332.78d {+22h 11m 07s}  -11.22d {-11d 12' 58"}
SUN_DIST:        122.70 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.39d {+22h 45m 34s}   -5.09d {-05d 05' 09"}
MOON_DIST:       113.59 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.91, -3.35 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       94.38,-14.26 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 19 Feb 15 16:55:44 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     631747,   Seg_Num: 0
POINT_RA:         94.303d {+06h 17m 13s} (J2000)
POINT_DEC:        +9.116d {+09d 06' 57"} (J2000)
ROLL:            262.422d
IMG_START_DATE:  17072 TJD;    50 DOY;   15/02/19
IMG_START_TIME:  60486.63 SOD {16:48:06.63} UT,   342.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     446057299
X_OFFSET:        1002 [pixels]
Y_OFFSET:        958 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1162
Y_GRB_POS:       1118
BINNING_INDEX:   1
IM_URL:          sw00631747000msuni0356.fits
SUN_POSTN:       332.78d {+22h 11m 07s}  -11.22d {-11d 12' 57"}
SUN_DIST:        122.70 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
MOON_POSTN:      341.39d {+22h 45m 35s}   -5.09d {-05d 05' 09"}
MOON_DIST:       113.59 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      200.91, -3.35 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       94.38,-14.26 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN Circular #17480
K.L. Page (U. Leicester), C. Pagani (U. Leicester), A. Melandri (INAF-OAB), P. D'Avanzo (INAF-OAB), V. D'Elia (ASDC), J.A. Kennea (PSU), B. Sbarufatti (INAF-OAB/PSU), D.N. Burrows (PSU), A.P. Beardmore (U. Leicester) and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team:
Swift-XRT has performed follow-up observations of the INTEGRAL-detected burst GRB 150219A (Mereghetti et al. GCN Circ. 17476), collecting 2.6 ks of Photon Counting (PC) mode data between T0+10.5 ks and T0+23.4 ks.
An uncatalogued X-ray source is detected inside the INTEGRAL error region and is fading with 3-sigma significance, and is therefore likely the GRB afterglow. The position of this source is RA, Dec=271.2507, -41.5942 which is equivalent to:
```
RA (J2000): 18:05:0.18
Dec(J2000): -41:35:39.0
```
with an uncertainty of 3.7 arcsec (radius, 90% confidence). This position is 53 arcsec from the INTEGRAL position.
The light curve can be modelled with a power-law decay with a decay index of alpha=2.8 (+0.9, -0.7).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.8 (+/-0.4). The best-fitting absorption column is 1.6 (+0.6, -0.5) x 10^22 cm^-2, in excess of the Galactic value of 1.4 x 10^21 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 6.3 x 10^-11 (1.1 x 10^-10) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     1.6 (+0.6, -0.5) x 10^22 cm^-2
Galactic foreground: 1.4 x 10^21 cm^-2
Excess significance: 4.6 sigma
Photon index:	     1.8 (+/-0.4)
```
If the light curve continues to decay with a power-law decay index of 2.8, the count rate at T+24 hours will be 5.8 x 10^-4 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 3.6 x 10^-14 (6.2 x 10^-14) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis of the likely afterglow are at http://www.swift.ac.uk/ToO_GRBs/00020483/index_1.php. The results of the full analysis of the XRT observations are available at http://www.swift.ac.uk/ToO_GRBs/00020483.
This circular is an official product of the Swift-XRT team.
GCN Circular #17481
A. von Kienlin (MPE) and C. Meegan (UAH) report on behalf of the Fermi GBM Team:
"At 12:31:12.26 UT on 19 February 2015, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 150219A (trigger 446041875 / 150219522), which was also detected by INTEGRAL/IBIS (Mereghetti et al. 2015, GCN 17476). The GBM on-ground location is consistent with the INTEGRAL position.
The angle from the Fermi LAT boresight is 105 degrees.
The GBM light curve shows a structured pulse with a duration (T90) of about 36 s (50-300 keV). The time-averaged spectrum from T0-2.304 s to T0+38.657 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.92 (+0.08/-0.07) and the cutoff energy, parameterized as Epeak, is 202.7(+23.2/-19.1) keV.
The event fluence (10-1000 keV) in this time interval is (1.00 +/- 0.05)E-05 erg/cm^2. The 1.024-sec peak photon flux measured starting from T0+9.664 s in the 10-1000 keV band is 4.2 +/- 0.3 ph/s/cm^2.
A Band function fits the spectrum equally well with Epeak= 166.7(+24.3/-17.3) keV, alpha = -0.82 +/- 0.10 and beta = -2.17 (+0.13/-0.24).
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."

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Jochen Greiner, last update: 20-Feb-2015 [Disclaimer]