TDRSS scaled map for 821902

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 04 Apr 18 02:11:59 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     821902,   Seg_Num: 0
GRB_RA:           53.384d {+03h 33m 32s} (J2000),
                  53.520d {+03h 34m 05s} (current),
                  53.012d {+03h 32m 03s} (1950)
GRB_DEC:         -50.195d {-50d 11' 41"} (J2000),
                 -50.135d {-50d 08' 03"} (current),
                 -50.362d {-50d 21' 42"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       5995 [cnts]    Image_Peak=464 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   155     E_range: 50-350 keV
BKG_INTEN:       27355 [cnts]
BKG_TIME:        7891.27 SOD {02:11:31.27} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18212 TJD;    94 DOY;   18/04/04
GRB_TIME:        7904.07 SOD {02:11:44.07} UT
GRB_PHI:         -147.22 [deg]
GRB_THETA:        25.14 [deg]
SOLN_STATUS:     0x20010103
RATE_SIGNIF:     39.33 [sigma]
IMAGE_SIGNIF:    14.59 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +3  +3  +0  +0 -41  +0 
SUN_POSTN:        13.14d {+00h 52m 33s}   +5.63d {+05d 37' 34"}
SUN_DIST:         65.75 [deg]   Sun_angle= -2.7 [hr] (East of Sun)
MOON_POSTN:      236.45d {+15h 45m 48s}  -14.86d {-14d 51' 20"}
MOON_DIST:       114.96 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:      260.92,-51.57 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       23.48,-65.40 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This position matches one of the nearby galaxy sources in the on-board catalog!  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This matches a source in the ground catalog: 2M033312-502451,   delta=0.225 [deg].  
COMMENTS:        This is a GRB in nearby galaxy or it is noise.  
COMMENTS:        This trigger occurred at longitude,latitude = 176.20,13.13 [deg].  
COMMENTS:           

GCN BAT Scaled Map Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 04 Apr 18 02:22:00 UT
NOTICE_TYPE:     Swift-BAT Scaled Map
TRIGGER_NUM:     821902,   Seg_Num: 0
POINT_RA:         83.529d {+05h 34m 07s} (J2000)
POINT_DEC:       -37.172d {-37d 10' 20"} (J2000)
MAP_DATE:        18212 TJD;    94 DOY;   18/04/04
MAP_TIME:        7904.07 SOD {02:11:44.07} UT
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x103
RATE_SIGNIF:     39.33 [sigma]
IMAGE_SIGNIF:    14.59 [sigma]
MAP_URL:         sw00821902000msbsm.fits
SUN_POSTN:        13.14d {+00h 52m 34s}   +5.63d {+05d 37' 43"}
MOON_POSTN:      236.54d {+15h 46m 09s}  -14.88d {-14d 52' 36"}
MOON_ILLUM:      86 [%]
GAL_COORDS:      241.97,-30.68 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       79.53,-60.38 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-BAT Scaled Map.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  

Scaled map image

The green circle (6 arcmin radius) is the BAT position (RA, Dec) = (53.384, -50.195).
 

Search BAT source with the INTEGRAL catalog

known_source_INTEGRAL.sh 53.384 -50.195 1.0
No source found
 

Results of batcelldetect

# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 19.2729 -73.4422    0.0  47.3 -176.0  -0.0438  -2.2    0.0	SMC X-1                       
 76.4194 -23.8414    0.0  14.7  -43.0  -0.0046  -0.5    0.0	XSS J05054-2348               
 83.1921 -66.3675    0.0  29.2  163.9  -0.0026  -0.2    0.0	LMC X-4                       
 83.6332  22.0145    0.0  59.2  -16.3  -0.0703  -0.9    0.0	Crab                          
 88.0474  -7.4562    0.0  30.0   -7.4   0.0080   0.8    0.0	NGC 2110                      
 94.2804   9.1369    0.0  47.4   -1.9  -0.0296  -1.5    0.0	4U 0614+091                   
128.8361 -45.1764    0.0  34.6  101.5   0.0072   0.3    0.0	PSR B0833-45                  
135.5286 -40.5547    0.0  40.0   95.1  -0.0570  -1.2    0.0	Vela X-1                      
141.1092 -55.2067    0.0  42.3  117.9  -0.0015  -0.0    0.0	4U 0919-54                    
 53.3840 -50.1723    0.9  25.1 -147.2   0.1489  13.2 ------	UNKNOWN                       
 38.7541 -52.8040    2.6  34.6 -147.8   0.0590   4.4 ------	UNKNOWN                       
 27.8631 -31.8190    2.2  45.5 -116.9   0.4709   5.2 ------	UNKNOWN                       
 26.7350 -32.9140    2.8  46.0 -118.9   0.3663   4.2 ------	UNKNOWN                       

Search for the BAT bright source catalog

# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6332  22.0145    0.0  59.2  -16.3  -0.0703  -0.9    0.0	Crab                          
135.5286 -40.5547    0.0  40.0   95.1  -0.0570  -1.2    0.0	Vela X-1                      
 53.3840 -50.1723    0.9  25.1 -147.2   0.1489  13.2 ------	UNKNOWN                       
 38.7541 -52.8040    2.6  34.6 -147.8   0.0590   4.4 ------	UNKNOWN                       
 27.8631 -31.8190    2.2  45.5 -116.9   0.4709   5.2 ------	UNKNOWN                       
 26.7350 -32.9140    2.8  46.0 -118.9   0.3663   4.2 ------	UNKNOWN                       
 
Search for UNKNOWN source R.A. = 26.7350 Dec. = -32.9140 (search radius of 3 degrees)
No bright source found.
 
Search for UNKNOWN source R.A. = 27.8631 Dec. = -31.8190 (search radius of 3 degrees)
No bright source found.
 
Search for UNKNOWN source R.A. = 38.7541 Dec. = -52.8040 (search radius of 3 degrees)
No bright source found.
 
Search for UNKNOWN source R.A. = 53.3840 Dec. = -50.1723 (search radius of 3 degrees)
No bright source found.
 

DPI of the combined detector enable/disable map (archived enable/disable map + downloaded data)

DPI of the scaled map

Pixel vs. Counts plot

The data/results are in /local/data/bat1/prebascript/trigger821902/tdrss_ql/
 
bat_scaledmap.fits : TDRSS FITS scaled map from GCN
source.img         : Sky FITS image of the scaled map (batfftimage)
source.list        : FITS list of the detected sources (batcelldetect)
scaledmap.log      : Ascii output of the analysis log
bat_pos.reg        : region file for ds9
source.gif         : GIF sky image
 
Processed time:
Tue Apr  3 22:23:55 EDT 2018