TDRSS lightcurve for Trigger=1108515

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 30 May 22 15:30:38 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1108515,   Seg_Num: 0
GRB_RA:          299.353d {+19h 57m 25s} (J2000),
                 299.563d {+19h 58m 15s} (current),
                 298.883d {+19h 55m 32s} (1950)
GRB_DEC:         +35.140d {+35d 08' 23"} (J2000),
                 +35.201d {+35d 12' 03"} (current),
                 +35.004d {+35d 00' 15"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1297 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        19729 TJD;   150 DOY;   22/05/30
GRB_TIME:        55762.76 SOD {15:29:22.76} UT
GRB_PHI:         -126.81 [deg]
GRB_THETA:        31.62 [deg]
SOLN_STATUS:     0x513
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.04 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -2  +0  +1 +25  +0 
SUN_POSTN:        67.52d {+04h 30m 06s}  +21.83d {+21d 49' 43"}
SUN_DIST:        104.61 [deg]   Sun_angle= 8.5 [hr] (West of Sun)
MOON_POSTN:       69.08d {+04h 36m 18s}  +23.80d {+23d 47' 42"}
MOON_DIST:       104.07 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:       71.18,  3.20 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      313.32, 54.25 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This matches a source in the ground catalog: Cyg X-1,   delta=0.204 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 127.52,2.60 [deg].  
COMMENTS:           
COMMENTS:        This trigger occured while the StarTracker had lost lock, so it is possibly bogus.

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 30 May 22 15:47:47 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1108208,   Seg_Num: 0
GRB_RA:          244.983d {+16h 19m 56s} (J2000),
                 245.302d {+16h 21m 12s} (current),
                 244.272d {+16h 17m 05s} (1950)
GRB_DEC:         -15.656d {-15d 39' 22"} (J2000),
                 -15.709d {-15d 42' 30"} (current),
                 -15.537d {-15d 32' 12"} (1950)
GRB_DATE:        19726 TJD;   147 DOY;   22/05/27
GRB_TIME:        80677.92 SOD {22:24:37.92} UT
TRIGGER_INDEX:   423
GRB_PHI:         101.80 [deg]
GRB_THETA:        17.71 [deg]
DELTA_TIME:      6.00 [sec]
TRIGGER_DUR:     26.880 [sec] 
SOLN_STATUS:     0x10D
RATE_SIGNIF:     19.41 [sigma]
IMAGE_SIGNIF:    15.15 [sigma]
LC_URL:          sw01108208000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 22:24:37 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220527 ***A*** (trigger=1108515).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 244.983, -15.656 which is 
   RA(J2000) = 16h 19m 56s
   Dec(J2000) = -15d 39' 22"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty).  The BAT light curve showed a [**double-peaked**]
structure with a duration of about TTT sec.  The peak count rate
was ~0 counts/sec (15-350 keV), at ~ sec after the trigger.
  • Test version of draft template

    Initial TDRSS lightcurve and spacecraft attitude plot

    TDRSS lightcurve from T0-30 to T0+50 (zoom in)

    TDRSS light curve from T0-1 to T0+2 (More zoom in)

    1.6s binned TDRSS light curve

    Tilan's background subtracted TDRSS light curves

    Extended TDRSS light curve and spacecraft attitude plot(s)

    Extended TDRSS lc No.1

    Extended TDRSS lc No.2

    Extended TDRSS lc No.3

    Extended TDRSS lc No.4

    TDRSS extended lightcurve from T0-1 to T0+2

    T50 and T90 calculation

    Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)

    bat_grb_pos_cat.sh 244.983 -15.656 0.083
No match

    Search for this GRB position to the source locations in BAT transient monitor (search radius within 12 arcmin)

    python compare_catalog.py 244.983 -15.656
Sco X-1 10003 244.979 -15.64 0.016455915961538784

    Link to SIMBAD

  • Click here for the SIMBAD search!

    Frank's UVOT result

  • Click here!

    Frank's UVOT Blinking images

  • Click here!

    Elevation angle of GRB/Sun at the ground telescope locations

    GSFC, Greenbelt, Maryland
      TimeUT       Azimuth     Elevation
 Sun: 2022 5 30 15 293.011843  57.903067
 Obj: 2022 5 30 15 123.676186  -55.209882
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2022 5 30 15 262.167996  31.265971
 Obj: 2022 5 30 15 89.646100  -30.483031
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2022 5 30 15 260.284802  26.531734
 Obj: 2022 5 30 15 87.380408  -25.484082
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2022 5 30 15 242.168201  -10.263908
 Obj: 2022 5 30 15 68.709980  10.933116
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2022 5 30 15 303.335508  -74.221946
 Obj: 2022 5 30 15 132.444061  68.402735
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2022 5 30 15 177.274889  -33.743511
 Obj: 2022 5 30 15 359.701848  39.859890
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2022 5 30 15 80.512878  64.481819
 Obj: 2022 5 30 15 250.666157  -59.934696
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2022 5 30 15 208.605007  32.175758
 Obj: 2022 5 30 15 29.649611  -38.651659
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1108515/tdrss_ql/
 
bat_raw_lc.fits  : TDRSS FITS light curve from GCN
gcn_position.txt : GCN BAT position notice
ratelc_tdrss.qdp : QDP file of the TDRSS light curve
tdrss_lc.gif     : GIF TDRSS light curve
sc_att.qdp       : QDP file of the spacecraft attitude
sc_att.gif       : GIF spacecraft attitude
bb.gti           : Bayesian block GTI file (battblocks)
dur.gti          : Duration GTI file (battblocks)
battblocks.log   : Output log of battblocks
 


    Plot creation:
Mon May 30 11:48:02 EDT 2022