[vsnet-grb 285939] CALET-GBM Lightcurves added to GCN

Sat Mar 12 10:26:38 JST 2016

TO:  All GCN Notice recipients
RE:  CALET Notice types are available
DT:  11 Mar 2016

INTRODUCTION:
The GCN system has been modified to incorporate the distribution
of lightcurves of GRBs, other unknown and known transients, and non-astrophysically-caused triggers
detected by the GBM instrument on the CALET spacecraft.
The CALET-GBM instrument will trigger about 10 times per month.
There are two type of Notices: CALT_GBM_FLT_LC and CALET_GBM_GND_LC.
They are sent to GCN and automatically distributed to those "sites"
that have the CALET Lightcurve notice types enabled
and that meet their filtering requirements.
These notices contain the trigger date/time and the lightcurve.
No position information is available.  However, since the detectors have the
certain field-of-view (~3 sr for HXM and 2 pi sr for SGM), the center position
of that field of view is provided as POINT_RA and POINT_DEC in the notice."

OCCURRANCE RATE:
CALET-GBM will trigger about 10 times per month.
About 50% of the triggers will be astrophysical, the rest are noise.

TIME DELAY:
The CALET automated ground software finds the transients and sends the message to GCN.
The time delays range from 1 to a few minutes for the FLT notice type and
a few hours for the GND notice type.

NOTICE TYPES, CONTENT, and PURPOSE:
There are two notice types:
1) The CALET_GBM_FLT_LC Notice contains countrate lightcurve increases
that exceeds a threshold value (over a time interval).
These increases can be caused by GRBs, other x-ray/hard_x-ray transients, and sometimes noise.
The Notices contain the date, time, and trigger criteria (timescale and energy_band).
This notice type does NOT contain any position information (unlike most of the GCN Notice types).
2) The GBM_GND_LC notice will almost always accompany the GBM_FLT_LC notice.
It is essentially all the same information, but improved with ground analysis processing.

ACTION ITEM:
If, after reviewing the information below, you want to receive
these CALET notices, please send me a request to have them enabled.
You can do this by forwarding this email (which has your sitename identifier)
to sbarthel at milkyway.gsfc.nasa.gov .
Or you can go to  http://gcn.gsfc.nasa.gov/gcn/config_builder.html
and select "#2 Modify an existing config".
You can also take this opportunity to make other changes to your configuration.

ARCHIVE STORAGE:
The GCN/CALET Notices are archived within the GCN website
in the Table of CALET Notices:
    http://gcn.gsfc.nasa.gov/gcn/calet_triggers.html
This single archive page contains both types.

MORE INFORMATION:
Can be found at:  http://gcn.gsfc.nasa.gov/gcn/calet.html

NOTICE EXAMPLE:
Here are examples of a full-format email CALET Notices:

/////////////////////////GBM FLT LC e-mail format//////////////////////////////
TITLE:           GCN/CALET NOTICE
NOTICE_DATE:     Fri 11 Mar 16 23:32:25 UT
NOTICE_TYPE:     CALET GBM Flight Lightcurve
POINT_RA:        123.46d {+08h 13m 50s} (J2000),
POINT_DEC:       -54.32d {-54d 19' 14"} (J2000),
TRIGGER_NUM:     123456789
TRIGGER_DATE:    17457 TJD;    70 DOY;   16/03/11
TRIGGER_TIME:    84737.00 SOD {23:32:17.00} UT
TRIGGER_DET:     1 1 0 (HXM1 HXM2 SGM)
SIGNIFICANCE:    12.34 [sigma]
FOREGND_DUR:     4.00 [sec]
BACKGND_DUR1:    2.00 [sec]
ENERGY_BAND:     18-52 [keV]
SC_LON_LAT:       0.52, 0.18 [deg]
LC_URL:          http://cgbm.calet.jp/cgbm_trigger/flight//123456789/index.html
COMMENTS:        CALET-GBM Flight Lightcurve.
/////////////////////////GBM GND LC e-mail format//////////////////////////////
TITLE:           GCN/CALET NOTICE
NOTICE_DATE:     Fri 11 Mar 16 23:32:25 UT
NOTICE_TYPE:     CALET GBM Ground Lightcurve 
POINT_RA:        123.46d {+08h 13m 50s} (J2000),
POINT_DEC:       -54.32d {-54d 19' 14"} (J2000),
TRIGGER_NUM:     123456789
TRIGGER_DATE:    17457 TJD;    70 DOY;   16/03/11
TRIGGER_TIME:    84737.00 SOD {23:32:17.00} UT
TRIGGER_DET:     1 1 0 (HXM1 HXM2 SGM)
SIGNIFICANCE:    12.34 [sigma]
FOREGND_DUR:     4.00 [sec]
BACKGND_DUR1:    2.00 [sec]
BACKGND_DUR2:    1.00 [sec]
ENERGY_BAND:     18-52 [keV]
SC_LON_LAT:       0.52, 0.18 [deg]
LC_URL:          http://cgbm.calet.jp/cgbm_trigger/ground/123456789/index.html
COMMENTS:        CALET-GBM Ground Lightcurve.
///////////////////////////////////////////////////////////////////////////////

REMINDER OF RECENT ADDITIONS TO GCN:
In case you have missed them, here is a brief list of the most recent additions
to the GCN system.  You might consider signing up for these Notice types as well.
The full announcements/descriptions for each of these can be found at:
http://gcn.gsfc.nasa.gov/gcn/whats_new.html
SNEWS  (Dec 2015)                      // SNEWS neutrino coincidences and singles from supernovae
2nd VOEvent Ver 2.0 server (Nov 2015)  // A redundant Ver 2.0 VOevent server added
FERMI_GBM LOCATION MAPS (Apr 2014)     // GBM Location_Map URL available
FERMI_GBM_LIGHTCURVE (Apr 2014)        // GBM Lightcurve URL available
FERMI_LAT_OFFLINE (Feb 2014)           // LAT detections found in off-line ground processing
SUZAKU_LIGHTCRVE (Nov 2013)            // Lightcurves from Suzaku-WAM
IPN_RAW resumes (Aug 2012)             // IPN Team resumes producing the IPN_RAW notices
SWIFT_BAT_SUB_SUB_THRESHOLD (May 2012) // Swift-BAT Triggers with very low significance; use for temporal coincidences
VOEvent Direct Server (Mar 2012)       // Added 3 VOEvent servers to allow for direct distribution of VOEvents
FERMI_LAT_MON/_TRANS (Aug 2011)        // Flare-ups from known sources monitored by Fermi-LAT & non-GRB transients
FERMI_LAT_GND (Aug 2011)               // Automated ground processing to get GRB positions

Sincerely,
Scott

Scott Barthelmy                      NASA-GSFC, Code 661, Greenbelt, MD
20771
PHONE:  301-286-3106                 (office)       CELL:   301-346-3733
EMAIL:  scott at lheamail.gsfc.nasa.gov
PAGER:  3013463733 at cingularme.com
WEB:    http://gcn.gsfc.nasa.gov/gcn

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DATES      25jun05   23oct07
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DIST_METHOD   EMAIL
DIST_ADDRESS  vsnet-grb at ooruri.kusastro.kyoto-u.ac.jp
POC_NAME      Daisaku Nogami
POC_ADDRESS   vsnet-grb at ooruri.kusastro.kyoto-u.ac.jp
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