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IPNGRB - Gamma-Ray Bursts from the Interplanetary Network

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Overview

The Interplanetary Network (IPN) is a group of spacecrafts equipped with gamma-ray burst detectors used to localize gamma-ray bursts (GRB) and soft gamma repeaters (SGRs, or magnetars). The astronomical locations of GRBs are determined by the comparison of the arrival times of the event at the locations of the detectors used on different space missions. The precision is proportional to the distance of spacecraft separations, so that the localizational accuracy of a network with baselines of thousands of light-seconds can be equal or superior to that of any other technique.

The primary disadvantage of the IPN method, however, is the 1-day to 1.5-day delay in the acquisition of data from all the spacecraft in the network. Interplanetary GRB networks have been in existence since 1977, contributing to the studies of various astrophysical gamma-ray transients, most notably GRBs and SGRs (soft gamma repeaters).

The IPN3 began operations in 1990, with the launch of the Ulysses spacecraft. It was joined by the Compton Gamma Ray Observatory in 1991. Pioneer Venus Orbiter, Mars Observer, and the Italian X-ray astronomy satellite BeppoSAX were part of the network while they were operating. Twenty-six experiments or missions have joined the network so far. Today, the main spacecrafts contributing their data are WIND, Mars Odyssey, Messanger, INTEGRAL, RHESSI, Swift, Suzaku, Agile and Fermi. XMM-Newton and MAXI are kept to record the Cosmic ray and SGR but not used for triangulation because of the different energy range.

The IPNGRB database table is derived from a list provided by Kevin Hurley <khurley@sunspto.ssl.berkeley.edu>, based on the IPN3. The initial list also includes particles and solar events as well as unconfirmed SGRs and GRBs. The IPNGRB database includes only the observations of confirmed cosmic gamma-ray bursts and SGR since the launch of the Ulysses spacecraft. It is updated every time a new list is provided to the HEASARC.


Bulletin

The IPNGRB database table was last updated on 28 June 2012.

Provenance

This HEASARC catalog was last updated in Dec 2010, derived from the master list of IPN3 events, complete through Aug 2010, provided by Kevin Hurley. He also provided a FORTRAN program that generates the list of selected events. The output of this program is ingested into the HEASARC database system. Information on the IPN3 system is available at http://ssl.berkeley.edu/ipn3/

Information on the IPN can be found at http://heasarc.gsfc.nasa.gov/docs/heasarc/missions/ipn.html


Description

This database table contains the time of the event and the response of each of the IPN satellites to it. Since the time of the event may not be the time at Earth, the satellite from which the time is derived is also given. The list does not contain coordinates with the positions of the gamma-ray burst. There are 31 satellites considered in the IPN3, however not all are currently operating and not all have operated simultaneously. Bursts that were observed only by BATSE are not listed here. The BATSE bursts are available from the HEASARC database's Browse interface, http://heasarc.gsfc.nasa.gov/db-perl/W3Browse/w3browse.pl, by selecting the CGRO mission. Similarly there are no events that are marked as Swift only or Fermi only.

The table below gives an overview of the bursts in this database table and the number of satellites that have seen the events. There are 5325 confirmed cosmic events (complete through Dec 2010) and detections of five Soft Gamma-ray Repeaters (SGRs). Note that there are only four events detected by up to 9 possible satellites.

                                  N=1    2    3    4    5    6    7    8    9

  5764 CONFIRMED COSMIC EVENTS    1065 2020 1231  794  363  188   87   12    4
    11 SOFT GAMMA REPEATERS          5    2    4    0    0    0    0    0    0
   704 SGR1806-20                  534  113   38   12    4    3    0    0    0
   120 SGR1900+14                   12   73   27    6    1    1    0    0    0
    53 SGR1627-41                   10   23   20    0    0    0    0    0    0
   126 SGR0501+45                  103   17    4    2    0    0    0    0    0
     2 SGR0418                       0    1    1    0    0    0    0    0    0


Parameters

Event_Number
A sequential number associated to each events. This is not a unique identifier of the burst number. I.e., further updates can have a different number associated to the same event. This should be regarded only as an index for the table.

Time
The date and time of the event.

Date_Event
The date of the event as day month and year (e.g. 11 NOV 90).

Day_Year
The day of the year of when the event occured.

Time_Event
The time of the event as HH:MM:SS (e.g. 21:49:02).

Second
The number of seconds from the beginning of the day until when the event occurred.

Num_Sat
This parameter reports the satellite number to which the time of the event refers. Note: Unless the satellite is in low Earth orbit, this time will not be the time on Earth. The satellites are numbered as follows: 1-Ulysses, 2-BATSE/GRO, 3-OSSE/GRO, 4-Comptel/GRO, 5-EGRET/GRO, 6-Pioneer Venus Orbiter, 7-GINGA, 8-Defense Meteor. Sat. Program, 9-WATCH/Granat, 10-SIGMA/Granat, 11-PHEBUS/Granat, 12-Coronas, 13-Yohkoh, 14- WATCH/EURECA, 15-Mars Observer/Odyssey, 16-TGRS/WIND, 17-KONUS/WIND, 18-BeppoSAX, 19-HETE2, 20-SROSS C-2, 21-NEAR, 23-RHESSI, 24-INTEGRAL, 25-Swift, 26-MESSENGER , 27-Suzaku, 28-Agile, 29-Fermi,30-XMM-Newton and 31-MAXI

Earth_Cross
The Earth crossing window in seconds.

Venus_Cross
The Venus crossing window in seconds.

Mars_Cross
The Mars crossing window in seconds.

Ulysses_Cross
The Ulysses crossing window in seconds.

Event_ID
The events in this databases are either confirmed cosmic events or SGRs. The EVENT_ID parameter can have only the following values: "CONF. COSMIC", "SGR1806-20", "SGR1900+14", "SGR1627-41","SGR0501+45","SGR0418"

Ulysses
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

Ulysses is a NASA/ESA joint mission launched 6 October 1990.

BATSE_GRO
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

BATSE (20-1000 keV) was one of the instruments of CGRO. Lifetime: 5 April 1991 - 4 June 2000.

OSSE_GRO
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

OSSE (0.05-10 MeV) was one of the instruments of CGRO. Lifetime: 5 April 1991 - 4 June 2000.

Comptel_GRO
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

COMPTEL (0.8-30 MeV) was one of the instruments of CGRO. Lifetime: 5 April 1991 - 4 June 2000.

Egret_GRO
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

EGRET (30MeV-10 GeV) was one of the instruments of CGRO. Lifetime: 5 April 1991 - 4 June 2000.

PVO
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

Pioneer Venus Orbiter (0.1-2 MeV) is no longer operating. Lifetime: 20 May 1978 - 8 October 1992.

Gbd_Ginga
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

The GINGA Gamma-ray Burst Detector (1.5-500 keV) was one of the instruments of GINGA. Lifetime: 5 February 1987 - 1 November 1991.

DMS
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

The Defense Meteorological Satellites are a series of satellites. The latest was launched on 12 December 1999.

Watch_Granat
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

WATCH (6-120 keV) was one of the experiments on board Granat. Lifetime: 1 December 1989 - 27 November 1998.

Sigma_Granat
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

SIGMA (0.03-1.3 MeV) was one of the experiments on board Granat. Lifetime: 1 December 1989 - 27 November 1998.

Phebus_Granat
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

PHEBUS (0.1-100 MeV) was one of the experiments on board Granat. Lifetime: 1 December 1989 - 27 November 1998.

Coronas
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

The Russian spacecraft Koronas-I was launched on 2 March 1994 and it is still operating.

Yohkoh
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

Yohkoh was launched on 31 August 1991. It stopped operating in December 2001.

Watch_Eureca
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

WATCH (6-150 keV) was one of the instruments of the EURECA platform. Lifetime: 31 July 1992 - 1 July 1993.

Mars_Observer_Odyssey
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

Mars Observer (0.5-2.0 MeV) is no longer operating. Lifetime: 25 September 1992 - 21 August 1993.

Mars Odyssey (30 keV-10 MeV) was launched on 7 April 2001 and is still operating.

TGRS_Wind
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

TGRS (15 keV - 10 MeV) is one of the instruments of GGS-WIND. GGS-WIND was launched on 1 November 1994, and it is still operating.

Konus_Wind
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

KONUS (10 - 770 keV) is one of the instruments of GGS-WIND. GGS-WIND was launched on 1 November 1994, and it is still operating.

BeppoSAX
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

Launched on 30 April 1996 and end operations on 30 April 2002.

HETE2
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

Launched on 9 October 2000 and no longer operating.

SROSS_C
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

The Indian spacecraft SROSS-C and SROSS-C2 operated from 25 May 1992 until 14 July 1992 and 2001.

Near
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

NEAR operated from 17 February 1996 to 14 February 2001.

ASM_RXTE
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

The All-Sky Monitor (2-10 keV) is one of the instruments of RXTE, which was launched on 30 December 1995 and is still operating.

Rhessi
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

RHESSI was launched on 5 February 2002 and is still operating.

Integral
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

INTEGRAL was launched on 17 October 2002 and is still operating.

Swift
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: YES, means that the experiment triggered on the event; N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. A blank field means that the data have not been examined.

Swift was launched on 20 November 2004 and is still operating.

Messenger
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. This experiment does not have a triggered data mode. A blank field means that the data have not been examined.

MESSENGER was launched on 3 August 2004 and is still operating; however, the experiment has only been turned on once for a brief period.

Suzaku
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. This experiment does not have a triggered data mode. A blank field means that the data have not been examined.

Suzaku was launched on 10 July 2005 and is still operating.

Agile
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. This experiment does not have a triggered data mode. A blank field means that the data have not been examined.

Agile was launched on 23 April 2007 and is still operating.

Fermi
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. This experiment does not have a triggered data mode. A blank field means that the data have not been examined.

Fermi was launched on 11 June 2008 and is still operating.

XMM
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. This experiment does not have a triggered data mode. A blank field means that the data have not been examined.

XMM was launched on 10 Dec 1999 and is still operating.

Maxi
This parameter and the others named after an experiment or mission name records if that particular event was seen by that experiment or mission name. The parameter is coded as follows: N/O, means event non-observable with this spacecraft, RI, means that a rate increase was observed; NO, means that no trigger or rate increase was detected even if the event was observable by that spacecraft. This experiment does not have a triggered data mode. A blank field means that the data have not been examined.

MAXI was launched on 13 July 2009 and is still operating.

Comment
Comment field. It may include information such as burst numbers for various satellites.


Contact Person

Questions regarding the IPNGRB database table can be addressed to the HEASARC User Hotline.

Page Author: Browse Software Development Team
Last Modified: 28-Jun-2012