- ID:
- ivo://nasa.heasarc/ariel5
- Title:
- Ariel V All-Sky Monitor
- Short Name:
- ARIEL5
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The All Sky Monitor was one of six X-ray instruments on the Ariel 5 satellite. The satellite was launched into a low inclination (2.8 degrees), nearly circular orbit (altitude ~520 km) on 15 October 1974. Ariel 5 was actively pointed so that objects of interest could be observed by the four instruments aligned along its spin axis. The ASM was mounted 90 degrees from the spin axis; the satellite had a spin period of 6 seconds. The ASM operated from October 18, 1974 to March 10, 1980. The ASM instrument, built by the Lab for High Energy Astrophysics at NASA- Goddard Space Flight Center, provided continuous coverage of the entire sky, except for a 20 degree band straddling the satellite's equator. The ASM was intended to act as an early detection system for transients, and to monitor the variability of bright ( > 0.2 Crab) galactic sources. The instrument consisted of a pair of X-ray pinhole cameras, each covering opposite halves of the sky, with gas-filled imaging proportional counters. Position determination of sources was accomplished through position-sensitive anode wires and satellite rotation. Each camera had a 1-cm<sup>2</sup> aperture. Overall telemetry constraints limited the duty cycle for any given source to 1 percent. With the low telemetry rate provided for this instrument (1 bit/s), temporal and spectral information were sacrificed for the sake of all-sky coverage. Hence, spectral information was limited to a single 3 - 6 keV bandpass, and temporal resolution was limited to the satellite orbital period, ~100 minutes. This is a service provided by NASA HEASARC .
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- ID:
- ivo://nasa.heasarc/ascamaster
- Title:
- ASCA Master Catalog
- Short Name:
- ASCA
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The ASCAMASTER table contains data on all ASCA observations that were ever in any of the following states: 'Accepted', 'Scheduled Long-Term', 'Scheduled Short-Term', 'Processed', and 'Archived'. The final status of an observation is given by the parameter Status. Specific dates that affect the status of an observation are listed as the parameters scheduled_date, observed_date, processed_date, archived_date, and cycle. Notice that, if one or more of the date parameters are empty for a given observation, this means that that those particular processes have not occurred: e.g., if observed_date is empty, this means that the planned observation was not observed. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/ascaprspec
- Title:
- ASCAProposalInfo&Abstracts
- Short Name:
- ASCAPRSPEC
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The ASCAPRSPEC table was created for the purpose of providing a complete, accurate, and easily accessible tracking of ASCA proposal information. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/ascao
- Title:
- ASCA Proposals
- Short Name:
- ASCAO
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The ASCAO database contains the listing of accepted targets from all proposals submitted in repsonse to the ASCA Guest Observer (GO) Announcements of Opportunities (AOs), as well as the targets that were selected for the Performance Verification (PV) phase. The current version of ASCAO includes all accepted targets from AOs 1 through 8.5 inclusive. Notice that, since the accepted targets include Priority 3 ones of which only a fraction have or will actually be observed, some of the listed targets in this database will never have been observed. To obtain more detailed information about the status of particular targets, please consult either the Master ASCA database table (ASCAMASTER) or the ASCA Observing Log database table (ASCALOG). This database was last updated in August 2000 based on information provided by the ASCA Project. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/bbxrt
- Title:
- BBXRT Archive
- Short Name:
- BBXRT
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The BBXRT database table contains information about each observation made by the Broad Band X-Ray Telescope. It includes a catalog of observations and spectral and lightcurve products for each of the 10 pixels per observation. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/saxao
- Title:
- BeppoSAX Approved Pointings
- Short Name:
- SAXAO
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The SAXAO database contains the list of the all accepted AO1/AO2/AO3/A04/AO5 SAX CORE and GO program proposals, approved for the first year of operations. The database also includes targets scheduled for the Science Verification Phase (SVP) (from launch, 30 April 1996, till August 1996). The CORE program includes proposals led by Principal Investigator belonging to Italian or Dutch institutions, to the Space Science Department of ESA or to the Max Planck Institute for Extraterrestial Physics in Garching. Approximately 80 percent of the first year observing time is allocated to the CORE program. The remaining 20 percent of time for the first year operations is reserved for the GO program. For the AO2 60 percent is allocated to the CORE program and 40 percent to the GO. For the AO3 and AO4 50 percent is allocated to the CORE program and 50 percent to the GO. More information on the SAX mission is available at the following address <a href="http://www.asdc.asi.it">http://www.asdc.asi.it</a> and also <a href="https://heasarc.gsfc.nasa.gov/docs/sax/saxgof.html">https://heasarc.gsfc.nasa.gov/docs/sax/saxgof.html</a>. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/saxnfilog
- Title:
- BeppoSAX NFI Archive and Observation Log
- Short Name:
- SAXNFI
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The SAXNFILOG database contains the SAX Narrow Field Instruments (NFI) approved pointings, but it also served as an observations log. It includes data taken during AO1, AO2, AO3, A04 and AO5 cycles and the Science Verification Phase (SVP). This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/saxwfclog
- Title:
- BeppoSAX WFC Observation Log
- Short Name:
- SAXWFC
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The SAXWFCLOG database contains the SAX WFCs observations log for the AO cycles and the Science Verification Phase (SVP). The two WFCs are located at 90 degrees from the NFI and set 180 degrees apart. The field of view is 40 deg X 40 deg and the coordinates given in this databases are the pointing positions. The database is updated regularly to include the most recent timeline, and updates are provided by the SAX-Science Data Center in Rome. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/calchdmstr
- Title:
- CALET CHarge Detector (CHD) Master Catalog
- Short Name:
- CALCHDMSTR
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The CALCHDMSTR database table records high-level information of the lightcurves obtained with the CHarge Detector (CHD), the top layer of the calorimeter instrument on the CALorimetric Electron Telescope (CALET) mission. CALET is a Japanese mission led by JAXA, in collaboration with the Italian Space Agency (ASI) and NASA, and is dedicated to the study of high energy cosmic rays. CALET was launched on August 19, 2015, by a Japanese carrier, H2 Transfer Vehicle, and robotically installed on the Japanese Experiment Module-Exposed Facility (JEM-EF) on the International Space Station (ISS). CALET started scientific observations in October, 2015. The CALET CHD lightcurves are delivered by the CALET team in Japan as ASCII files to the DARTS archive located at ISAS (Japan). The HEASARC developed software to create the FITS versions of the lightcurves. This is run at DARTS, and the output is placed online at <a href="https://darts.isas.jaxa.jp/astro/calet/">https://darts.isas.jaxa.jp/astro/calet/</a>. The HEASARC hosts a copy of these lightcurves and generates this database table by collecting high-level information from the data. The Data and the database table are updated regularly during operation. This is a service provided by NASA HEASARC .
- ID:
- ivo://nasa.heasarc/calgbmmstr
- Title:
- CALET Gamma-Ray Burst Monitor (GBM) Master Catalog
- Short Name:
- CALGBMMSTR
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The CALGBMMSTR database table records high-level information of the observations obtained with the CALET Gamma-ray Burst Monitor (CGBM), the second scientific payload on the CALorimetric Electron Telescope (CALET) mission. The Gamma-ray Burst Monitor provides a broadband energy coverage from 7 keV to 20 MeV and simultaneous observations with the primary instrument CALET Calorimeter (CCAL) in the GeV - TeV gamma-ray range and with the Advanced Star Camera (ASC) in the optical for gamma-ray bursts (GRBs) and other X-ray/gamma-ray transients. CALET is a Japanese mission led by JAXA, in collaboration with the Italian Space Agency (ASI) and NASA, and it is dedicated to the study of high energy cosmic rays. CALET was launched on August 19, 2015, by a Japanese carrier, H2 Transfer Vehicle, and robotically installed on the Japanese Experiment Module-Exposed Facility (JEM-EF) on the International Space Station (ISS). CALET started scientific observations in October, 2015. The CALET GBM Team in collaboration with DARTS and HEASARC developed the FITS file structure for the GBM data and their archive. The CALET GBM data are delivered by the CALET GBM team in Japan to the DARTS archive located at ISAS (Japan). The HEASARC hosts a copy of these data and generates this database table by collecting high-level information from the data. The data and the database table are updated regularly during operation. The first data release includes PH and TH data. Event data and the image from the ASC are added in a second phase. This is a service provided by NASA HEASARC .
