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321. NSSDC National Space Science Data Center
ID:
ivo://nasa.gsfc.nssdc/nssdc
Title:
NSSDC National Space Science Data Center
Short Name:
NSSDC
Date:
27 Apr 2006 17:11:54
Publisher:
NASA
Description:
NSSDC is the permanent archive for NASA space science mission data: astronomy and astrophysics, solar and space plasma physics, and planetary and lunar science. As permanent archive, NSSDC teams with NASA's discipline-specific space science "active archives" which provide access to data to researchers and to the general public. NSSDC also serves as NASA's primary active archive for space physics mission data and for selected NASA astrophysics missions. It provides access to several geophysical models and to data from some non-NASA mission data. In addition to supporting active space physics and astrophysics researchers, NSSDC also supports the general public both via several public-interest web-based services (e.g., the Photo Gallery) and via the offline mailing of CD-ROMs, photoprints, and other items. NSSDC provides online information about NASA and non-NASA spacecraft and experiments, and about data management standards and technologies.
322. NuSTAR As-Flown Timeline
ID:
ivo://nasa.heasarc/nuaftl
Title:
NuSTAR As-Flown Timeline
Short Name:
NUAFTL
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
The NUAFTL database table records the As-Flown Timeline for the Nuclear Spectroscopic Telescope Array (NuSTAR) hard X-ray observatory. NuSTAR observes the sky in the high energy X-ray (3 - 79 keV) region of the electromagnetic spectrum using focusing optics. The as-flown timeline provides a summary of what NuSTAR has observed and is updated automatically when each observation is completed. This HEASARC database table is updated automatically within a day or so of updates to the referenced URL. This is a service provided by NASA HEASARC .
323. NuSTAR Master Catalog
ID:
ivo://nasa.heasarc/numaster
Title:
NuSTAR Master Catalog
Short Name:
NUMASTER
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
The Nuclear Spectroscopic Telescope Array (NuSTAR) mission, launched on 2012 June 13, is the first focusing high-energy X-ray telescope in orbit. NuSTAR operates in the band from 3 to 79 keV, extending the sensitivity of focusing instruments far beyond the ~10 keV high-energy cutoff achieved by all previous X-ray satellites. The inherently low background associated with concentrating the X-ray light enables NuSTAR to probe the hard X-ray sky with a more than 100-fold improvement in sensitivity over the collimated or coded mask instruments that have operated in this bandpass. The observatory was placed into a 600-km altitude, 6 degree inclination circular orbit, and consists of two co-aligned grazing-incidence X-ray telescopes pointed at celestial targets by a three-axis stabilized spacecraft. NuSTAR has completed its two-year primary science mission, and, with an expected orbit lifetime of more than 10 years, the opportunity for proposing observations as part of the General Observer (GO) program is now available, with observations beginning in 2015. Using its unprecedented combination of sensitivity and spatial and spectral resolution, NuSTAR offers opportunities for a broad range of science investigations, ranging from probing cosmic ray origins to studying the extreme physics around compact objects to mapping micro-flares on the surface of the Sun. NuSTAR also responds to targets of opportunity including supernovae and gamma-ray bursts. This table contains a list of (a) unobserved targets that are planned or have been accepted for observation by NuSTAR in the future and (b) NuSTAR observations which have been processed and successfully validated by the NuSTAR Science Operation Center. The data from these observations may or may not be public and the user should check the value of the public_date parameter to determine the status of a specified data set. Only those ObsIDs which have a public_date in the past will have data publicly available. Observations with a public_date parameter value which is either blank or a date in the future have been ingested into the HEASARC archive but will remain encrypted until their public date. Entries with the status field set to 'accepted' are targets approved for scheduling, and the planned exposure time given in the exposure_a (and exposure_b) parameter will have a negative value for those targets. This database table is based on information supplied by the NuSTAR Project at Caltech. It is automatically updated on a regular basis. This is a service provided by NASA HEASARC .
324. Observatoire du Mont-Megantic Archive
ID:
ivo://cadc.nrc.ca/OMM
Title:
Observatoire du Mont-Megantic Archive
Short Name:
OMM Archive
Date:
15 Jun 2019 21:15:11
Publisher:
Canadian Astronomy Data Centre
Description:
325. Official ALMA Simple Image Access (EA server at NAOJ)
ID:
ivo://jao.alma/sia2_ea
Title:
Official ALMA Simple Image Access (EA server at NAOJ)
Short Name:
ALMA SIA2 EA
Date:
06 Sep 2024 06:59:55
Publisher:
Joint ALMA Observatory (JAO)
Description:
The official ALMA SIA2 service. It provides an extended SIA v2.0 view of all ALMA observations.
326. Official ALMA Simple Image Access (EU server at ESO)
ID:
ivo://jao.alma/sia2_eu
Title:
Official ALMA Simple Image Access (EU server at ESO)
Short Name:
ALMA SIA2 EU
Date:
06 Sep 2024 06:59:55
Publisher:
Joint ALMA Observatory (JAO)
Description:
The official ALMA SIA2 service. It provides an extended SIA v2.0 view of all ALMA observations.
327. Official ALMA Simple Image Access (NA server at NRAO)
ID:
ivo://jao.alma/sia2_na
Title:
Official ALMA Simple Image Access (NA server at NRAO)
Short Name:
ALMA SIA2 NA
Date:
06 Sep 2024 06:59:56
Publisher:
Joint ALMA Observatory (JAO)
Description:
The official ALMA SIA2 service. It provides an extended SIA v2.0 view of all ALMA observations.
328. OLD Data Evaluation Service
ID:
ivo://helio-vo.eu/mdes
Title:
OLD Data Evaluation Service
Short Name:
OLD_DES
Date:
10 May 2013 10:22:31
Publisher:
CESR
Description:
Perform searches for MDES.
329. Original Digitized Sky Survey
ID:
ivo://nasa.heasarc/skyview/dss
Title:
Original Digitized Sky Survey
Short Name:
DSS
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
This survey comprises the compressed digitization of the Southern Sky Survey and the Palomar Sky Survey E plates as distributed on CD ROM by the Space Telescope Science Institute. Coverage of the entire sky is included. This survey consists of the digititized Southern Sky Survey conducted at the UK Southern Schmidt Survey Group by the Royal Observatory, Edinburgh (prior to 1988) and the Anglo-Australian Observatory (since 1988) Additional plates covering regions with bright objects are also included. The plates were digitized at the Space Telescope Science Institute and compressed using algorithms developed by R.White. These data are distributed on a set of 101 CD-ROMs. <P> The following data are included: <DL> <DT>Southern hemisphere <DD> SERC Southern Sky Survey and the SERC J Equatorial extension. These are typically deep, 3600s, IIIa-J exposures with a GG395 filter. Also included are 94 short (1200s) V exposures typically at Galactic latitudes below 15&amp;#176;;. Special exposures are included in the regions of the Magellenic clouds. <DT>Northern hemisphere <dd> The northern hemisphere is covered by 644 plates from the POSS E survey. A special exposure of the M31 region that is distributed on the CD ROMs is not used in <i> SkyView </i>. </DL> Provenance: Data taken by ROE and AAO, CalTech, Compression and distribution by Space Telescope Science Institute.. This is a service of NASA HEASARC.
330. OSO8 A Detector Lightcurves
ID:
ivo://nasa.heasarc/oso8alc
Title:
OSO8 A Detector Lightcurves
Short Name:
OSO8ALC
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
This database accesses the FITS lightcurves obtained from the A detector part of the GSFC Cosmic X-ray Spectroscopy experiment (GCXSE) on board OSO8. The Orbiting Solar Observatory-I (OSO-8) was launched on 21 June 1975 into a 550 km circular orbit at 33 degrees inclination. While the primary objectives of the mission were solar in nature, there were 3 detectors (the GCXSE detectors A, B and C) which had exclusively non-solar objectives. The energy band was 2-60 keV for the A and C detector and 2-20 keV for the B detector. The spacecraft structure consisted of a rotating cylindrical base section called the &quot;wheel&quot; and a non-spinning upper section called the &quot;sail&quot;. The GCXSE detectors were mounted in the rotating wheel and their fields-of-view were either aligned to the spin axis (B and C) or at small angles to it (A), hence they always viewed the portion of the sky at right angles to the earth-sun line. The GCXSE detectors obtained data until late September 1978. This is a service provided by NASA HEASARC .

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