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Dataset

GFZ GRACE-FO-1 Rapid Science Orbits (version 2)

Cite as:

Schreiner, Patrick; König, Rolf; Abrykosov, Oleh; Neumayer, Karl Hans; Flechtner, Frank (2022): GFZ GRACE-FO-1 Rapid Science Orbits (version 2). GFZ Data Services. https://doi.org/10.5880/GFZ_ORBIT/RSO/L64_G_v02

Status

I   N       R   E   V   I   E   W : Schreiner, Patrick; König, Rolf; Abrykosov, Oleh; Neumayer, Karl Hans; Flechtner, Frank (2022): GFZ GRACE-FO-1 Rapid Science Orbits (version 2). GFZ Data Services. https://doi.org/10.5880/GFZ_ORBIT/RSO/L64_G_v02

Abstract

This dataset provides Rapid Science Orbits (RSO) from the Low Earth Orbiter (LEO) satellite GRACE-FO-1. It is part of the compilation of GFZ RSO products for various LEO missions and the appropriate GNSS constellation in sp3 format. The individual solutions for each satellite mission are published with individual DOI as part of the compilation (Schreiner et al., 2022).

• The GRACE-FO RSO cover the period:
- from 2019 049 to up-to-date

The LEO RSOs in version 2 are generated based on the 30-hour GPS RSOs in two pieces for the actual day with arc lengths of 14 hours and overlaps of 2 hours. One starting at 22:00 and ending at 12:00, one starting at 10:00 and ending at 24:00. Due to the extended length of the constellation, there is no need to concatenate several constellations for day-overlapping arcs. The accuracy of the LEO RSOs is at the level of 1-2 cm in terms of SLR validation.

Each solution in version 2 is given in the Conventional Terrestrial Reference System (CTS) based on the IERS 2010 conventions and related to the ITRF-2014 reference frame. The exact time covered by an arc is defined in the header of the files and indicated as well as in the filename.

Additional Information

Orbital products describe positions and velocities of satellites, be it the Global Navigation Satellite System (GNSS) satellites or Low Earth Orbiter (LEO) satellites. These orbital products can be divided into the fastest available ones, the Near Realtime Orbits (NRT), which are mostly available within 15 to 60 minutes delay, followed by Rapid Science Orbit (RSO) products with a latency of two days and finally the Precise Science Orbit (PSO) which, with a latency of up to a few weeks, are the most delayed. The absolute positional accuracy increases with the time delay.

Authors

  • Schreiner, Patrick;GFZ German Research Centre for Geosciences, Potsdam, Germany
  • König, Rolf;GFZ German Research Centre for Geosciences, Potsdam, Germany
  • Abrykosov, Oleh;GFZ German Research Centre for Geosciences, Potsdam, Germany
  • Neumayer, Karl Hans;GFZ German Research Centre for Geosciences, Potsdam, Germany
  • Flechtner, Frank;GFZ German Research Centre for Geosciences, Potsdam, Germany

Contact

Contributors

GFZ German Research Centre for Geosciences, Section 1.2

Keywords

Level-3, Satellite Geodesy, Low Earth Orbiter, Orbit, GRACE-FO, GPS, RSO, Tracking, Occultation, Satellite Laser Ranging, SLR

GCMD Science Keywords

  • EARTH SCIENCE > SOLID EARTH > GEODETICS
  • Earth Observation Satellites > NASA Decadal Survey > GRACE II
  • Earth Observation Satellites > SATELLITES
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Photon/Optical Detectors > Cameras > GRACE SCA
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > AIRCRAFT MOTION SENSOR
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GNSS
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GNSS RECEIVER
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GNSS-RO RECEIVER
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GPS
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GPS CLOCKS
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GPS RECEIVERS
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > RO
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GYROS
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Laser Ranging
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Laser Ranging > GRACE LRR
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Laser Ranging > LASER REFLECTOR
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Laser Ranging > LASER TRACKING REFLECTOR
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Laser Ranging > SLR
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Radio > HAIRS
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Radio > INS
  • Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Radio > USO

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    License: CC BY-NC 4.0

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