GRACE-FO Level-1B Release version 4.0 from JPL in ASCII

GRACE-FO Level-1B Release version 4.0 from JPL in ASCII
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DOI10.5067/GFL1B-ASJ04
Short NameGRACEFO_L1B_ASCII_GRAV_JPL_RL04
DescriptionFOR EXPERT USE ONLY. The GRACE-FO Level-1B data provide all necessary inputs to derive monthly time variations in the Earth gravity field. Level-1B data are also used for GRACE orbit and mean gravity field determination. For a detailed description, please see the GRACE-FO Level-1 documentation.
Version4
Dataset TypeOPEN
MeasurementSolid Earth > GRAVITY/GRAVITATIONAL FIELD > Gravity
Processing Level1B
CoverageRegion: Global
Northernmost Latitude: 89 degrees
Southernmost Latitude: -89 degrees
Westernmost Longitude: -180 degrees
Easternmost Longitude: 180 degrees
Time Span: 2018-May-22 to Present
ResolutionSpatial Resolution: 0 km (Along) x 0 km (Across)
ProjectionType: Spherical
Detail: N/A
Ellipsoid: WGS 84
Latency hours
Swath Width-1 km
Sample Frequency-
Temporal Repeat (Nominal)-
Temporal Repeat (Min)-
Temporal Repeat (Max)-
Platform/Sensor
GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE-FO ACC
SENSOR
Name: GRACE-FO SuperSTAR Accelerometer (GRACE-FO ACC)
Swath Width: -1 km
Description: The accelerometer, located at the center of mass of each satellite, measures all non-gravitational forces acting on each satellite. These forces include air drag, solar radiation pressure, and attitude control activator operation.

GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE-FO KBR
SENSOR
Name: GRACE-FO K-Band Ranging System (GRACE-FO KBR)
Swath Width: -1 km
Description: This instrument precisely measures the changes in the separation between the two GRACE satellites using phase tracking of K- and Ka-band signals sent between the two satellites

GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE-FO LRI
SENSOR
Name: GRACE-FO Laser Ranging Interferometer (GRACE-FO LRI)
Swath Width: -1 km
Description: The laser ranging interferometer (LRI) on board GRACE-FO measures the distance between the two satellites

GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE-FO SCA
SENSOR
Name: GRACE-FO Star Camera Assembly (GRACE-FO SCA)
Swath Width: -1 km
Description: The SCA (Star Camera Assembly) consists of three temperature controlled CCD star cameras mounted to the accelerometer, along with the respective baffle assemblies. The STR delivers its video frames to the OBC, which then computes the attitude quaternions. The OBC also acts as the power and command/control interface to the STR. Once switched on and initialized, the STR proceeds with automatic coarse attitude acquisition and then on to fine attitude derivation.

ProjectGRACE Follow-On (GRACE-FO)
Data ProviderCreator: GRACE-FO
Release Place: JPL
Release Date: 2019-May-30
Resource: https://podaac-tools.jpl.nasa.gov/drive/files/allData/gracefo/docs/
Keyword(s)GRACE-FO, GFO, gravity, RL04
Persistent IDPODAAC-GFL1B-ASJ04
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
User's Guide
Level-1 Handbookhttps://podaac-tools.jpl.nasa.gov/drive/files/allData/gracefo/docs/GRACE-FO_L1_Handbook_JPL-D-56935_20190726.pdf
GRACE-FO Level 1B Data Product User Handbook
Additional Sites
GRACE-FO Projecthttps://gracefo.jpl.nasa.gov/
GRACE-FO Mission Page
Citation GRACE-FO. 2019. GRACE-FO Level-1B Release version 4.0 from JPL in ASCII. Ver. 4. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GFL1B-ASJ04.

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For more information see Data Citations and Acknowledgments.

Journal Reference Wen, Kruizinga, Paik, Landerer, Bertiger, Sakumura, Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) Level-1 Data Product User Handbook, JPL Publication D-56935, ftp://podaac-ftp.jpl.nasa.gov/allData/gracefo/docs/GRACE-FO_L1_Handbook_JPL-D-56935_20190521.pdf