GRACE LEVEL 1B JPL RELEASE 2.0

GRACE LEVEL 1B JPL RELEASE 2.0
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DOI10.5067/GRJPL-L1B02
Short NameGRACE_L1B_GRAV_JPL_RL02
DescriptionFOR EXPERT USE ONLY. The GRACE Level 1B data provide all necessary inputs to derive monthly time variations in the Earth's gravity field. Level 1B data are also used for GRACE orbit and mean gravity field determination. It contains K-Band Ranging Data Product (KBR1B), Star Camera Data Product (SCA1B), Accelerometer Data Product (ACC1B), GPS Data Product (GPS1B), Vector Products (VGN1B, VGO1B, VGB1B, VCM1B, VKB1B, VSL1B), Quaternion Products (QSA1B, QSB1B), and Housekeeping Products (AHK1B, IHK1B, THR1B, TNK1B, MAG1B, MAS1B, TIM1B)
Version2
Dataset TypeOPEN
MeasurementSOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > GRAVITY
Processing Level1B
CoverageRegion: Global
Northernmost Latitude: 88 degrees
Southernmost Latitude: -88 degrees
Westernmost Longitude: -180 degrees
Easternmost Longitude: 180 degrees
Time Span: 2002-Apr-04 to 2017-Jun-30
ResolutionSpatial Resolution: 500 km (Along) x 500 km (Across)
ProjectionType: Spherical
Detail: N/A
Ellipsoid: WGS 84
Latency hours
Swath Width-1 km
Sample Frequency-
Temporal Repeat (Nominal)1 Month
Temporal Repeat (Min)-
Temporal Repeat (Max)-
Platform/Sensor
GRACE
Platform
Name: Gravity Recovery and Climate Experiment (GRACE)
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
Platform
Name: Gravity Recovery and Climate Experiment (GRACE)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE SCA
SENSOR
Name: Star Camera Assembly (GRACE SCA)
Swath Width: - km
Description: The two star cameras mounted close to the accelerometer on each satellite provide the precise attitude references for the satellites when making science measurements.

GRACE
Platform
Name: Gravity Recovery and Climate Experiment (GRACE)
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

ProjectGravity Recovery and Climate Experiment (GRACE)
Data ProviderCreator: GRACE
Release Place: JPL
Release Date: 2001-Sep-01
Resource: https://podaac-tools.jpl.nasa.gov/drive/files/allData/grace/docs/
Keyword(s)gravity
Persistent IDPODAAC-GRJPL-L1B02
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation GRACE. 2001. GRACE LEVEL 1B JPL RELEASE 2.0. Ver. 2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GRJPL-L1B02.

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For more information see Data Citations and Acknowledgments.

Journal Reference K. Case, G. Kruizinga, and S. Wu, 2002, GRACE Level 1B Data Product User Handbook, JPL Publication D-22027. https://podaac-tools.jpl.nasa.gov/drive/files/allData/grace/docs/Handbook_1B_v1.3.pdf