Skip to main content

Description

FOR 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)

Product Summary

Platforms
GRACE
Spatial Extent

N: 88 S: -88 E: 180 W: -180

Spatial Resolution
500 Kilometers x 500 Kilometers
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2002-04-04 to 2017-06-30
Data Partner
GRACE Tellus, Jet Propulsion Laboratory, NASA (NASA/JPL/GRACE-TELLUS-0001) ,
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2491772134-POCLOUD
Data State
COMPLETE
Number of Files/Granules
5491
Processing Level
1B
Published
Updated
Science Keywords
Gravity

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

JPL. (2001). GRACE LEVEL 1B JPL RELEASE 2.0 [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/GRJPL-L1B02 Date Accessed: 2025-12-14

Documents