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JPL Tellus GRACE Mascon RL06 version 1.0 Data Release

The PO.DAAC is pleased to announce the public release of the JPL Tellus GRACE Mascon RL06 version 1.0 datasets. More information regarding the GRACE mission is available from the GRACE Tellus website (https://grace.jpl.nasa.gov/mission/grace/) and also via PO.DAAC’s ...
by podaac
Tue Dec 11, 2018 5:02 pm
 
Forum: PODAAC General Announcements
Topic: JPL Tellus GRACE Mascon RL06 version 1.0 Data Release
Replies: 0
Views: 285

Extracting GRACE Inter-Satellite Range Measurements

... together such a wonderful repository and community of information and people. I am interested to retrieve actual ranging measurements between GRACE A and B (no particular epoch in mind). My research purpose is to use actual ranging measurements as validation to a GNSS-based inter-satellite ...
by samuellow
Tue Feb 26, 2019 9:43 pm
 
Forum: Data Access
Topic: Extracting GRACE Inter-Satellite Range Measurements
Replies: 6
Views: 1752

Re: Extracting GRACE Inter-Satellite Range Measurements

So I actually already found the range measurements file (or at least I think this is the right one, please tell me if it is wrong!) https://drive.google.com/open?id=1ukajiEFqxiFgAYS57G6G0SlbntaH_e8N https://drive.google.com/open?id=1m_LTLBQqUEUlS7GDawQ2d9RUr2ZR8_Fn I am specifically looking for the ...
by samuellow
Tue Feb 26, 2019 10:11 pm
 
Forum: Data Access
Topic: Extracting GRACE Inter-Satellite Range Measurements
Replies: 6
Views: 1752

Re: Extracting GRACE Inter-Satellite Range Measurements

Hi Wenhao. Thank you for the quick reply! I am using gcc on Cygwin (windows) but from the README I think the compiler seems to only run on Linux based OS's. Thus it fails to compile, throwing errors. I will attach a screenshot of the error later. I have not tried other compilers like MinGW on Window...
by samuellow
Wed Feb 27, 2019 4:33 pm
 
Forum: Data Access
Topic: Extracting GRACE Inter-Satellite Range Measurements
Replies: 6
Views: 1752

Re: Extracting GRACE Inter-Satellite Range Measurements

Thanks Wenhao! I'll try it on a Linux distro and hopefully it works. :)
by samuellow
Tue Mar 12, 2019 6:14 am
 
Forum: Data Access
Topic: Extracting GRACE Inter-Satellite Range Measurements
Replies: 6
Views: 1752

Re: Extracting GRACE Inter-Satellite Range Measurements

... could I request for anyone's help to transform KBR data for 2010-07-27 into ASCII format using the binary-to-ASCII converter that is used for GRACE? It is a one-off request and I wouldn't want to trouble anyone here otherwise, had it been so urgent for me to retrieve this data. If someone ...
by samuellow
Wed Mar 13, 2019 7:11 am
 
Forum: Data Access
Topic: Extracting GRACE Inter-Satellite Range Measurements
Replies: 6
Views: 1752

Strange Range Values in GRACE KBR Data

Dear PODAAC, Much thanks to Li Wen Hao who has helped me to retrieve the inter-satellite ranging data from GRACE A and B from the KBR1B data! I am working on precise orbit determination and also baseline determination algorithms using GNSS data processing. From Wikipedia, it ...
by samuellow
Mon Mar 18, 2019 11:24 pm
 
Forum: Data Access
Topic: Strange Range Values in GRACE KBR Data
Replies: 1
Views: 1194

Re: Extracting GRACE Inter-Satellite Range Measurements

Hi Sam, Unfortunately, you have to compile the binary-to-ASCII code in order to access the GRACE Level-1B datasets, which are in binary format. The next release (RL04), which may come out by the end of year, will be in plain ASCII format. I know it is hard to compile ...
by wenhaoli
Wed Feb 27, 2019 12:03 pm
 
Forum: Data Access
Topic: Extracting GRACE Inter-Satellite Range Measurements
Replies: 6
Views: 1752

Re: Extracting GRACE Inter-Satellite Range Measurements

... that the software is only run on Linux based OS's. Regarding to your question about using the KBR file, you can find the detail information from GRACE Level-1B handbook (ftp://podaac.jpl.nasa.gov/allData/grace/docs/Handbook_1B_v1.3.pdf). For more related GRACE info, you can visit the PO.DAAC ...
by wenhaoli
Mon Mar 04, 2019 12:21 pm
 
Forum: Data Access
Topic: Extracting GRACE Inter-Satellite Range Measurements
Replies: 6
Views: 1752

Re: How to choose GRACE solutions?

Thank you for your inquiry. You have raised a very good question. There is no a simple answer for you. To better understand the two GRACE solutions, you may visit the GRACE website for detailed information about the MASCON and OCEAN/LAND solutions. 1. https://grace.jpl.nasa.gov/data/monthly-mass-grids/ ...
by wenhaoli
Fri Jul 12, 2019 8:29 am
 
Forum: General Questions
Topic: How to choose GRACE solutions?
Replies: 1
Views: 889
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