Search found 78 matches

by CDDIS_support_Lori
Wed Oct 14, 2020 4:23 pm America/New_York
Forum: Home
Question: How can I access VLBI data?
Replies: 1

How can I access VLBI data?

How can I access VLBI data at the CDDIS?
by CDDIS_support_Lori
Wed Oct 14, 2020 4:22 pm America/New_York
Forum: Home
Question: How are SLR data stored at the CDDIS?
Replies: 1

Re: How are SLR data stored at the CDDIS?

SLR data are available in subdirectories by data type, satellite, and year. The data type supported by the ILRS is on-site normal points, found in directories at https:// cddis.nasa.gov/slr/data/npt_crd.
by CDDIS_support_Lori
Wed Oct 14, 2020 4:10 pm America/New_York
Forum: Home
Question: How can I access SLR data?
Replies: 1

Re: How can I access SLR data?

Satellite laser ranging (SLR) data are available through secure ftp and other methods. SLR data since 1976 are available online. Access the SLR data via the web at https://cddis.nasa.gov/archive/slr/data/ . Detalied information and examples for using other methods can be found on our Achive Access p...
by CDDIS_support_Lori
Tue Feb 25, 2020 11:34 am America/New_York
Forum: Home
Question: IGS stations
Replies: 4

Re: IGS stations

Information on antenna files can be found at ftp://igs.org/pub/station/general/antenna_README.pdf
by CDDIS_support_Lori
Tue Feb 25, 2020 11:31 am America/New_York
Forum: Home
Question: IGS stations
Replies: 4

Re: IGS stations

More detailed information about IGS stations including site guidelines and proposing a new station can be found at igs.org/network/information.
by CDDIS_support_Lori
Fri Feb 14, 2020 12:54 pm America/New_York
Forum: Home
Question: BRDC navigation file
Replies: 1

Re: BRDC navigation file

The file https://cddis.gsfc.nasa.gov/archive/gnss/data/daily/ yyyy / ddd / yy n/brdc ddd 0. yy n.Z ( yyyy is the 4-digit year, ddd is the three-digit day of year and yy is the two-digit year) is the daily broadcast ephemeris file. This file is a merge of the individual site navigation files into one...
by CDDIS_support_Lori
Fri Feb 14, 2020 12:08 pm America/New_York
Forum: Home
Question: IGS stations
Replies: 4

Re: IGS stations

The igs.org/network/list.html web page provides a list of current IGS sites and links to their site logs; a map is also available.
by CDDIS_support_Lori
Fri Feb 14, 2020 11:49 am America/New_York
Forum: Home
Question: off-line CDDIS data
Replies: 1

Re: off-line CDDIS data

Access to GNSS data not accessible online can be requested by contacting the CDDIS manager using the "Contact Us" button at the bottom of any CDDIS website page.
by CDDIS_support_Lori
Fri Feb 14, 2020 11:38 am America/New_York
Forum: Home
Question: Data archived at CDDIS
Replies: 1

Re: Data archived at CDDIS

Users can view CDDIS daily status files, found in the daily GLONASS data directories, which detail data availability for a particular day at:

https://cddis.nasa.gov/archive/glonass/data/daily/ YYYY/DDD where YYYY is the 4-digit year and DDD is the 3-digit day of the year.
by CDDIS_support_Lori
Fri Feb 14, 2020 11:21 am America/New_York
Forum: Home
Question: Accuracy of GNSS products
Replies: 1

Re: Accuracy of GNSS products

The IGS Central Bureau maintains a table of accuracy information for the official IGS products. Additional information is available from a web page maintained by the Analysis Center Coordinator.