From c7245bc7404f01122d7e8dc9d24b430245a50b71 Mon Sep 17 00:00:00 2001 From: Dale May Date: Sat, 5 Dec 2020 21:47:48 -0600 Subject: [PATCH] Upate URL to Ephemeris data The US government has discontinued the anonymous ftp server. Update readme file with the new URL. --- README.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/README.md b/README.md index 06b03c6..b4e7700 100644 --- a/README.md +++ b/README.md @@ -43,9 +43,9 @@ The user is also able to assign a static location directly through the command l The user specifies the GPS satellite constellation through a GPS broadcast ephemeris file. The daily GPS broadcast ephemeris file (brdc) is a merge of the -individual site navigation files into one. The archive for the daily file is: - -[ftp://cddis.gsfc.nasa.gov/gnss/data/daily/](ftp://cddis.gsfc.nasa.gov/gnss/data/daily/) +individual site navigation files into one. The archive for the daily file can +be downloaded from: https://cddis.nasa.gov/archive/gnss/data/daily/. Access +to this site requires registration, which is free. These files are then used to generate the simulated pseudorange and Doppler for the GPS satellites in view. This simulated range data is