TLEs for NOAA-15/18/19

[Nigel Atkinson]

Dear all,

In recent years we have recommended that AAPP users get their 2-line elements (TLEs) from EUMETSAT, where possible. See the EUMETSAT web page https://service.eumetsat.int/tle/

However, it has come to our attention that the TLEs for NOAA-15/18/19 are no longer listed on that web page, and the old links contain data that has not been updated since 5th February, i.e. too old to be used in AAPP. (The TLEs are currently still OK in the Metop Admin message). EUMETSAT have confirmed that this was a planned change associated with the NOAA transition to POES Extended Life Operations.

If you retrieve your TLEs from the internet, we recommend that you continue to use the EUMETSAT site for Metop-B, Metop-C, SNPP, NOAA-20 and NOAA-21, but switch to space-track for NOAA-15/18/19. Note that https://www.space-track.org/ requires a username and password to access the data on the site. If that is a problem you can use celestrak instead (e.g. http://celestrak.org/NORAD/elements/weather.txt). If you use the AAPP tool get_tle you can configure it like this:

PAR_NAVIGATION_TLE_USER=your_username
PAR_NAVIGATION_TLE_PASSWD=your_password
export PAR_NAVIGATION_TLE_USER PAR_NAVIGATION_TLE_PASSWD

PAR_NAVIGATION_TLE_URL_DOWNLOAD='https://www.space-track.org'
PAR_NAVIGATION_TLE_CATALOGUE="25338,28654,33591" #NOAA-15,18,19
PAR_NAVIGATION_TLE_URL_DOWNLOAD+=' https://service.eumetsat.int/tle/data_out/latest_m01_tle.txt'
PAR_NAVIGATION_TLE_URL_DOWNLOAD+=' https://service.eumetsat.int/tle/data_out/latest_m03_tle.txt'
PAR_NAVIGATION_TLE_URL_DOWNLOAD+=' https://service.eumetsat.int/tle/data_out/latest_npp_tle.txt'
PAR_NAVIGATION_TLE_URL_DOWNLOAD+=' https://service.eumetsat.int/tle/data_out/latest_n20_tle.txt'
PAR_NAVIGATION_TLE_URL_DOWNLOAD+=' https://service.eumetsat.int/tle/data_out/latest_n21_tle.txt'
export PAR_NAVIGATION_TLE_URL_DOWNLOAD PAR_NAVIGATION_TLE_URL_CATALOGUE

If you require TLEs for Aqua, Terra, FY-3D and FY-3E, these can be added to the PAR_NAVIGATION_TLE_CATALOGUE entry: 27424,35994,43010,49008 respectively.

Regards,

Nigel

• This topic was modified 2 months, 2 weeks ago by Nigel Atkinson.

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