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HP2DFA > AMSAT 27.09.26 18:16l 42 Lines 2043 Bytes #999 (0) @ WW
BID : 2474_HP2DFA
Read: OE5RCO GAST
Subj: Changes to AMSAT TLE Distribution for September 25, 2026
Path: DB0FFL<DB0FHN<DB0RKB<DK0WUE<HB9ON<HB9ON<PI8ZTM<PY2BIL<HP2DFA
Sent: 260927/1400Z 2474@HP2DFA.#COL.PAN.CEAM BPQ6.0.24
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Changes to AMSAT TLE Distribution for September 25, 2026
Two Line Elements or TLEs, often referred to as Keplerian elements or keps
in the amateur community, are the inputs to the SGP4 standard mathematical
model of spacecraft orbits used by most amateur tracking programs. Weekly
updates are completely adequate for most amateur satellites. TLE bulletin
files are updated daily in the first hour of the UTC day. New bulletin
files will be posted immediately after reliable elements become available
for new amateur satellites. More information may be found at
https://www.amsat.org/keplerian-elements-resources/
https://www.amsat.org/keplerian-elements-resources/.
This week there are no additions or deletions to the AMSAT Keps
distribution.
General Perturbations Data Support
AMSAT is pleased to announce that modern forms of what are called General
Perturbations data are being disseminated via modern formats including
JSON, XML and KVN at https://newark192.amsat.org/gpdata/current/. The
reason this change is being made is that we are running out of 5-digit
catalog numbers and the TLE format is not viable for satellites launched
after July of this year. See
https://celestrak.org/NORAD/documentation/gp-data-formats.php for details.
These data are presently considered in beta test for the next two months
while hosted on the test server newark192.amsat.org, and we are very open
to community feedback at webmaster at amsat.org. Testers may experience
outages and errors while we make improvements. We intend to put this into
production on our main web server in July as we expect that satellites
launched after this summer will require one of the new formats to
accommodate longer object numbers. AMSAT will continue to publish TLE
bulletins for satellites launched before July 2026 indefinitely.
*[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the
above information]*
73 de Omar HP2DFA from Colon Panama.
PMAIL: HP2DFA@HP2DFA.COL.PAN.CEAM
EMAIL: HP2DFA@GMAIL.COM
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