IZ3LSV

WG3K   > ANS      13.03.25 02:26l 11 Lines 1366 Bytes #161 (0) @ AMSAT
BID : ANS068.7
Read: GUEST
Subj: Changes to AMSAT TLE Distribution for March 7, 2025
Path: IZ3LSV<DB0ERF<DK0WUE<PI8ZTM<PI8LAP<VE2PKT<VE3CGR<WW4BSA<N3HYM<WG3K
Sent: 250313/0015Z 14954@WG3K.#SMD.MD.USA.NOAM LinBPQ6.0.24

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/.

NOTICE: In an effort to minimize confusion between sources of two line element sets, AMSAT is adopting the convention of listing the USSF/NORAD Satellite Catalog name first, followed by any secondary name or names in parentheses. For example “POEM 4 (BGS ARPIT)” was added recently where “POEM 4” is the name that appears in the US Space Force Satellite Catalog, and “BGS ARPIT” is the name best known within the amateur satellite community. Expect name changes for affected satellites in the coming weeks as this change is fully implemented.

The following satellite has been deleted from this weekâ€Ös AMSAT TLE distribution:

FO-118 NORAD Cat ID 54684 Decayed from orbit on or about 6 March 2025

[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the above information.]



Read previous mail | Read next mail