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WG3K > ANS 13.04.25 05:40z 14 Lines 1919 Bytes #13 (0) @ AMSAT
BID : ANS096.5
Read: GUEST
Subj: Changes to AMSAT-NA TLE Distribution for April 4, 2025
Path: SR8BBS<SR4BBX<DB0RES<DB0ERF<DK0WUE<PI8ZTM<GB7RJJ<VK5LEX<W0ARP<N3HYM<
K5DAT<WW6Q<WG3K
Sent: 250406/0320Z 15953@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 satellites have been added to this week's AMSAT TLE distribution:
JINJUSat 1B NORAD Cat ID 63210 Downlink 435.185 MHz
NUSHSAT 1 NORAD Cat ID 63211 Downlink 436.200 MHz
DRAGON Fram2 NORAD Cat ID 63427 Downlink 437.550 MHz
Please note that the elements provided for "DRAGON Fram2" are provided by the US Space Force, while "Fram2Ham" are derived from state vectors provided by SpaceX and converted to TLE by ARISS. AMSAT TLE for "Fram2Ham" continue to use the provisional object number 90000. There is no practical difference between the element sets for Amateur Radio use. Hats off to SpaceX for a precision orbital injection, the inclination of this polar orbit is 90.00 degrees.
[ANS thanks AMSAT Orbital Elementshttps://www.amsat.org/keplerian-elements-resources/ page for the above information]
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