Hi Jonathan, Thanks for the alert. I noticed there is a gap in the TLE's for 18911 between 1962 day 109 and 1967 day 202. Object lost in 1962 and number re-assigned in 1967? For 1967-11 Q the TLE's start in 1969 and stop in 1979. The object was administratively decayed 1982 Nov 12. 1967-14 E, 02683, has just 3 TLE's, all from 1981 day 232 to 236. It was also administratively decayed 1982 Nov 12. While compiling the RAE tables I also came across several weird TLE entries. Object 24623, Pegasus debris 1994-29 AAB, has it first TLE assigned to 96032 D, STS-77 PAMS-STU, which has # 23876. Objects 26076 and 26078 were first assigned to 2000-06 F and H, Cosmos 2369 Zenit-2 debris. They have tle's from 2000 day 37 till 2000 day 92 respectively day 37 till day 39. Then in 2005 they are re-assigned to 1999-40 E and F, Chandra IUS debris. 00519 is not 1962-17 C as listed by Spacetrack, but 1962-71 C. The name is correct on Spacetrack., Scout X-3 R/B, the 4th stage of the Transit 5A-1 launch. Several objects have TLE's from before their actual launchtime. Sometimes just shortly before, but sometimes days. There will be more weird entries, please report them if you come across them. Greetings and clear, dark skies Leo Barhorst, Medemblik NL Cospar 4252 52.76350 N 5.09114 E 2 m ASL http://www.satlist.nl/index.html ----- Original Message ----- From: "Jonathan McDowell" <jcm@head.cfa.harvard.edu> To: <seesat-l@satobs.org> Sent: Sunday, December 25, 2005 5:40 AM Subject: Object 18911 > > This is a note for satellite catalog fans. I have just noticed that > 18911 = 1967-14M, ostensibly a fragment of Diademe 2, has TLEs going back > to 1961. From its orbit, it is clearly in fact a piece of 1961 Delta = > Explorer IX. > > Also, 1967-11Q is really from the 1967-14 launch, and 02683 = 1967-14E has > only spurious TLEs (from some West Ford debris) in the archive; old > Satellite Situation > Reports from the 1960s have more plausible orbital data for it. > > I don't recall these errors being noted before, apologies if this is a > repeat. > - Jonathan > > ------------------------------------------------------------------------- > Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: > http://www.satobs.org/seesat/seesatindex.html > ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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