This my second attempt to post this item....... ------- Forwarded message follows ------- From: Self <bob@zarya.info> To: SeeSat-L@satobs.org Subject: Re: Strange TLE for 02-024X Date sent: Fri, 24 May 2002 07:35:38 -0000 I have been observing one of the objects from this launch by "another means" whose name I dare not speak in this discussion list. I can confirm the identification of one of them. Fengyun 1D has consistently produced observations that fit the object identified by NORAD as "PAYLOAD B", ie 2002-24B/27431. Until May 20, passes of Fengyun On 23 May 2002 at 23:31, Michael McCants wrote: > Ed Light wrote: > > >The last 5 TLEs from OIG for the 02-024 objects, given below, display > >some very perplexing behavior - most easily seen by looking at the > >mean motions - especially for 27430 and 27433. Has anyone a clue as > >to what caused this? Exotic maneuvering? Bookkeeping error? > > Ed Cannon and I have been watching the three main objects for > the last few nights. Based on slightly different brightnesses, > I believe that the original elset for Payload A was for the > Hai Yang 1 and for Payload B was for Feng Yun 1D. > > Hai Yang 1 > 1 27430U 02024A 02142.64934828 .00000242 00000-0 16357-3 0 148 > 2 27430 98.8036 193.3182 0014882 173.3167 186.8200 14.09327826 1064 > > Feng Yun 1D > 1 27431U 02024B 02143.14736603 -.00000263 00000-0 -12638-3 0 116 > 2 27431 98.8015 193.8011 0015344 166.9971 193.1599 14.09141609 1147 > > The Long March (27432) is tumbling with a period of about 0.54 seconds. > It is bright and spectacular. The elsets for 27431 and 27432 have > been consistent. > > There were no new elsets for 27433 for a couple of days. I was > unable to find an object at the location of the old elset. > Last night I was able to observe a relatively faint (magnitude > 7 or so in strong moonlight) object (at 3:13UT May 23) that > matches the 14.224 elsets: > > 1 27433U 02024D 02142.77626556 .00008616 00000-0 38830-2 0 110 > 2 27433 98.8008 193.4767 0002449 122.6165 237.5265 14.22433817 1076 > 1 27433U 02024D 02143.06215256 .00006886 00000-0 31083-2 0 136 > 2 27433 98.8000 193.7624 0002845 112.6268 270.6367 14.22430678 1125 > 1 27433U 02024D 02143.19831918 .00006373 00000-0 28781-2 0 142 > 2 27433 98.8000 193.8983 0002782 112.4082 247.7387 14.22432327 1148 > 1 27430U 02024A 02143.50000000 .00005896 00000-0 26645-2 0 173 > 2 27430 98.8000 194.1997 0002639 108.8289 355.2809 14.22435326 1172 > 1 27433U 02024D 02143.55002491 .00001432 00000-0 64259-3 0 151 > 2 27433 98.8013 194.2505 0005818 131.9413 228.2745 14.22454859 1195 > 1 27430U 02024A 02143.69059312 .00005896 00000-0 26643-2 0 160 > 2 27430 98.8000 194.3900 0002640 108.2647 251.2791 14.22437589 1204 > > The 14.228 elset also matches: > > 1 27430U 02024A 02143.71921758 .00207776 00000-0 89773-1 0 157 > 2 27430 98.8102 194.4368 0010768 95.9942 50.7862 14.22856854 1218 > > So it is certainly possible that this piece of debris has a small > enough mass that it could have a high drag like this. This is a > "non-standard" elset since the perigee plus mean anomaly does not > add up to about 360 degrees. > > The 14.25 elsets give a prediction about 70 seconds later than > my observation: > > 1 27433U 02024D 02143.62023431 .00001428 00000-0 60925-3 0 168 > 2 27433 98.7861 194.3309 0014836 202.2008 157.9016 14.25059165 1205 > 1 27430U 02024A 02143.90108459 .00122329 00000-0 51214-1 0 208 > 2 27430 98.7992 194.6064 0012128 189.1582 170.9388 14.25125583 1249 > 1 27430U 02024A 02144.11171509 .00016806 00000-0 71637-2 0 213 > 2 27430 98.7967 194.8171 0011320 188.7367 171.3600 14.25107402 1276 > > It is possible that there is another debris object here? > > Mike McCants > Austin, TX > > ----------------------------------------------------------------- > Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' > in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org > http://www2.satellite.eu.org/sat/seesat/seesatindex.html > > ------- End of forwarded message ------- ---------------------------------- Bob Christy Kettering Group ---------------------------------- bob@zarya.info http://www.zarya.info ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/sat/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Fri May 24 2002 - 12:23:40 EDT