You're absulutely right. When re-reading my posting I came to the same conclusion, but hadn't time to send a correction to seesat-l Greetings Leo -----Oorspronkelijk bericht----- Van: Gene A Heyler [mailto:gene.heyler@jhuapl.edu] Verzonden: donderdag 15 mei 2003 15:14 Aan: L.J.C.Barhorst@arcadis.nl Onderwerp: Re: Alexis and RB Leo, Actually, since MM is in orbits/day, I think it's 92.08 days, not orbits, that it takes to catch up. In those 92 days, spacecraft makes 1317 orbits, and rocket makes 1316 orbits. Thanks, Gene Heyler Columbia Maryland USA ---------------------------------------------------------------------- Using TLE's provided by Kevin Fetter Alexis 1.0 0.0 0.0 8.3 d 1 22638U 93026A 03133.97863882 0.00000200 00000-0 73375-4 0 06 2 22638 69.9174 77.5674 0063000 175.9237 184.0762 14.31614905 00 Alexis Rk 3.0 1.0 0.0 7.4 d 1 22639U 93026B 03134.04816247 0.00000200 00000-0 74812-4 0 06 2 22639 69.9160 95.0989 0066000 190.3891 169.6109 14.30533072 08 The differance in MM is 0.01085978 This means that after 1 / 0.01085978 = 92.08 orbits Alexis catches up again with its rocket. For 92 orbits it uses 92.08 / 14.31 = 6.43 days So they will catch up on eachother every 6.43 days; presuming the MM's don't change. But they do due to friction of the upper atmosphere. Greetings Leo Barhorst ---------------------------- DISCLAIMER ----------------------------- De informatie verzonden met dit e-mail bericht is uitsluitend bestemd voor de geadresseerde. Openbaarmaking, vermenigvuldiging, verspreiding en/of verstrekking aan derden is niet toegestaan. Gebruik van deze informatie door anderen dan de geadresseerde is verboden. U wordt verzocht bij onjuiste adressering de afzender direct te informeren door het bericht te retourneren. The information sent by means of this e-mail message is intended only for the use of the addressee. Publication, duplication, distribution and/or forwarding to third parties of this message, as well as use of the information by other persons than the intended recipient, is strictly prohibited. If you have received this communication in error, please notify the sender immediately by returning it. ----------------------------------------------------------------- To unsubscribe from SeeSat-L, send a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@satobs.org List archived at http://www.satobs.org/seesat/seesatindex.html
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