Re: Lacrosse 1 De-orbited?
Bjoern Gimle (b_gimle@algonet.se)
Thu, 27 Mar 1997 20:31:23 +0100
>A check on Lacrosse 1 possible close approaches using this elset:
>
>Lacrosse 1 18.0 4.5 0.0 3.6 v
>1 19671U 88106 B 97 67.48741065 0.00000035 00000-0 56900-5 0 07
>2 19671 56.9770 123.3157 0010000 121.2846 238.7154 14.70733585 00
>
>and Mike McCants' most recent alldat.tle with Rob Matson's Cola.exe
>yielded the results below. (Note the **0.9 km** close approach predicted
>on 30 March 1997. Also, six 94-29 and two 89-89 debris objects are listed.
>Three of the objects are other payloads. I used a maximum separation of
>8 km.) Perhaps they maneuvered Lacrosse 1 to avoid a possible collision?
A debris avoidance maneuvre is usually only changing the pass time a
few seconds, if the orbits are not co-planar. When done several days
in advance, it hardly affects the period.
------------------------------------------------------------
-- b_gimle@algonet.se +46-8-7428086 (home) --
-- 59.22371 N, 18.22857 E AND member of : --
-- http://www.algonet.se/~b_gimle seesat-l / seesat-d --
-- bjorn@tt-tech.se +46-8-59095783 (office)--
------------------------------------------------------------