Re: 80-008B tumbling? plus a couple of other items

Tristan Cools (
Sun, 23 Mar 1997 21:18:23 +0100 (MET)

>>Q decreases at higher MM. For elliptic orbits, Q is much higher,
>>but seldom more than 2*(16.6-MM)
>Using King-Hele's definitions, Lifetime = Q/ndot
>Elsets give you ndot2 which is half ndot, so Lifetime = Q/(2*ndot2)
>Q is about about 0.1 rev/day for a circular orbit at 16.2 revs/day MM
>(mean motion). However, at 15.8 revs/day (as per this object) it is
>closer to 0.14 (using King-Hele's graphs).

I do not possess that graph of King-Hele.  Can someone (Alan, Bjorn) give us
some Q-values for changing mean motions and exentricities ?

Tristan Cools
BWGS member(Belgian Working Group Satellites)

Damse Vaart:    3.2478E/51.2277N 3.75m
Rijckevelde:    3.2856E/51.2045N 6.25m
Brugge     :    3.2166E/51.2104N 5m