Resurs 1-4 r, a peculiar tumbler
Walter Nissen (dk058@cleveland.freenet.edu)
Tue, 28 Jul 1998 20:57:22 -0400 (EDT)
Kurt Jonckheere writes:
> How many periods have you timed and what are the timings ?
I guess you want me to break down:
98- 43 G 98-07-24 4:01:52.8 WN 43.9 .8 3 14.64 __', Resurs 1-4 r,
25400, initially S near Arcturus, then began to dim
briefly, sub-periods 6.75s + 7.89s = 14.64s
minima measured as much more precise than M maxima
98- 43 G 98-07-26 3:14:39.4 WN 44.6 1. 3 14.86 __', Resurs 1-4 r,
25400, initially S to well past C, then began
brief dips, sub-periods 6.38s + 8.48s = 14.86s
minima measured as much more precise than M maxima
The intervals were, respectively:
6.92 8.04 7.15 8.23 6.19 7.40 -and-
8.26 6.53 7.67 5.49 9.50 7.13
each beginning at the specified time.
These things are tricky to measure as the dips become progressively deeper as
the object heads North. You can't measure the maxima accurately, and the
minima become more and more speculative once they become invisible.
But the pattern is unmistakable.
Kurt mentions other Zenits which appeared different in different parts of the
sky:
> E.g. see ppas 94- 23 B, 94-06-23 TC : only var(FF) low in NE
I can't remember such an object which displayed brief dips, let alone
progressively deeper dips.
Cheers.
Walter Nissen dk058@cleveland.freenet.edu
-81.8637, 41.3735, 256m elevation
---
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