Re: Debris?

JAY RESPLER (jrespler@superlink.net)
Wed, 14 Apr 1999 23:55:59 -0400

Edward S Light wrote:
> In the past week, we've seen three "debris" objects (using 7x50 and
> 10x50 binoculars) that we weren't looking for ...
>     Object         UTC Date/Time     Apparent      "Quicksat"
>                                     Magnitude    Intrinsic Mag
> 07174=73-086EL   1999 04 06/00:20     7.6            5.9
> 07160=73-086DY   1999 04 13/00:21     5.5            3.7
> 08978=75-004BL   1999 04 13/00:21     4.8            4.7
> I have a question regarding their observed brightness ... I've usually
> assumed that "debris" means small and faint and therefore unlikely to be
> seen in binoculars at our fairly light-polluted sight. Has anyone seen
> these objects recently? Are our brightness estimates at all reasonable?

This is the reason I worked to get RCS added to the SatSit Rept.  There's
normally no way to know how large debris is.  The RCS value, while not exact,
is a good guide to the probability of seeing an object. There are some debris
pieces that can be seen with binoculars. 

Here are a couple I just observed.

QUICKSAT output B:
***  1999 Apr  14  Wed morning  *** Times are AM EDT  ***  2022  532
 H  M  S  Tim Al Azi C Dir  Mag Dys F  Hgt Shd  Rng  EW Phs  R A   Dec
23483 9485G deb rcs.8 
 1 27 15   .0 52 287 69 22.3=10.3 3 0 1181  99 1403  .6  63 1034  40.6 
saw5sec v? 

HIGHFLY:
*** 1999 Apr 13/14   Tue evening/Wed morning  *** Times are EDT 
Hrs Min  Azi  El  Mag    Hgt    R  A    Dec  Range
25500 98025F rc.8                M 3.5 ELDY  3 M214197
 4  18  350  33  4.7=6.2 385  8 11.8  79.2    646 
 4  17 26 saw 4sec

-- 
Jay Respler
--
           JRespler@superlink.net 
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