RE: 20547 PegSat Rk

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Richard,

The R.A.E. Table of Satellites describes 90028B as a polyhedron with an
estimated diameter of 0.45 m. That is consistent with the current RCS (radar
cross section) value of 0.2203 m^2, in OIG's satellite catalogue.

I estimate that an object of that size would be around magnitude 8 or 9 on a
favourable pass, making it a difficult object to see with 50 mm aperture
optics.

Ted Molczan

> For the past two weeks, I have been trying to see Pegsat Rk
> (id# 20547,
> 90028B) without much success. Quicksat typically gives a
> magitude of 4.5
> and a time uncertainty of 0.1 minute. Normally don't have
> this much trouble
> seeing a sat like this using 10X50 binoculars. Anyone else have any
> observations to share?
>
> Richard Hines
> Lexington, SC
>
>

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