Re: Discrepancy

From: T.S. Kelso via Seesat-l <>
Date: Sat, 3 Jul 2021 23:58:12 -1000

I had initially designated the OneWeb launch as 2021-060 in the SupTLEs, based upon actual launches. However, when we started receiving the 18 SPCS TLEs, they showed 2021-061. Neither Jonathan nor I can account for any missed launch that would support the difference, but the 18 SPCS SATCAT is incomplete at this point. I would expect there will be some adjustment soon, but it may not occur until after the end of the US holiday on Tuesday.  - TS

Dr. T.S. Kelso

> On 2021 Jul 03, at 22:59, Russell Eberst via Seesat-l <> wrote:
> There seems to be a dangerous discrepancy evolving over designations.
> In recent launches, the designations used vary according to which source is accessed.
> The  OneWeb launch of July 1 (inc = 87°.4) is called 2021-60xx by Jonathan  and Bob,
> It's called 2021-61xx by spacetrack and celestrak.
> The next launch, Jilin (inc = 97°.5) is called 2021-61xx by Jon and Bob, and called
> 2021-62xx by spacetrack and celestrak.
> This disparity needs to be addressed before many more launches continue this divergence.
> I would like to know which designations should be used when reporting observations of
> these and upcoming satellites?
> best wishes
> Russell
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Received on Sun Jul 04 2021 - 04:59:02 UTC

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