Re: How Many Bright Satellites?

From: Anthony Mallama via Seesat-l <seesat-l_at_satobs.org>
Date: Sun, 23 Feb 2020 09:39:06 -0500
Thanks, Cees. Those are impressive numbers!

Tony Mallama


On Sunday, February 23, 2020, C. Bassa <cgbsat_at_gmail.com> wrote:

> On Sun, Feb 23, 2020 at 3:04 PM Anthony Mallama via Seesat-l
> <seesat-l_at_satobs.org> wrote:
> > However, additional birds are becoming difficult to find. Any estimates
> of
> > how many there are?
>
> Going through the observations that are posted on the SeeSat mailing
> list, there are just over 2700 unique objects with at least 10
> observations reported. This is using only IOD observations (of which
> there are 328000) and excluding objects with NORAD IDs larger than
> 46000. Hence some of the 96XXX and 99XXX objects that we track are not
> included. Also, some of the objects in this list will no longer be in
> orbit, so treat this as a rough estimate.
>
> Regards,
>     Cees
>
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Received on Sun Feb 23 2020 - 08:39:55 UTC

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