Re: A train of NOSS satellites

From: Leo Barhorst via Seesat-l <seesat-l_at_satobs.org>
Date: Mon, 2 Dec 2019 10:31:25 +0100
Björn,

I observed this also in the last 2 weeks. Also from 38758/38773 and 28095.

On Nov 19th between 18:54 and 19:01.
37386 and 37391 from 18:54:34 to 18:55:00
26907 from 18:57:44 to 18:58:02
26905 from 18:59:14 to 18:59:32
23862 from 19:00:27 to 19:00:40
After the 1st and 2nd obs the camera was moved a little to be sure to
capture the next sat.
The 3 FOV's overlap; see the star patterns.
The sats were on parallel tracks.

On the 22nd the sats wer even closer.
37386 and 37391 from 16:38:49 to 16:39:08
26907 from 16:40:34 to 16:40:45
The sats passed the same FOV on parallel tracks about 2 deg apart.

The next pass was also imaged between 18:30:42 and 18:32:36 and showed the
same.

3.5 minutes later 26905 and 23862 were imaged between 18:36:09 and 18:37:06
on parallel tracks.

A similar "show" was observed between 19:19:53 and 19:22:22 when
38773/38758 were followed by
28095 less than 2 minutes later on a almost same track

On the 25th the show was even better.
Between 17:04:43 and 17:05:09 28095, 38758 and 38773 were next to each
other in the same FOV.
From 18:08 to 18:13 37386/37391 and 26905 passed 3.5 minutes apart on much
wider parallel tracks.

On Nov 30th between 18:06 and 18:15 obs were made in the same FOV of 4 NOSS
sats on parallel tracks
one orbit earlier than Björn.
26907 from 18:06:18 to 18:06:46
37391/37386 between 18:09:26 and 18:10:06 on almost same track as 26907
26905 between 18:14:38 and 18:14;46 some 2 degrees lower in the sky.
Didn't image 23936 and 23862 as the camera was in fixed position and they
passed outside FOV.

For the full obs reports see my mails to Seesat-L.

Björn I wiil send you the images in a direct mail not via Seesat-L.
Others interested in the images, send a private email to
leobarhorst_at_gmail.com

Best wishes,
Leo


Op zo 1 dec. 2019 om 23:52 schreef Björn Gimle via Seesat-l <
seesat-l_at_satobs.org>:

> I captured only the 37391/37386 pair. The others should have been within
> the field, and the time window !
> #37391 (the leader) was beginning to brighten to the right of Vega, and was
> even brighter 40s later.
> --------------------------------------------------------
> Björn Gimle, COSPAR 5919
> 59.2617 N, 18.6169 E, 51 m
> Satellite observation formats described:
> http://www.satobs.org/position/IODformat.html
> ---------------------------------------------------------
>
>
> Den sön 1 dec. 2019 kl 18:08 skrev Björn Gimle <bjorn.gimle_at_gmail.com>:
>
> > Yesterday I found a prediction never seen (by me) train of NOSS
> satellites.
> > #23936,26907,37391,37386,26905 and 23862 were predicted to ascend from
> > WNW, entering shadow just below Cephei or higher 19:50:38 to 20:01:00 UT:
> > I imaged the area 19:51 (!) to 20:03, but found none !!
> >
> > Tonight I have a similar prediction 19:06 to 19:17, but there appears to
> > be more clouds.
> > --------------------------------------------------------
> > Björn Gimle, COSPAR 5919
> > 59.2617 N, 18.6169 E, 51 m
> > Satellite observation formats described:
> > http://www.satobs.org/position/IODformat.html
> > ---------------------------------------------------------
> >
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> http://mailman.satobs.org/mailman/listinfo/seesat-l
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Received on Mon Dec 02 2019 - 09:31:25 UTC

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