Brightness variation of NROL-101 Centaur

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 24 Nov 2020 17:08:17 +0100
Op 21-11-2020 om 18:29 schreef Marco Langbroek via Seesat-l:

> After analysis of my imagery, I get a period of ~140 seconds (=2m 20s) from data
> between 03:36:00 - 03:43:08 UT.


Based on video observations in the night of Nov 22/23, I can now offer a
slightly more precise value of (nominally) 138.02 seconds peak-to-peak.

This is based on a 23-minute near continuous set of video data between 23:36 and
23:59 UT (Nov 22), covering 10 brightness peaks, taken with a WATEC 902H2
Supreme and Samyang 1.4/85 mm lens.

Curve:

https://sattrackcam.blogspot.com/2020/11/brightness-variation-of-nrol-101.html

The brightness varied semi-regularly between mag +6.0 and +8.5. Given the range
and phase angles, this corresponds to an absolute magnitude between +2.0 and +4.5.

- Marco


-----
Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
e-mail: sattrackcam_at_langbroek.org

Station (b)log: http://sattrackcam.blogspot.com
Launchtower:    http://launchtower.langbroek.org
Twitter: _at_Marco_Langbroek
-----
_______________________________________________
Seesat-l mailing list
http://mailman.satobs.org/mailman/listinfo/seesat-l
Received on Tue Nov 24 2020 - 10:09:28 UTC

This archive was generated by hypermail 2.4.0 : Tue Nov 24 2020 - 16:09:28 UTC