Watched the ISS, Proton rb and Nauka on a morning twilight pass in the SW from Coonabarabran (-31.30S, 149.16E) between 20:06-20:16UT. At 20:12UT, the Proton rb trailed the ISS by 3m32s and Nauka trailed the ISS by 4m02s. All were steady brightness in the SW: ISS mag -1.5 Proton rb +1 Nauka mag 0 until the Proton rb got very low in the south where it displayed smooth brightness variations of around 2 mag. I timed four consecutive minima and the three intervening maxima, giving a peak to peak of 10.4 +/- 1sec. The mid of the three maxima was at 20:14:37UT. Cheers, Rob On 21/07/2021 22:32, Marco Langbroek via Seesat-l wrote: > Op 22-7-2021 om 00:03 schreef Marco Langbroek via Seesat-l: >> >> With two guests I observed the ISS, followed by two bright objects (Proton rb >> and Nauka) and three fainter debris objects near the first bright object (Proton >> rb), in a partly clouded sky. > > Here is video of the Proton rb and the 3 associated debris pieces zipping > through the sky: > > https://vimeo.com/577794152 > > From Leiden, the Netherlands, with a WATEC 902H2 Supreme and Zeiss 1.4/35 mm lens. > > They were very fast, as can be seen from the video. > > - Marco > > > ----- > Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. > e-mail: sattrackcam_at_langbroek.org > > launchtower: http://launchtower.langbroek.org > Station (b)log: http://sattrackcam.blogspot.com > Twitter: _at_Marco_Langbroek > ----- > _______________________________________________ > Seesat-l mailing list > http://mailman.satobs.org/mailman/listinfo/seesat-l _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Wed Jul 21 2021 - 22:35:56 UTC
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