Now NET 0227 UTC. On Sat, 23 Jun 2018, 09:33 Robert Holdsworth <robbonz_at_gmail.com> wrote: > Rocketlab has now posted it is targeting launch no earlier earlier than > 0050 UTC. > Robert > > On Sat, 23 Jun 2018, 07:01 Dr. T.S. Kelso via Seesat-l < > seesat-l_at_satobs.org> wrote: > >> Based on the sail deployment time/state vector provided in the >> spreadsheet, I obtain the following TLE fit: >> >> 22 Jun 2018 08:55:48 >> Satellite-NABEO >> >> >> Reference Trajectory Sampling >> ----------------------------- >> Start Time (UTCG) Stop Time (UTCG) Time Step (sec) >> ------------------------ ------------------------ --------------- >> 23 Jun 2018 02:13:21.000 24 Jun 2018 02:13:21.000 300.000 >> >> >> Fit Summary >> ----------- >> Initial RMS (km) Final RMS (km) Iterations # of Obs >> ---------------- -------------- ---------- -------- >> 2.112101 0.348057 2 289 >> >> >> Two Line Element Set >> -------------------- >> 1 99999C 18174.09260417 .00023585 00000-0 10608-2 0 00008 >> 2 99999 084.9992 273.8258 0013516 288.0032 306.9608 15.21097829000019 >> >> Note that I do not have any data for area-to-mass or attitude, so this >> TLE would not be expected to be a good fit for very long after the >> deployment. It also assumes a nominal launch/deployment. - TS >> >> Dr. T.S. Kelso >> CelesTrak, https://celestrak.com >> E-Mail: ts.kelso_at_celestrak.com<mailto:ts.kelso_at_celestrak.com> >> >> On 2018 Jun 22, at 08:45, Robert Holdsworth via Seesat-l < >> SeeSat-L_at_satobs.org<mailto:SeeSat-L_at_satobs.org>> wrote: >> >> It should be noted that the time given is the opening of the launch window >> which extends to 0430 UTC. >> Launch broadcast at http://www.rocketlabusa.com/live-stream >> Weather forecast looks good for launch, fine with some wind but probably >> not enough that high altitude winds will be an issue. >> Robert >> >> >> >> >> On Sat, 23 Jun 2018, 06:25 Derek C Breit via Seesat-l < >> seesat-l_at_satobs.org<mailto:seesat-l_at_satobs.org>> >> wrote: >> >> I would attempt this given a TLE Search set if visibility is possible from >> the SF Bay Area, CA.. >> >> Derek >> >> -----Original Message----- >> From: Seesat-l [mailto:seesat-l-bounces+breit_ideas= >> poyntsource.com_at_satobs.org<mailto:poyntsource.com_at_satobs.org>] On Behalf >> Of Dr. T.S. Kelso via Seesat-l >> Sent: Friday, June 22, 2018 10:24 AM >> To: Seesat List >> Subject: Fwd: Optical tracking De-Orbit Sail >> >> Please see the message below regarding a request for optical tracking of >> today’s planned Electron launch with NABEO. - TS >> >> Dr. T.S. Kelso >> CelesTrak, https://celestrak.com >> E-Mail: ts.kelso_at_celestrak.com<mailto:ts.kelso_at_celestrak.com><mailto: >> ts.kelso_at_celestrak.com> >> >> Begin forwarded message: >> >> From: Thomas Sinn <sinn_at_hps-gmbh.com<mailto:sinn_at_hps-gmbh.com><mailto: >> sinn_at_hps-gmbh.com>> >> Subject: Optical tracking De-Orbit Sail >> Date: 2018 June 22 at 01:38:55 HST >> To: "TS.Kelso_at_celestrak.com<mailto:TS.Kelso_at_celestrak.com><mailto: >> TS.Kelso_at_celestrak.com>" < >> TS.Kelso_at_celestrak.com<mailto:TS.Kelso_at_celestrak.com><mailto: >> TS.Kelso_at_celestrak.com>> >> Cc: "Langer, Martin" <martin.langer_at_tum.de<mailto:martin.langer_at_tum.de >> ><mailto:martin.langer_at_tum.de>> >> >> Dear Mr. Kelso, >> I got your email address from martin Langer of the Technical University of >> Munich as we are having a joint project on a dragsail >> technology demonstrator that will be launched tomorrow morning with the >> Electron 3 rocket of Rocket Lab. We should get downlink data >> of the sail deployment but is a risk that the aluminium coated foil blocks >> the signal of the antenna. >> Therefore we came up with the idea to maybe try to see if someone in the >> amateur astronomy community would like to give it a try to >> get a picture of the sail (2.5m2 sail area in a 500km orbit) from the >> ground once the dragsail is deployed (1.5hr after launch >> (launch currently scheduled at 0:30 UTC on the 23rd of June). >> More infos to the sail (NABEO): www.hps-gmbh.com/ADEO< >> http://www.hps-gmbh.com/ADEO>/< >> http://www.hps-gmbh.com/ADEO/> >> >> Please find attached the state vector for the deployment (according to the >> current launch time (TBD)). We though maybe you have >> someone in mind that would be interested to try to get a nice picture of >> the kick-stage with the dragsail once its orbiting the >> earth. >> >> >> Kind regards, >> Thomas >> >> --------------------------- >> Dr. Thomas Sinn >> Deployable Structures: Project Manager & System Engineer >> >> HPS GmbH >> Hofmannstr. 25-27 >> 81379 München >> Germany >> >> >> >> phone: +49 89 452057672 >> fax: +49 89 452057699 >> sinn_at_hps-gmbh.com<mailto:sinn_at_hps-gmbh.com><mailto:sinn_at_hps-gmbh.com> >> http://www.hps-gmbh.com >> >> CEO: Dr.-Ing. Ernst K. Pfeiffer >> CFO: Dipl.-Ing. Peter Rauhut >> HRB 185249, AG München >> --------------------------- >> >> _______________________________________________ >> Seesat-l mailing list >> http://mailman.satobs.org/mailman/listinfo/seesat-l >> >> >> --- >> This email has been checked for viruses by AVG. >> https://www.avg.com >> >> >> _______________________________________________ >> Seesat-l mailing list >> http://mailman.satobs.org/mailman/listinfo/seesat-l >> >> _______________________________________________ >> Seesat-l mailing list >> http://mailman.satobs.org/mailman/listinfo/seesat-l >> >> _______________________________________________ >> 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 Fri Jun 22 2018 - 19:55:47 UTC
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