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 - 16:34:17 UTC
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