Launch now rescheduled to 1855 UTC. Webcast http://www.ulalaunch.com/webcast.aspx Robert On 8 June 2016 at 12:51, Ted Molczan via Seesat-l <seesat-l_at_satobs.org> wrote: > NROL-37 is scheduled for launch from CCAFS on a Delta-IV-Heavy, on 2016 June 09. The launch period is from 17:30 to > 22:30 UTC. Lift-off is scheduled for 17:59 UTC. > > http://spaceflightnow.com/2016/06/08/d374_journal/ > > The launch azimuth indicates a GEO mission, which for an NRO heavy-lift launch, means the second stage will perform > three burns to place the payload directly into an inclined GEO orbit. > > The payload probably is Mentor 7 (aka Advanced Orion 7). > > Below are estimated orbital elements, based on an on-time launch. Epoch corresponds to the approximate end of a burn. > > SECO 1 190 X 244 km > 1 77799U 77799A 16161.75819212 .00656932 00000-0 21234-3 0 07 > 2 77799 28.7000 350.7368 0040859 90.0000 38.0000 16.22456322 09 > > SECO 2 212 X 35809 km > 1 77799U 77799A 16161.76697919 .00000000 00000-0 00000-0 0 00 > 2 77799 26.5000 350.6682 7298000 180.0000 0.0000 2.28000000 01 > > SECO 3 35746 X 35830 km > 1 77799U 77799A 16161.98567123 .00000000 00000-0 00000-0 0 07 > 2 77799 5.0000 350.5864 0010000 180.1373 179.8600 1.00270000 02 > > Allow for cross-track errors of at least several degrees, and time errors of several minutes. > > The longitude at insertion into GEO will be close to 96 E. Contrary to the SECO 3 TLE, the mean motion is likely to be > somewhat more or less than synchronous, depending whether the planned destination is east or west of 96 E. Inclination > in GEO could be between about 3 and 7 deg. > > Estimated standard visual magnitude in LEO and GTO is 4 +/-2 (1000 km range, 90 deg phase angle). Once fully deployed in > GEO, the payload will typically be near magnitude 8. The Delta IV 5m 2nd stage typically reaches mag 9 to 12 at GEO > range. > > Ted Molczan > > > _______________________________________________ > 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 Thu Jun 09 2016 - 13:09:55 UTC
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