Op 14-5-2020 om 23:21 schreef Bob Christy via Seesat-l: > I dragged out some earlier work and messages (2012 vintage) from the Seesat-L list relating to OTV/X-37B launch windows. > > There are some notes here together with a possible explanation of the apparently inconsistent launch windows from day to day. > > https://www.zarya.info/Diaries/US/OTV-6Window.php Thank you Bob, that is an interesting analysis! Below are elsets for the four possible launch times you mention for May 16: OTV 6 launch at 16 May 2020 12:24:00 UT 1 70002U 20999A 20137.51666666 .00000000 00000-0 00000-0 0 06 2 70002 044.0000 307.5927 0007426 053.7602 324.3170 15.71363518 04 OTV 6 launch at 16 May 2020 13:15:00 UT 1 70003U 20999A 20137.55208333 .00000000 00000-0 00000-0 0 04 2 70003 044.0000 320.3776 0007426 053.7602 324.3170 15.71363518 00 OTV 6 launch at 16 May 2020 14:06:00 UT 1 70004U 20999A 20137.58749999 .00000000 00000-0 00000-0 0 06 2 70004 044.0000 333.1625 0007426 053.7602 324.3170 15.71363518 06 OTV 6 launch at 16 May 2020 14:53:00 UT 1 70005U 20999A 20137.62013888 .00000000 00000-0 00000-0 0 03 2 70005 044.0000 344.9447 0007426 053.7602 324.3170 15.71363518 09 It remains to be seen what the exact value of the orbital inclination will be (it could be a few tenths of a degree different from the 44.0 value I used here) so keep potential cross-track error in mind when using these elsets. - Marco ----- Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. e-mail: sattrackcam_at_langbroek.org Station (b)log: http://sattrackcam.blogspot.com Twitter: _at_Marco_Langbroek ----- _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Thu May 14 2020 - 18:16:00 UTC
This archive was generated by hypermail 2.3.0 : Thu May 14 2020 - 23:16:00 UTC