Here are new NROL-47 elsets, for launch tonight (11 January 21:00 UT): First, taking the launch azimuth at face value (resulting in a 108.6 degree inclined orbit), for two altitude variants, one ~1500 km orbital altitude and one for a FIA-like ~1100 km orbital altitude: NROL-47 1495 X 1505 1 70000U 18999A 18011.87500000 .00000000 00000-0 00000-0 0 07 2 70000 108.6398 114.0196 0006347 166.4011 308.2684 12.41559515 04 NROL-47 1100 X 1110 1 70001U 18999A 18011.87500000 .00000000 00000-0 00000-0 0 08 2 70001 108.5831 114.0196 0006682 166.4011 304.1188 13.41149813 09 Second, two more altrenative elset (for the same two altitude variants) that assume an inclination-changing manoeuvre into a 123.0 degree inclined FIA-like orbit upon first nodal passage: NROL-47 ALT 1495 X 1505 1 70004U 18999A 18011.88958333 .00000000 00000-0 00000-0 0 08 2 70004 123.0000 114.0319 0006347 179.9597 359.9483 12.41559515 04 NROL-47 ALT 1100 X 1110 1 70005U 18999A 18011.88648148 .00000000 00000-0 00000-0 0 09 2 70005 123.0000 114.0483 0006682 180.0080 359.9441 13.41149813 00 For more background details, see my earlier postst here: http://www.satobs.org/seesat/Jan-2018/0080.html ...and here: http://www.satobs.org/seesat/Jan-2018/0089.html - Marco ----- Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. e-mail: sattrackcam_at_langbroek.org Cospar 4353 (Leiden): 52.15412 N, 4.49081 E (WGS84), +0 m ASL Cospar 4355 (Cronesteyn): 52.13878 N, 4.49937 E (WGS84), -2 m ASL 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 Jan 11 2018 - 05:47:56 UTC
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