The NRO just posted a tweet indicating that NROL-82 "is targeted for no-earlier-than April 25, 12:39-15:57PDT". https://twitter.com/NatReconOfc/status/1381648189267271680 This launch window correspond to 19:39 to 22:57UTC, and for a sun-synchronous is consistent with the Eastern plane of KH-11 satellites, currently occupied by only USA 224 [37348/11002A]. With the NROL-65 launched which places USA 245 [39232/13043A] into orbit on August 28, 2013, many European observers were fortunate enough to observe the payload and Delta IV upper stage on their first orbit after launch. The launch time and lighting conditions are favorable that should NROL-82 be launched into a similar orbit (e.g. apogee around 1000km at 30 deg North latitude), it would again be visible from Europe. Regards, Cees _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Mon Apr 12 2021 - 12:02:28 UTC
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