Hi Bjorn, You'll probably have already seen that your observations match the two elsets of Object D [43218/18020D] best. JSpOC has published only two elsets for object D: Epoch: Orbit: 18053.65423199 (15:42:06UT) 495km x 516km _at_ 97.46 deg 18053.65952442 (15:49:43UT) 211km x 517km _at_ 97.27 deg This confirms that object D is indeed the Falcon 9 R/B of which you an others have observed either the fuel dump or the de-orbit burn. Given that the Broadcast Warning de-orbit area is located at latitudes of 33 to 50 degrees in the Pacific, the most efficient de-orbit burn would've been half an orbit earlier, indicating you observed the fuel dump. However, it is also possible that the upperstage had surplus performance to de-orbit later. Regards, Cees _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Sat Feb 24 2018 - 07:57:09 UTC
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