> > It had been my understanding that both spacecraft always manoeuvred within a > few hours of each other, though I have not fully confirmed this myself. My > prediction of 26 April as the most likely manoeuvre date for both objects, was > based on USA 116's perigee having precessed to the equator on that date, but I >... > When I have some free time, I will analyze this possibility. I need to make ... I don't have it either, but this is an easy one, since we have good elsets for USA 129 before and after. ... > A one day interval between their manoeuvres would have changed this by about 10 minutes. >... Indeed - if USA 116 manoeuvred on Apr.26, my observations were off by ten minutes, and could not have been of USA 116. Running COLA/ALLCOLA on five elsets before against three after (and stabilized), all fifteen "collisions" occur near the perigee at about 22:00 UT on Apr.26. Other oddities are : It manoeuvred later in the evening, so it was not on an orbit previously passing over the Rocky Mountains, but near the Date Line. All close encounters computed are 21:50 to 22:14, well before the perigee. I see no trace of that comparing the elsets. -- bjorn.gimle@tietotech.se (office) -- -- b_gimle@algonet.se (home) http://www.algonet.se/~b_gimle -- -- COSPAR 5919, MALMA, 59.2615 N, 18.6206 E, 33 m -- -- COSPAR 5918, HAMMARBY, 59.2985 N, 18.1045 E, 44 m -- -- SeeSat-L / Visual Satellite Observer Home Page found at -- -- http://www2.satellite.eu.org/satintro.html -- ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
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