Tiros 10 debris C appears to be surfing on the atmosphere, or something almost as strange has happened at NORAD/NASA. Yesterday's 5 last elsets are issues 938-941, and 944. Where are 942-943 ? Even more peculiar is the negative MMdot2 for the two latest, and the fact that MM appears to have remained almost constant for day 45-51, though MMdotdot6 is positive (but too small ?) The three "normal" elsets show a change of 0.06 in MM for one day, which means that MMdot2 is already underestimated. These three elsets, with some older back to day 37, and my extrapolation program, give a decay on day 46. Element set number = 2 1 01440U 65051C 95051.32470887 -.00001005 31792-5 00000+0 0 9448 2 01440 98.4960 22.7446 0042798 156.8994 203.5306 16.32979416594649 Element set number = 1 1 01440U 65051C 95047.28016830 -.00001008 31875-5 00000+0 0 9414 2 01440 98.4960 17.3661 0042798 173.1298 186.8020 16.32971672593985 Element set number = 4 1 01440U 65051C 95044.89145857 .02818928 31687-5 82801-3 0 9401 2 01440 98.5731 14.1263 0027353 207.3725 159.7831 16.26134615593980 Element set number = 3 1 01440U 65051C 95044.64477829 .01633879 31475-5 71876-3 0 9393 2 01440 98.5384 13.8321 0009872 164.9806 195.0943 16.22322688593947 Element set number = 5 1 01440U 65051C 95043.90435809 .01522750 31178-5 79187-3 0 9380 2 01440 98.5185 12.8175 0018295 225.0313 137.1199 16.19857332593825 Here are some decay notes/estimates : Need more elsets: 23471 23472 23473 23475 23497 23499 Already decayed ? : 2/12? 22998 2/15? 01440 2/16? 23072 2/18? 23478 ? 14199 Decaying soon : 2/25 22995 2/28 23474 3/03 21868 3/04 22994 3/10? 20927 3/16 23498 3/18 23102 4/10? 23453 4/16 21190 5/ 22278 Highly elliptic orbits, for which I do not extrapolate: E 14130 E 21045 E 21058 E 21555 E 23015 E 23306