Re: full video of last nights unid

From: C. Bassa via Seesat-l <seesat-l_at_satobs.org>
Date: Fri, 1 Aug 2014 16:50:38 +0200
Hi Kevin,

Thanks for the video; from it I obtained the measurements below.

This is unknown 140303 [99099/14562A]; an earlier unknown I found in
March and tracked for a few days. We then lost it until you saw it as
a UNID on April 12; http://www.satobs.org/seesat/Apr-2014/0136.html

There is significant curvature in the arc and hence the orbital
elements are very well constrained to the following:

1 99099U 14562A   14213.17475958  .00000000  00000-0  20000-3 0    09
2 99099  21.4811 183.0832 3497563 347.3744 118.5441  8.58660049    09
# 20140801.17-20140801.18, 57 measurements, 0.017 deg rms

Using the SGP4/SDP4 model to propagating the April 12th orbit to the
above epoch yields similar values for RAAN, eccentricity and mean
motion.

1 99099U 14562A   14213.17475958  .00000000  00000-0  00000-0 0    04
2 99099  21.5303 182.4200 3512066 259.6286 190.1526  8.89593343    06

As the perigee of the orbit is very low the drag is quite high. The
mean motion will increase with time while the eccentricity
decreases. For comparison, the April 12 orbit (111 days ago) had 6.61
revs/day mean motion and an eccentricity of 0.458.

Regards,
   Cees

99099 14 562A   1775 G 20140801040241423 17 25 2056168-065590 37 S
99099 14 562A   1775 G 20140801040247363 17 25 2057114-065632 37 S
99099 14 562A   1775 G 20140801040257339 17 25 2058592-065723 37 S
99099 14 562A   1775 G 20140801040307367 17 25 2100077-065802 37 S
99099 14 562A   1775 G 20140801040317343 17 25 2101531-065877 37 S
99099 14 562A   1775 G 20140801040327353 17 25 2102970-065974 37 S
99099 14 562A   1775 G 20140801040337346 17 25 2104419-070059 37 S
99099 14 562A   1775 G 20140801040347423 17 25 2105859-070173 37 S
99099 14 562A   1775 G 20140801040357216 17 25 2107253-070267 37 S
99099 14 562A   1775 G 20140801040457443 17 25 2115648-070947 37 S
99099 14 562A   1775 G 20140801040507469 17 25 2117008-071083 37 S
99099 14 562A   1775 G 20140801040537499 17 25 2121051-071468 37 S
99099 14 562A   1775 G 20140801040547510 17 25 2122390-071620 37 S
99099 14 562A   1775 G 20140801040557520 17 25 2123713-071768 37 S
99099 14 562A   1775 G 20140801040647603 17 25 2130225-072508 37 S
99099 14 562A   1775 G 20140801040657563 17 25 2131516-072667 37 S
99099 14 562A   1775 G 20140801040707590 17 25 2132780-072834 37 S
99099 14 562A   1775 G 20140801040717633 17 25 2134062-072997 37 S
99099 14 562A   1775 G 20140801040727626 17 25 2135333-073211 37 S
99099 14 562A   1775 G 20140801040737603 17 25 2136934-073682 37 S
99099 14 562A   1775 G 20140801040817710 17 25 2141512-074043 37 S
99099 14 562A   1775 G 20140801040827670 17 25 2142734-074211 37 S
99099 14 562A   1775 G 20140801040837646 17 25 2143935-074402 37 S
99099 14 562A   1775 G 20140801040957760 17 25 2153450-075978 37 S
99099 14 562A   1775 G 20140801041007787 17 25 2154601-080161 37 S
99099 14 562A   1775 G 20140801041017780 17 25 2155764-080363 37 S
99099 14 562A   1775 G 20140801041027790 17 25 2156929-080580 37 S
99099 14 562A   1775 G 20140801041037734 17 25 2158051-080785 37 S
99099 14 562A   1775 G 20140801041047844 17 25 2159183-081001 37 S
99099 14 562A   1775 G 20140801041057820 17 25 2200324-081226 37 S
99099 14 562A   1775 G 20140801041227944 17 25 2210298-083245 37 S
99099 14 562A   1775 G 20140801041237903 17 25 2211376-083462 37 S
99099 14 562A   1775 G 20140801041248030 17 25 2212709-083629 37 S
99099 14 562A   1775 G 20140801041317943 17 25 2215667-084409 37 S
99099 14 562A   1775 G 20140801041327970 17 25 2216731-084662 37 S
99099 14 562A   1775 G 20140801041337997 17 25 2217991-084867 37 S
99099 14 562A   1775 G 20140801041437907 17 25 2224034-090386 37 S
99099 14 562A   1775 G 20140801041448050 17 25 2225075-090642 37 S
99099 14 562A   1775 G 20140801041458377 17 25 2226126-090904 37 S
99099 14 562A   1775 G 20140801041508003 17 25 2227105-091162 37 S
99099 14 562A   1775 G 20140801041538067 17 25 2230142-091935 37 S
99099 14 562A   1775 G 20140801041548010 17 25 2231144-092209 37 S
99099 14 562A   1775 G 20140801041558504 17 25 2232180-092465 37 S
99099 14 562A   1775 G 20140801041618157 17 25 2234156-092992 37 S
99099 14 562A   1775 G 20140801041628184 17 25 2235136-093237 37 S
99099 14 562A   1775 G 20140801041638244 17 25 2236131-093519 37 S
99099 14 562A   1775 G 20140801041647520 17 25 2237058-093775 37 S
99099 14 562A   1775 G 20140801041658414 17 25 2238107-094057 37 S
99099 14 562A   1775 G 20140801041708190 17 25 2239058-094346 37 S
99099 14 562A   1775 G 20140801041718467 17 25 2240079-094604 37 S
99099 14 562A   1775 G 20140801041748464 17 25 2242960-095427 37 S
99099 14 562A   1775 G 20140801041758274 17 25 2243910-095711 37 S
99099 14 562A   1775 G 20140801041808017 17 25 2244851-095977 37 S
99099 14 562A   1775 G 20140801041818211 17 25 2245819-100270 37 S
99099 14 562A   1775 G 20140801041847823 17 25 2248634-101083 37 S
99099 14 562A   1775 G 20140801041858418 17 25 2249616-101396 37 S
99099 14 562A   1775 G 20140801042037033 17 25 2258785-104261 37 S
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Received on Fri Aug 01 2014 - 09:51:30 UTC

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