# Re: Unidentified objects

From: Björn Gimle (b_gimle@algonet.se)
Date: Tue Feb 25 2003 - 15:39:21 EST

• Next message: Leo Barhorst: "Obs Feb 25 (with Gorizont 23)"

```> Time is in decimals of a day
> Motion is relative to the RA/Dec system not the Earth's surface.
>
>  ID       Yr   M  dd.dddddUT  RA         Dec               Mag   C Site
> P006CC   C2003 02 23.36248 11 22 33.04 +24 39 06.9          09.9 R 333
> P006CC   C2003 02 23.36329 11 23 24.44 +24 10 18.9          10.0 R 333
> motion = 648.76 degrees/day, PA = 157.89
> P006CD   C2003 02 23.36460 11 15 21.05 +22 10 07.6          11.2 R 333
> P006CD   C2003 02 23.36539 11 16 33.32 +21 27 56.8          11.5 R 333
> P006CD   C2003 02 23.36613 11 17 44.10 +20 46 15.3          11.6 R 333
> motion = 994.45 degrees/day, PA = 158.35
> P006D3   C2003 02 23.36230 11 22 20.78 +24 45 40.0          09.8 R 333
> P006D3   C2003 02 23.36308 11 23 11.31 +24 17 46.7          10.1 R 333
> Total rate = 648.34 degrees/day, PA = 157.6
>

I find it really curious to find three objects at nearly the same
position (of course that's where he was observing) within 4 minutes and
at roughly at the same magnitude, AND two of them at "exactly" the same
speed of motion, all of them moving in the same direction (if PA is
Position Angle)

The middle object matches (16 sec.early):
1 22517U 93010F   03042.91923586 -.00000055 +00000-0 +10000-3 0 05791
2 22517 065.9319 002.1641 0014589 254.9964 104.8417 02.13409324077818

P006CC and P006D3 appear to be the same object, close to 89-01E but at
only 2/3 the speed, indicating a range of about 23000 km.
1 19753U 89001E   03050.40739340 -.00000049  00000-0  10000-3 0  7661
2 19753  66.0234   3.6051 0015500 238.6721 121.1908  2.13162745110301

-- bjorn.gimle@tietotech.se (office)                         --
-- b_gimle@algonet.se (home)  http://www.algonet.se/~b_gimle --
-- COSPAR 5919, MALMA,    59.2576 N, 18.6172 E, 23 m         --
-- COSPAR 5918, HAMMARBY, 59.2985 N, 18.1045 E, 44 m         --

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```

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