New Geosync Flasher
This object was found by Daniel Karcher on 27 Feb 2000.
He made five CCD obs from 18:24:01 to 18:39:26 UTC.
He wrote: mag 9.5 ,phase 82 deg (first obs) ... in absence
of visually obs, ist not possible to say if this
geo is varying, or flashing
longitude : about 8 deg EAST
Igor Lissov wrote:
--------------------------------------------------------------------
Date forwarded: Sun, 14 Mar 1999 10:10:29 -0800 (PST)
Send reply to: <icosmos@dol.ru>
From: "Igor Lissov" <icosmos@dol.ru>
To: <SeeSat-L@blackadder.lmsal.com>
Subject: Re: 98001 found
Date sent: Sun, 14 Mar 1999 21:04:29 +0300
Forwarded by: SeeSat-L@blackadder.lmsal.com
Hi,
On 25 Feb 1999, Mike McCants wrote:
>
> Hi Rob,
[snip]
> >This information should be sufficient for one of our experts
> >to refine the orbit.
>
> Yes, but since none of them are currently available, I'll give it a try:
>
> DSP
> 1 98001U 99055.13914366 .00000000 00000-0 00000+0 0 01
> 2 98001 4.3200 58.4266 0012000 85.6064 274.3935 1.00274000 09
[snip]
The bird is over approx. 145 deg W. According to the list of active DSPs
I've posted Feb.13, this one is DSP F14 (USA-39, 1989-046A, 20066)
launched on 14 Jun 1989 by Titan 402/IUS. Until mid-1996, it was
located at approx. 165 deg W.
Other known/active DSPs are at approximately:
DSP F15 USA 65 1990-095A 20929 37W
DSP F16 USA 75 1991-080B 21805 8E
DSP F17 USA 107 1994-084A 23435 103E
DSP F18 USA 130 1997-008A 24737 69E
Igor Lissov
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So, Daniel's object seems to be DSP F16.
I found it March 01 18:10 UTC flashing to mag 7, FP 2.47 seconds
invisible between flashes with my 8" SCT.
The flash period is close to Mike's 2.51 seconds for DSP 14 (98001),
confirming that Daniel's object is another DSP and according to
Igor's table this is DSP 16.
At 18:17 UTC DSP 16 was covered by clouds (still flashing).
At 22:21 UTC I found it again, now mag 11 steady.
Around 22:55 UTC several very bright flashes were seen (mag 6?)
Last observed at 23:03 UTC, again mag 11 steady.
Elset from six obs, made with Elcor and Fitelem:
2
47.8033 -7.3417 705. Daniel Karcher
53.7695 -9.6626 30. Rainer Kracht
DSP 16 (USA 75)
1 21805U 91080B 00060.00000000 .00000000 00000-0 00000+0 0 02
2 21805 3.9715 73.3993 0004867 168.4309 284.1922 1.00270562 04
1 00 2 27 18 24 1.0 5 20.9 -6.56 1950 1.0 mag 9.5
1 00 2 27 18 39 26.0 5 36.3 -6.26 1950 1.0
2 00 3 1 18 10 4.8 5 20.3 -7.08 2000 0.5 flashing to mag 7
2 00 3 1 18 18 58.0 5 29.2 -6.93 2000 0.1 flashing to mag 7
2 00 3 1 22 43 37.5 9 54.3 -3.44 2000 0.5 mag 11 S
2 00 3 1 23 3 7.0 10 13.9 -3.35 2000 1.0 mag 11 S
0 0
1 58 18 24 1.0 .0 5 20.9 -6.56 5 20.9 -6.56 .00 .00 .00 7
1 58 18 39 26.0 .0 5 36.3 -6.25 5 36.3 -6.26 .00 -.01 .01 11
2 61 18 10 4.8 -2.1 5 20.3 -7.08 5 20.3 -7.08 .00 .00 .00 6
2 61 18 18 58.0 -3.0 5 29.2 -6.92 5 29.2 -6.93 .00 -.01 .01 9
2 61 22 43 37.5 .0 9 54.3 -3.43 9 54.3 -3.44 .00 -.01 .01 75
2 61 23 3 7.0 .0 10 13.9 -3.35 10 13.9 -3.35 .00 .00 .00 80
Rainer
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This archive was generated by hypermail 2b29 : Thu Mar 02 2000 - 04:50:23 PST