75105A, Molniya 3-03 second observation 3/23/94

From: <DJLaszlo_at_aol.com>
Date: Sat, 25 Mar 1995 01:37:49 -0500
bdp@mpe.mpe-garching.mpg.de

Hi, Bart,

I have a second observation of a flashing satellite which fits 75105A,
Molniya 3-03:

Observer: Daniel Laszlo
Date: March 23 1995 0223 to 0230 UT
Station Location: Fort Collins, Colorado, USA. Latitude 40 degrees, 30
minutes, Longitude 105 degrees, 3minutes.
Instrument:  300mm f/5 Newtonian reflector, alt/azimuth mount, 32mm Plossl,
field 1.1deg
Sky location:  Note, satellite was not seen on three previous nights attempts
with 11x80 binoculars, searching between 3 Monocerotis and Epsilon
Monocerotis.  Satellite was not seen on first observation attempt tonight
with the telescope as it passed 3 Monocerotis, predicted azimuth 204.4 deg,
elevation 35.5 deg.  It was seen, within 2 minutes of prediction, as it
passed between Epsilon Monocerotis and SAO 113683(star magnitude 5.8), within
0.5 degree of predicted azimuth 204.9 degrees, elevation 51.8 degrees.
Direction: Initially nearly vertical, up with respect to horizon, increasing
westward trend, with estimated less than .2 degree west trend per 1 degree
vertical over this period.
Rate of motion:  About 3.5 flash periods per field, yields approximately 1
degree per 40 seconds.
Flash period: 5 cycles, peak to peak, in 60 seconds, +/- 0.5 seconds, yields
period 12.0 sec +/- 0.1 seconds.
Flash description:  Two minor flashes, approx mag 10, at 1 and 0.5 sec before
onset of major flash.  Major flash with symmetrical crescendo/decrescendo
over 1 second, peak approximately magnitude 8.
Acknowledgments:  Thanks to Jeff Brower for providing the 4K elsets for the
search, and then providing the name for 75105A; thanks to Mike Prochoda for
the foresight to note the time of passage on March 5 by the Rosette Nebula
cluster NGC 2244 , which made the initial identification possible.
Summary of two observations in standard format:

Station Location:  1 mile northwest of Briggsdale Colorado USA lat 40:40N;
long 104:22W (longitude corrected from prior report)
75-105 A 95-03-05 03:54:00 DJL 11 1.0 1 11

Station Location:  Fort Collins Colorado USA latitude 40:30N; longitude
105:03W
75-105 A 95-03-23 02:23:00 DJL 60 0.5 5 12.0

75105  A
1 08425U 75105  A 95062.15677405  .00000810  00000-0  44132-3 0  7774
2 08425  61.8112  93.0691 7409631 273.1556  12.7798  2.00677298141413
Best Regards, DL
Received on Sat Mar 25 1995 - 01:54:30 UTC

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