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SS-6 (R-7)Sapwood Block-E upper stage of Cosmos 1005_HR-OBS,Okean 01-7 hig res ,ERS-2 Image 2010/08/24(UT)
Ralf Vandebergh(250mm Newton)|
August 24, 2010 2:06 PM
Subject: Sapwood Block-E upper stage of Cosmos 1005_HR-OBS
On August 21, there was a fine opportunity to capture a low orbital
pass of an almost legendary heavy used type of upper stages, used
for the modified SS-6 Sapwood or R-7 rocket, originally a
Intercontinental ballistic missile.
Okean 01-7 hig res OBS
I was quite surprised by the appearance of this spacecraft when I first saw
the frames; a widely resolved body with 2 bright ends and a fainter mid-part,
The object (here in a 85° W culm pass, so imaged near to closest distance)
appears considerably large for a distance over 600km.
For an approximate comparison; ERS-2, which I captured with the same imaging-
scale a few minutes later, appeared not much bigger then one of the 2 brighter
ends in the Okean image.
Another surprise was found during research when I found that the Okean satellite
is one of the few objects with no Wikipedia article involved yet...There is still
sufficient information available on the specialized sites but I'm still searching
for information about dimensions of this spacecraft.
Mass of the satellites should be 1,950 kg (4,290 lb). The later types were the Sich.
The captured Okean 7 is launched in 1994.
ERS-2 23560 1995-021-A) high res OBS, Aug 24
European remote sensing satellite 2 (ERS 2) captured during a
79.6° WSW pass on Aug 24 in good seeing conditions.
The elongated shape of the body is visible well and was
visible in all frames at least during closest approach.
ERS-2 is the successor of the ERS-1 and was launched 1995
from French Guiana with an Ariane. It's gyroscopes are
not working since early 2001 while the tape drive aboard
failed on June 22, 2003. Due to this problem the satellite
is now only operational in sight of a ground station.
Earth Radiation Budget Satellite (ERBS)_high res OBS_Aug 24
-Earth Radiation Budget Satellite
-Study of Earth's radiation budget and stratospheric aerosol gases.
This satellite can be seen as a heritage of Space Shuttle Challenger. It was
deployed in 1984 during mission STS-41-G by Sally Ride, well-known as the
first American woman in space, just one year earlier. The satellite used an own
Orbit Adjust Propulsion System (OAPS) to move to its operating orbit after
deployment from the Shuttle. Originally intended to have a 2-year operational
live, it finally just retired in 2005 for butgetary reasons.
Earlier attempts to photograph the satellite during a series of morning-passes
in June, failed to resolve more then a small speck. It seems to be a hard object
in less then optimal passes, even at considerable imagingscales. The latest
attempt on August 24 during a favorable almost 80 degrees evening-pass succeeded
to capture a well-defined shape. The images can be interpreted to show a body and
solar panels seen from a certain observingangle as most frames show comparable
structure. Presented are 2 of the best ones. Exact interpretation however is
difficult to determine.
[Ralf Vandebergh:Neighbourhood of Maastricht Netherlands]