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originally posted by: wildespace
How do threads like this get resurrected?
It's a great find, though. I can't give the OP a star, but I gave him a flag. It's a very interesting feature, if it's really there.
The shadow of the object in the first image gives a hint of the shape of the object. Here's the image flipped around and skewed to compensate for the sun angle, so that the shadow represents the object.
I thought right angles does not exist in nature?
The first of four scheduled rendezvous burns was attempted on December 20, 1998 at 22:00 UT. The burn sequence was initiated but immediately aborted. The spacecraft subsequently entered safe mode and began tumbling. The spacecraft's thrusters fired thousands of times during the anomaly, which expended 29 kg of propellant reducing the program's propellant margin to zero. This anomaly almost resulted in the loss of the spacecraft due to lack of solar orientation and subsequent battery drain. Contact between the spacecraft and mission control could not be established for over 24 hours. The root cause of this incident has not been determined, but software and operational errors contributed to the severity of the anomaly.[6]
These simulations show that the fault protection actions should have ended the attitude anomaly quickly.
ak9.picdn.net...
originally posted by: skyblueworld
Hi ATS,
EROS is a stony and elongated asteroid of the Amor group and the first discovered and second-largest near-Earth object with a mean-diameter of approximately 16.8 kilometers. Visited by the NEAR Shoemaker space probe in 1998.