October 5, 2011

My prediction for ROSAT re-entry

My prediction for ROSAT re-entry.
With in 20 days +-13 days !! :(

DLR information for ROSAT re-entry
The time and location of re-entry cannot be predicted precisely At present, scientists expect the X-ray satellite, which completes an orbit around Earth in about 90 minutes, to re-enter around the end of October 2011. Currently, this date can only be calculated to within plus/minus five weeks.This time slot of uncertainty will be reduced as the date of re-entry approaches. However, even one day before re-entry, the estimate will only be accurate to within plus/minus five hours .All areas under the orbit of ROSAT, which extends to 53 degrees northern and southern latitude could well be affected by its re-entry.

Last ROSAT Keps Elements from Heaven Above.com is

1 20638U 90049A 11278.21294523 .00351318 67772-4 48765-3 0 5261
2 20638 052.9796 239.1203 0004485 084.7998 275.3547 16.05443244191732

ROSAT - Mission parameters

Launch date 1 June 1990
Launch site Cape Canaveral, Florida, USA
Launch vehicle Delta II rocket
End of mission 12 February 1999
Control Centre German Space Operations Center (GSOC), Oberpfaffenhofen
Ground station DLR's ground station in Weilheim
Launch mass 2,426 kilograms
External dimensions 2.20 metres x 4.70 metres x 8.90 metres
Orbit around Earth Originally at an altitude of approximately 580 kilometres with an inclination of 53°
Payload a) X-ray telescope

Geomagnetic Disturbance Index

Solar Radio Data Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center

SATELLITE ORBITAL DECAY software from The Australian Space Weather Agency
shows the following prediction table !

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