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Envisat Orbit Prediction Error

The following table shows the RMS of the daily computed along-track errors over 1 orbit after 1, 3, and 6 days of Envisat orbit prediction.

Envisat (meters)
Monthafter 1 dayafter 3 daysafter 6 days Comment
July 2006 1150168 .
June 2006 1059194 .
May 2006 1375262 .
April 2006 1470212 .
March 2006 1442140 .
February 2006 1259206 .
January 2006 1589289 .
December 2005 1595345 .
November 2005 1587312 .
October 2005 1372260 .
September 2005 1295421 .
August 2005 20106356 .
July 2005 1393353 .
June 2005 1564337 .
May 2005 23142452 .
April 2005 1490316 .
March 2005 1589326 .
February 2005 19117433 .
January 2005 30194704 .
December 2004 15126523 .
November 2004 22180747 .
October 2004 20144566 .
September 2004 1796293 .
August 2004 1654214 .
July 2004 21130554 .
June 2004 1355160 .
May 2004 1265218 .
April 2004 19107266 .
March 2004 20154611 .
February 2004 23193736 .
January 2004 30184560 .
December 2003 28162521 .
November 2003 527841916 .
October 2003 21163630 .
September 2003 20139430 .
August 2003 31192525 .
July 2003 24141471 .
June 2003 22140476 .
May 2003 483391299 .
April 2003 21150443 statistics incomplete
March 2003 383901560 statistics incomplete
February 2003 38250724 statistics incomplete
January 2003 343071144 .
December 2002 816211939 Increased solar activity
November 2002 674151067 .
October 2002 845081570 .
September 2002 845971797 Degradation of predictions due to increased number of manoeuvres
August 2002 565442150 Degradation of predictions due to a period of increased solar activity
July 2002 23151609 .
June 2002 17142699 Statistics available from the 9th of June onwards