Date: | 2011-12-18 05:17:32 | |
Sender: | ”Erricos C. Pavlis” <epavlis@umbc.edu> | |
Subject: | [RapidServiceMail] No.13: ILRS/AWG Rapid Service Mail (JCET) 7308 Erratic Behavior 2011/9-now Message No. 0013 | |
Content: | ******************************************************************************** ILRS/AWG Rapid Service Mail (JCET) 7308 Erratic Behavior 2011/9-now Message No. 0013 ******************************************************************************** Dear all, An examination of the recent data from Koganei (7308) indicates that after a fairly long period of unreported down-time (Feb. 22, 2011 to Sept. 2011), the system is now behaving very differently and exhibits a rather large scatter in its bias which is very significant in comparison to the associated accuracy estimates (see the attached plots for the period preceding the current period for LAGEOS and LAGEOS 2 passes from 2009 to present). The sitelog does not refer to any recent work on the system, but it is probably outdated since the station web page that is listed there is non-existent and the email for the contact person (Hiroo Kunimori) is also outdated. The AWG should immediately proceed with the adjustment of (at least) a bias per weekly solution to avoid corruption of the ILRS products. ecp‰PNG |