Stephen, This is Jim Varney's little joke. He is creating elsets for GPS birds (like 90088A below) from the unclassified state vectors and giving them a 'C' classification (C=Classified, U=Unclassified). The source of your elsets obviously obtained the GPS elsets from Jim at http://www.softcom.net/users/jamesv/gps/gps.html and not from some classified source. Except for the name, the elset below agrees with Jim's file: gps1006.tle to the last decimal place. Randy -----Original Message----- From: sthompson@esiusa.com [mailto:sthompson@esiusa.com] Sent: Wednesday, June 02, 1999 12:27 PM To: SeeSat-D@blackadder.lmsal.com Subject: TLE format query > Kulbinder Kalirai, the author of TLEMOP asks: > > I found several hundred elements that have a "C" instead of the "U" in > line "1" of the element set (elements came from the ELyymmdd files). > Any idea if this is just a mistake or is it some sort of special > indicator? What does it mean? > > Example: > 90088 A > 1 20830C 90088 A 99112.02068287 -.00000035 00000-0 00000-0 0 05 > 2 20830 56.3407 10.2305 0072357 86.9455 227.0530 2.00573119 00009 > > If it is valid, then I will have to modify tlemop to allow for it. > > I would be happy to forward responses to Kul. Private reply is OK > > Stephen > > SThompson@esiusa.com > 30.5 N 84 W >