Hi All, Several people have contacted me concerning discrepancies between the identifications of Iridium 9 and Iridium 10 as handled by IRIDFLAR vs. SkyMap (and other programs). SkyMap (and other tracking programs) take the name line in the 2-line elements (i.e. line 0) literally. = Whatever name is there, the program will gleefully treat as gospel. IRIDFLAR is different, however. It doesn't care what name is on the name line. It = has internally hard-coded names based on the 5-digit USSPACECOM catalogue = number that appears in the TLEs. Thus, if it sees #24839, it knows that it's Iridium 9. It is only when a new launch occurs with an unrecognized USSPACECOM number that IRIDFLAR will turn to the name line for guidance. The descrepany results when the TLEs have the wrong name on the name line. Some source out there in cyberspace, for example, has provided the following TLEs: IRIDIUM 10 779 x 776 1 24839U 97030D 98060.06583813 .00000012 00000-0 -26204-5 0 1267 2 24839 86.3970 55.3303 0002180 58.6330 301.5078 14.34217571 36745 IRIDIUM 09 781 x 774 1 24838U 97030C 98059.50135257 .00000008 00000-0 -41832-5 0 1403 2 24838 86.3946 55.4889 0004705 50.9466 309.2148 14.34217089 36654 These are WRONG. I don't know what agency is responsible for continuing to swap these designations, but I want people to be aware of the error. One rumor is that the SEDS site (University of Arizona) is a culprit. = I've also heard that the Air Force Instititude of Technology at Wright-Patt = might have it wrong. I choose to believe OIG, Mike McCants, Alan Pickup and Ted Molczan, and they all say Iridium 9 is #24839, Iridium 10 is #24840. If anyone knows of any web sites that have definitely got it wrong, could they please post a message about it on Seesat? Thanx! --Rob