Hello from New Zealand, Its cloudy outside at the moment in our (Southern Hemisphere) spring. So to do some "visual observing" I have had to use my PC. I was fascinated with Walter Nissen's Iridial tabulation. And so wanted to verify for myself the concept, but what is the easiest way to do so - I recently downloaded "SatScape" a cute UK freeware satellite viewer (most notable by the fact it talks to you). Its like having Stephen Hawking sitting next to you reading out what satellite is popping over the local horizon. The other attribute is has (over most others) is that it can real time plot hundreds of satellites at once. Checking out the Iridium "procession" seemed like an excellent task for it. At the flick of the mouse (and the latest Celestrak Iridium TLE's) I plotted all 90 Iridiums on a lovely map of the world. Setting a timer for 15 minute intervals, I started to read a book, and when the timer went off I would note the order of the Iridium positions against Walter's table. Talk about armchair satellite viewing !!! Anyway, I offer the following comments to add to "perfecting" the wonderful table of Walter's. P00 - P0A Agree P20 - P2A Agree P50 - P5A Agree Walter------Geoff P10 24* P10 45 P11 47 P11 47 P12R 11A P12R 11A P13 49 P13 49 P14 26 P14 26 P15R 3 P15R 3 P16 22 P16 22 P17 23 P17 24 P18 76 P18 23 P19 25 P19 76 P1A 45 P1A 25 Walter------Geoff P30 5 P30 5 P31 6 P31 6 P32 7 P32 7 P33 8 P33 8 P34 4 P34 4 P35 35* P35 37 P36 61 P36 61 P37 19 P37 19 P38 34 P38 34 P39 37* P39 35 P3A 36 P3A 36 Walter------Geoff P40 10* P40 9 P41 9* P41 10 P42 52* P42 54 P43 12 P43 12 P44 13 P44 13 P45R 83 P45R 83 P46 16 P46 16 P47 53* P47 50 P48 56 P48 56 P49 50* P49 52 P4A 54* P4A 53 Regards Geoff Hitchcox Latitude: 43.5197 degrees SOUTH Longitude: 172.7022 degrees EAST Christchurch, New Zealand, South Pacific. ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html