Hello fellow observers and other interested folks, My apparent lack of presence on SeeSat-L does not mean I stopped observing satellites. There are two reasons I stopped with position determinations: 1. The excellent program ObsReduce does not work on my laptop. I don’t know the reason and did not yet found the time to solve this problem. 2. Within a few hundred kilometers are three very active observers. Leo Barhorst and Cees Bassa apply SatTools, written by Cees. And Marco Langbroek is observing using camera's as well and , using . 1. In Guide 9: Find a suitable area on the sky to wait for the satellite 2. If found follow it and try to determine its magnitude by comparing it with stars not too far from it and with comparable brightness. (This is the hardest part) 3. While following I talk to my hand-held dictaphone and record in this way what I saw and estimated (magnitude). In this way I can also report other satellites I meet during the tracking of my selected object. 4. Essentially is to report the time(s) of observation. Normally at the end of the audiorecord. I should better use time at the beginning and time at the end. 5. After any observed transit I use a shortcut on my spreadsheet by which it presents me a form, partly filled in by the satellite identification (full International designation), the pseudo culmination time and direction. 6. I add my magnitude estimation, appearance and if available notes. 7. Then I hit the ok-button and a record is generated for my Satellite Log. After a session I overhear my audiorecords and complement my Satellite log records. For the magnitudes of the Starlink-satellites I assumed that we are especially interested in the maximum brightness of these objects. Therefore I selected the ascending transits on the evening of July 29, 2019. Those were coming up in my Sout-East, rising during the session until I stopped observing by tiredness. The Sun was in my back all the time. Every satellite observed was followed from a suitable point until it disappeared after the roof or the trees. Sometimes I was able to estimate the brightness three times during a transit. This depended on the « availability » of reference stars. The time accuracy of my observations of described kind are a couple of seconds. I think this is not crucial. The way I present them here is like Leo Barhorst presents his flare observations: a pseudo IOD-record. The first part with satellite identification, site number, date and time are like any IOD-record. Times are specified with second fractions of zero. No specification of location and time accuracy. Any record ends with the estimated (stellar) magnitude. Here are the results : 44246 19 029M 4160 G 20190729204120000 S 5.3 44246 19 029M 4160 G 20190729204205000 S 5.2 44259 19 029AA 4160 G 20190729210737000 S 5.0 44249 19 029Q 4160 G 20190729211144000 S 6.2 44238 19 029D 4160 G 20190729211720000 S 5.9 44252 19 029T 4160 G 20190729212844000 S 5.8 44252 19 029T 4160 G 20190729212903000 S 6.2 44262 19 029AD 4160 G 20190729213507000 S 6.2 44262 19 029AD 4160 G 20190729213654000 S 6.0 44253 19 029U 4160 G 20190729213957000 S 5.8 44253 19 029U 4160 G 20190729214018000 S 5.7 44235 19 029A 4160 G 20190729214319000 S 6.0 44260 19 029AB 4160 G 20190729214735000 S 6.1 44287 19 029BE 4160 G 20190729215038000 S 5.6 44261 19 029AC 4160 G 20190729215726000 S 6.1 44261 19 029AC 4160 G 20190729215808000 S 6.4 44285 19 029BC 4160 G 20190729221029000 S 5.8 44285 19 029BC 4160 G 20190729221041000 S 4.9 44285 19 029BC 4160 G 20190729221121000 S 5.3 44280 19 029AX 4160 G 20190729221553000 S 6.5 44280 19 029AX 4160 G 20190729221712000 S 5.8 44280 19 029AX 4160 G 20190729221753000 S 5.6 44255 19 029W 4160 G 20190729222458000 S 6.0 44255 19 029W 4160 G 20190729222618000 S 4.9 44255 19 029W 4160 G 20190729222713000 S 5.5 44279 19 029AW 4160 G 20190729223113000 S 6.7 44279 19 029AW 4160 G 20190729223157000 S 6.3 44279 19 029AW 4160 G 20190729223319000 S 3.1 44265 19 029AG 4160 G 20190729223553000 S 5.4 44265 19 029AG 4160 G 20190729223721000 S 4.7 44265 19 029AG 4160 G 20190729223808000 S 2.5 44270 19 029AM 4160 G 20190729223933000 S 3.1 44271 19 029AN 4160 G 20190729224444000 S 3.9 44269 19 029AL 4160 G 20190729224605000 S 3.9 44269 19 029AL 4160 G 20190729224624000 S 4.2 Any constructive remark is very welcome. Also any question about my way of working. Bram Dorreman. COSPAR Site Achel 1 : latitude 51.27931 N, longitude 5.47683 E. 35 m above sealevel (WGS 84) _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Wed Aug 07 2019 - 11:37:14 UTC
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