Standard magnitudes for RORSAT/Topaz satellites ----------------------------------------------- From Russell's observations (1980 Jan 01 to 1995 Dez 31) I have derived standard magnitudes (1000 km, 90 deg) for nine RORSAT and the two Topaz satellites. Third generation RORSATs COSMOS 1579 1984-069A 20 5.62 +/- 0.18 0.0359 +/- 0.0070 COSMOS 1607 1984-112A 4 5.45 +/- 0.15 0.0496 +/- 0.0034 COSMOS 1670 1985-064A 4 5.42 +/- 0.29 0.0151 +/- 0.0079 COSMOS 1677 1985-075A 9 4.32 +/- 0.36 -0.0059 +/- 0.0109 COSMOS 1736 1986-024A 10 5.24 +/- 0.29 0.0369 +/- 0.0067 COSMOS 1771 1986-062A 4 6.09 +/- 0.17 0.0212 +/- 0.0137 COSMOS 1860 1987-052A 4 4.73 +/- 0.41 0.0268 +/- 0.0160 COSMOS 1900 1987-101A 4 7.40 +/- 1.47 0.0299 +/- 0.0554 COSMOS 1932 1988-019A 5 4.29 +/- 0.54 0.0175 +/- 0.0218 ------------------------------------------------------------------- ALL 64 5.46 +/- 0.13 0.0295 +/- 0.0041 Topaz COSMOS 1818 1987-011A 24 5.38 +/- 0.13 0.0234 +/- 0.0052 COSMOS 1867 1987-060A 10 5.11 +/- 0.25 0.0224 +/- 0.0058 ------------------------------------------------------------------- ALL 34 5.32 +/- 0.11 0.0249 +/- 0.0034 column 1 : name column 2 : international designation column 3 : number of observations column 4 : standard magnitude column 5 : phase coefficient Rainer Kracht 1996 Jan 24 0412188960-0001@t-online.de R.Kracht@t-online.de