SB KEP @ ARL $ARLK073 ARLK073 Keplerian data ZCZC SK73 QST de W1AW Keplerian Bulletin 73 ARLK073 From ARRL Headquarters Newington, CT September 14, 2021 To all radio amateurs SB KEP ARL ARLK073 ARLK073 Keplerian data Special thanks to Space-Track.org for the following Keplerian data. Decode 2-line elsets with the following key: 1 AAAAAU 00 0 0 BBBBB.BBBBBBBB .CCCCCCCC 00000-0 00000-0 0 DDDZ 2 AAAAA EEE.EEEE FFF.FFFF GGGGGGG HHH.HHHH III.IIII JJ.JJJJJJJJKKKKKZ KEY: A-CATALOGNUM B-EPOCHTIME C-DECAY D-ELSETNUM E-INCLINATION F-RAAN G-ECCENTRICITY H-ARGPERIGEE I-MNANOM J-MNMOTION K-ORBITNUM Z-CHECKSUM AO-07 1 07530U 74089B 21257.40933929 -.00000032 00000-0 85772-4 0 9998 2 07530 101.8642 231.8475 0011910 210.2902 304.6161 12.53650253142872 ISS 1 25544U 98067A 21257.77293981 .00012084 00000-0 23190-3 0 9996 2 25544 51.6443 259.7567 0003349 18.0796 328.8791 15.48401083302474 SO-50 1 27607U 02058C 21257.47893898 .00000051 00000-0 27788-4 0 9992 2 27607 64.5548 66.1007 0051711 354.4445 5.6076 14.75787365 7644 AO-73 1 39444U 13066AE 21257.39446432 .00000475 00000-0 63979-4 0 9996 2 39444 97.5915 239.5318 0056462 218.2981 141.4217 14.82514069420610 XW-2A 1 40903U 15049E 21257.38086896 .00005764 00000-0 11951-3 0 9992 2 40903 97.2266 311.5884 0013434 55.5490 2.5510 15.46029567336531 XW-2D 1 40907U 15049J 21257.47208090 .00001850 00000-0 96090-4 0 9998 2 40907 97.4881 258.5620 0012189 231.6827 281.5669 15.17298308331094 XW-2F 1 40910U 15049M 21257.50797737 .00002376 00000-0 11536-3 0 9992 2 40910 97.4741 261.8057 0013045 214.4436 296.9380 15.19379183331241 XW-2B 1 40911U 15049N 21257.47968090 .00001780 00000-0 92843-4 0 9990 2 40911 97.4881 259.2382 0012146 232.7916 279.6713 15.17211808330981 IO-86 1 40931U 15052B 21254.44394198 .00000683 00000-0 60119-5 0 9995 2 40931 6.0026 359.0800 0012566 183.1706 122.4545 14.76688100322027 CAS-4B 1 42759U 17034B 21257.57786794 .00000830 00000-0 62960-4 0 9990 2 42759 43.0173 51.0558 0008644 352.6736 93.1026 15.10361155234621 CAS-4A 1 42761U 17034D 21257.56340006 .00000960 00000-0 70591-4 0 9997 2 42761 43.0174 50.1217 0009298 355.9726 88.3910 15.10450380234625 0 AO-91 1 43017U 17073E 21257.53251358 .00001880 00000-0 14877-3 0 9999 2 43017 97.6960 157.9505 0254760 10.0515 350.5656 14.79728834206294 PO-101 1 43678U 18084H 21257.59715341 .00000607 00000-0 65892-4 0 9998 2 43678 97.9351 23.3934 0011222 112.8984 247.3410 14.91791905156727 QO-100 1 43700U 18090A 21257.40118847 .00000128 00000-0 00000-0 0 9993 2 43700 0.0172 162.6598 0002189 33.7266 327.4193 1.00271463 10262 RS-44 1 44909U 19096E 21257.36362131 .00000027 00000-0 67965-4 0 9999 2 44909 82.5204 53.7213 0216519 245.1227 112.7228 12.79710868 80197 Keplerian bulletins are transmitted twice weekly from W1AW. The next scheduled transmission of these data will be Friday, September 17, 2021, at 2230z on Baudot and BPSK31. NNNN /EX