SB KEP @ ARL $ARLK081 ARLK081 Keplerian data ZCZC SK81 QST de W1AW Keplerian Bulletin 81 ARLK081 From ARRL Headquarters Newington, CT October 12, 2021 To all radio amateurs SB KEP ARL ARLK081 ARLK081 Keplerian data Special thanks to AMSAT-NA (AMSAT.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 0 OSCAR 7 1 07530U 74089B 21285.49028545 -.00000031 00000-0 89753-4 0 9999 2 07530 101.8701 259.9280 0012218 155.8838 318.4306 12.53650726146397 0 ISS 1 25544U 98067A 21285.77998234 .00014666 00000-0 27709-3 0 9998 2 25544 51.6397 121.2756 0003949 102.4549 258.7660 15.48660189306828 0 SO-50 1 27607U 02058C 21285.53310311 .00000207 00000-0 50011-4 0 9992 2 27607 64.5563 340.3074 0055260 347.1207 12.8480 14.75801823 11998 0 AO-73 1 39444U 13066AE 21285.47206110 .00000845 00000-0 10834-3 0 9995 2 39444 97.5958 266.1976 0058709 126.2784 234.3874 14.82549637424779 0 XW-2A 1 40903U 15049E 21285.54234747 .00006283 00000-0 12876-3 0 9995 2 40903 97.2219 339.6541 0010453 313.0326 156.7623 15.46372355340884 0 XW-2D 1 40907U 15049J 21285.55842149 .00001918 00000-0 99098-4 0 9993 2 40907 97.4893 286.3314 0014940 132.2158 343.5320 15.17402988335353 0 XW-2F 1 40910U 15049M 21285.49639250 .00003026 00000-0 14523-3 0 9998 2 40910 97.4751 289.5155 0015615 118.8131 32.2895 15.19536533335499 0 XW-2B 1 40911U 15049N 21285.50843435 .00001834 00000-0 95189-4 0 9996 2 40911 97.4896 286.9463 0014894 133.7898 18.0568 15.17315010335231 0 IO-86 1 40931U 15052B 21285.18454981 .00000844 00000-0 28318-4 0 9990 2 40931 5.9937 139.9011 0013710 259.6494 100.2065 14.76695333326582 0 CAS-4B 1 42759U 17034B 21285.36565661 .00001052 00000-0 76116-4 0 9991 2 42759 43.0179 258.2488 0007439 183.4839 330.9047 15.10432361238824 0 CAS-4A 1 42761U 17034D 21285.41260697 .00001135 00000-0 80878-4 0 9993 2 42761 43.0174 256.9593 0007906 185.8038 310.3037 15.10520112238834 0 AO-91 1 43017U 17073E 21285.25568234 .00001990 00000-0 15855-3 0 9992 2 43017 97.6938 184.5493 0252524 279.2954 77.9785 14.79838065210390 0 PO-101 1 43678U 18084H 21285.56723294 -.00000040 00000-0 18023-5 0 9999 2 43678 97.9390 51.5539 0010601 30.7123 329.4728 14.91801676160891 0 QO-100 1 43700U 18090A 21285.53104677 .00000131 00000-0 00000-0 0 9998 2 43700 0.0176 181.4972 0002242 40.3290 16.4649 1.00271393 10546 0 RS-44 1 44909U 19096E 21285.43157197 .00000021 00000-0 37050-4 0 9998 2 44909 82.5256 35.0730 0217597 179.3657 180.7763 12.79711244 83789 Keplerian bulletins are transmitted twice weekly from W1AW. The next scheduled transmission of these data will be Friday, October 15, 2021, at 2230z on Baudot and BPSK31. NNNN /EX