SB KEP @ ARL $ARLK051 ARLK051 Keplerian data ZCZC SK51 QST de W1AW Keplerian Bulletin 51 ARLK051 From ARRL Headquarters Newington, CT June 29, 2021 To all radio amateurs SB KEP ARL ARLK051 ARLK051 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 AO-07 1 07530U 74089B 21180.22310278 -.00000041 00000-0 31588-4 0 9995 2 07530 101.8542 154.7136 0012350 1.7175 69.1439 12.53649200133200 0 ISS 1 25544U 98067A 21180.62668935 .00001692 00000-0 39184-4 0 9994 2 25544 51.6452 281.2053 0002260 121.8183 13.7193 15.48746986290520 0 SO-50 1 27607U 02058C 21180.43054920 .00000013 00000-0 22381-4 0 9990 2 27607 64.5560 301.7201 0041983 16.9541 343.2953 14.75760842996484 0 AO-73 1 39444U 13066AE 21180.44898351 .00000422 00000-0 57395-4 0 9995 2 39444 97.5835 166.5213 0059123 111.4571 249.2962 14.82440848409805 0 XW-2A 1 40903U 15049E 21180.40670462 .00003322 00000-0 71217-4 0 9998 2 40903 97.2347 234.8519 0011319 339.7903 76.0030 15.45410867324647 0 XW-2D 1 40907U 15049J 21180.49852398 .00000886 00000-0 48007-4 0 9994 2 40907 97.4840 182.4986 0014864 136.6305 342.8004 15.17097032319424 0 XW-2F 1 40910U 15049M 21180.44313881 .00001508 00000-0 74983-4 0 9996 2 40910 97.4709 185.5473 0015606 124.1428 11.4430 15.19088356319546 0 XW-2B 1 40911U 15049N 21180.44030712 .00000904 00000-0 49048-4 0 9999 2 40911 97.4834 183.1209 0014884 138.2616 4.6109 15.17013620319300 0 IO-86 1 40931U 15052B 21179.14730226 .00000716 00000-0 10567-4 0 9992 2 40931 5.9972 176.0573 0013105 199.1949 160.7673 14.76679377310889 0 CAS-4B 1 42759U 17034B 21180.54516037 .00000395 00000-0 37081-4 0 9995 2 42759 43.0172 114.6052 0009884 246.3670 282.7893 15.10241650222978 0 CAS-4A 1 42761U 17034D 21180.33270604 .00000301 00000-0 31319-4 0 9997 2 42761 43.0164 114.8148 0009849 247.9508 257.6273 15.10327719222949 0 AO-91 1 43017U 17073E 21180.43864723 .00000540 00000-0 47645-4 0 9991 2 43017 97.7060 83.9522 0253317 261.2683 95.9765 14.79583453194895 0 PO-101 1 43678U 18084H 21180.39311660 .00000434 00000-0 48833-4 0 9991 2 43678 97.9257 305.7340 0010469 19.7954 340.3652 14.91762339145217 0 QO-100 1 43700U 18090A 21180.11646359 .00000134 00000-0 00000-0 0 9997 2 43700 0.0106 323.1227 0001582 163.1049 218.9089 1.00272979 9488 0 RS-44 1 44909U 19096E 21180.04227770 .00000036 00000-0 93092-4 0 9998 2 44909 82.5217 105.1145 0218566 66.0978 296.2853 12.79710472 70309 Keplerian bulletins are transmitted twice weekly from W1AW. The next scheduled transmission of these data will be Friday, July 2, 2021, at 2230z on Baudot and BPSK31. NNNN /EX