SB KEP @ ARL $ARLK053 ARLK053 Keplerian data ZCZC SK53 QST de W1AW Keplerian Bulletin 53 ARLK053 From ARRL Headquarters Newington, CT July 6, 2021 To all radio amateurs SB KEP ARL ARLK053 ARLK053 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 21187.57476951 -.00000037 00000-0 52111-4 0 9991 2 07530 101.8545 162.0580 0012231 347.6603 128.1687 12.53649373134128 0 ISS 1 25544U 98067A 21187.46697458 .00000431 00000-0 16068-4 0 9991 2 25544 51.6441 247.3821 0002094 139.8380 359.0994 15.48767607291582 0 SO-50 1 27607U 02058C 21187.54589018 -.00000009 00000-0 19174-4 0 9992 2 27607 64.5557 279.9622 0042852 14.6094 345.6236 14.75762897997345 0 AO-73 1 39444U 13066AE 21187.53625064 .00000454 00000-0 61263-4 0 9995 2 39444 97.5836 173.2429 0059277 88.8336 271.9669 14.82447746410853 0 XW-2A 1 40903U 15049E 21187.39938834 .00003597 00000-0 76821-4 0 9993 2 40903 97.2347 241.8237 0010698 311.7539 102.9102 15.45466666325723 0 XW-2D 1 40907U 15049J 21187.49843286 .00001234 00000-0 65515-4 0 9998 2 40907 97.4844 189.4132 0015336 113.9165 51.8195 15.17116694320487 0 XW-2F 1 40910U 15049M 21187.49410329 .00001954 00000-0 96091-4 0 9992 2 40910 97.4724 192.5229 0016026 101.9077 49.2231 15.19117504320616 0 XW-2B 1 40911U 15049N 21187.49958124 .00001194 00000-0 63627-4 0 9998 2 40911 97.4848 190.0936 0015253 115.0920 35.9808 15.17032821320377 0 IO-86 1 40931U 15052B 21187.45471431 .00000666 00000-0 36045-5 0 9999 2 40931 5.9946 116.8729 0013770 313.3880 46.5176 14.76679595312116 0 CAS-4B 1 42759U 17034B 21187.42348534 .00000715 00000-0 56240-4 0 9998 2 42759 43.0183 76.7887 0010098 284.8261 244.2738 15.10254324224016 0 CAS-4A 1 42761U 17034D 21187.59481522 .00000714 00000-0 56067-4 0 9990 2 42761 43.0181 74.8863 0010444 286.4024 150.4197 15.10341960224043 0 AO-91 1 43017U 17073E 21187.47201483 .00000463 00000-0 41578-4 0 9993 2 43017 97.7056 90.7071 0253494 238.1878 119.4426 14.79591236195930 0 PO-101 1 43678U 18084H 21187.57026358 .00000100 00000-0 15726-4 0 9990 2 43678 97.9259 312.9487 0009792 356.5786 3.5397 14.91760254146289 0 QO-100 1 43700U 18090A 21187.51341779 .00000154 00000-0 00000-0 0 9998 2 43700 0.0189 32.4911 0001208 104.1665 358.6659 1.00272051 9568 0 RS-44 1 44909U 19096E 21187.46951107 .00000004 00000-0 -31806-4 0 9990 2 44909 82.5218 100.1805 0218432 48.8212 313.1502 12.79710624 71253 Keplerian bulletins are transmitted twice weekly from W1AW. The next scheduled transmission of these data will be Friday, July 9, 2021, at 2230z on Baudot and BPSK31. NNNN /EX