SB KEP @ ARL $ARLK031 ARLK031 Keplerian data ZCZC SK31 QST de W1AW Keplerian Bulletin 31 ARLK031 From ARRL Headquarters Newington, CT April 20, 2021 To all radio amateurs SB KEP ARL ARLK031 ARLK031 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 21110.56533772 -.00000022 00000-0 14923-3 0 9993 2 07530 101.8496 85.1405 0012451 132.0237 337.6380 12.53648346124470 0 ISS 1 25544U 98067A 21110.68557983 .00002219 00000-0 48552-4 0 9998 2 25544 51.6450 267.1365 0002505 253.9818 217.3953 15.48911386279689 0 SO-50 1 27607U 02058C 21110.56406920 .00000058 00000-0 28791-4 0 9998 2 27607 64.5543 155.3650 0034292 42.8670 317.5096 14.75736004986015 0 AO-73 1 39444U 13066AE 21110.51974385 .00000626 00000-0 82429-4 0 9990 2 39444 97.5814 100.2116 0057255 343.3487 16.5845 14.82380490398858 0 XW-2A 1 40903U 15049E 21110.54452380 .00005281 00000-0 11411-3 0 9998 2 40903 97.2419 165.1972 0011122 219.4496 276.7141 15.44890564313857 0 XW-2D 1 40907U 15049J 21110.57995832 .00001630 00000-0 85882-4 0 9997 2 40907 97.4860 113.4358 0015067 31.0006 86.1816 15.16936135308821 0 XW-2F 1 40910U 15049M 21110.54577907 .00002580 00000-0 12677-3 0 9993 2 40910 97.4734 116.4130 0015318 18.4764 99.4103 15.18853275308938 0 XW-2B 1 40911U 15049N 21110.57936208 .00001597 00000-0 84394-4 0 9993 2 40911 97.4860 114.1242 0014980 32.2391 83.6750 15.16854045308715 0 IO-86 1 40931U 15052B 21110.52656761 .00000779 00000-0 19327-4 0 9992 2 40931 5.9976 305.5531 0013808 307.5846 52.2991 14.76672332300721 0 CAS-4B 1 42759U 17034B 21110.49959277 .00000530 00000-0 45220-4 0 9994 2 42759 43.0162 139.6807 0008172 168.8251 341.0516 15.10160287212385 0 CAS-4A 1 42761U 17034D 21110.49362997 .00000542 00000-0 45891-4 0 9991 2 42761 43.0165 138.8077 0009038 171.1621 337.8519 15.10241647212387 0 AO-91 1 43017U 17073E 21110.30621236 .00000957 00000-0 78214-4 0 9998 2 43017 97.7107 16.5934 0256395 129.8661 232.5411 14.79437715184525 0 PO-101 1 43678U 18084H 21110.43205877 .00000094 00000-0 15090-4 0 9992 2 43678 97.9140 235.4431 0008509 240.3700 119.6684 14.91731266134788 0 QO-100 1 43700U 18090A 21110.56811056 .00000144 00000-0 00000-0 0 9998 2 43700 0.0142 252.8459 0002549 168.0219 18.3138 1.00273141 8781 0 RS-44 1 44909U 19096E 21110.53724011 .00000013 00000-0 11686-4 0 9999 2 44909 82.5201 151.2982 0216551 228.3027 129.9369 12.79709659 61414 Keplerian bulletins are transmitted twice weekly from W1AW. The next scheduled transmission of these data will be Friday, April 23, 2021, at 2230z on Baudot and BPSK31. NNNN /EX