ARLK057 follows

ARLK057 follows

ZCZC SK57

QST de W1AW

Keplerian Bulletin 57 ARLK057

From ARRL Headquarters

Newington, CT August 4, 2026

To all radio amateurs

SB KEP ARL ARLK057

ARLK057 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

0 AO-7

1 07530U 74089B 26215.87517428 -.00000049 00000-0 -15923-4 0 9990 2 07530 101.9913 229.6195 0012515 41.7235 79.0336 12.53698911366492

0 ISS

1 25544U 98067A 26215.79638706 .00007444 00000-0 14146-3 0 9990 2 25544 51.6316 64.4821 0007225 9.2337 350.8783 15.49332738579133

0 SO-50

1 27607U 02058C 26215.96335912 .00001025 00000-0 13788-3 0 9999 2 27607 64.5535 341.1556 0073878 253.6899 105.6073 14.83141205271542

0 AO-73

1 39444U 13066AE 26215.84203147 .00007451 00000-0 45394-3 0 9990 2 39444 97.8317 188.3115 0037244 44.1759 316.2433 15.10100721686851

0 AO-91

1 43017U 17073E 26215.89164675 .00008197 00000-0 35188-3 0 9998 2 43017 97.4639 82.1344 0149312 163.1703 197.4561 15.13335367472607

0 PO-101

1 43678U 18084H 26215.98198657 .00001720 00000-0 14111-3 0 9999 2 43678 98.1213 54.2894 0011398 20.4973 339.6705 15.00627953423384

0 QO-100

1 43700U 18090A 26215.66665450 .00000153 00000-0 00000-0 0 9995 2 43700 0.0036 118.7341 0002554 50.7429 48.5428 1.00271250 28158

0 JO-97

1 43803U 18099AX 26215.89810886 .00018312 00000-0 53798-3 0 9999 2 43803 97.4093 278.9380 0007195 102.7429 257.4619 15.35154800420941

0 RS-44

1 44909U 19096E 26215.77315520 .00000023 00000-0 44331-4 0 9991 2 44909 82.5242 308.0898 0217984 33.3872 328.0758 12.79748848308433

0 FO-118

1 54684U 22167C 25064.68183564 .08547514 26414-5 93170-3 0 9992 2 54684 97.5856 230.7463 0011725 277.2083 82.7881 16.37185507124845

0 SONATE-2

1 59112U 24043Q 26215.39789011 .00047284 00000-0 53318-3 0 9993 2 59112 97.5578 8.8336 0005554 36.6505 323.5132 15.62376786135259

0 AO-123

1 61781U 24199AY 26215.91747524 .00008128 00000-0 23090-3 0 9999 2 61781 97.2930 84.1622 0014999 132.2998 227.9520 15.36326551141251

Keplerian bulletins are transmitted twice weekly from W1AW. The next scheduled transmission of these data will be Friday, August 7, 2026 at 2230z on Baudot and MFSK16.

NNNN

/EX