ARLK057 follows

ARLK057 follows

ZCZC SK57

QST de W1AW

Keplerian Bulletin 57 ARLK057

From ARRL Headquarters

Newington, CT August 7, 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 26219.28221715 -.00000043 00000-0 18397-4 0 9991 2 07530 101.9915 233.0623 0012474 35.3537 335.9626 12.53698908366927

0 ISS

1 25544U 98067A 26219.02141064 .00004539 00000-0 89363-4 0 9992 2 25544 51.6324 48.5171 0007293 20.5996 339.5285 15.49370096579630

0 SO-50

1 27607U 02058C 26218.66047581 .00000743 00000-0 10515-3 0 9992 2 27607 64.5537 332.8101 0073783 253.2028 106.0975 14.83146061271947

0 AO-73

1 39444U 13066AE 26218.89004520 .00004205 00000-0 25804-3 0 9990 2 39444 97.8312 191.4275 0036792 33.8704 326.4863 15.10133596687318

0 AO-91

1 43017U 17073E 26219.13159605 .00004605 00000-0 19892-3 0 9990 2 43017 97.4637 85.3085 0149487 152.0522 208.8841 15.13371588473098

0 PO-101

1 43678U 18084H 26219.24928815 .00000749 00000-0 64439-4 0 9998 2 43678 98.1219 57.7015 0011189 8.9882 351.1539 15.00634426423872

0 QO-100

1 43700U 18090A 26218.51792012 .00000149 00000-0 00000-0 0 9992 2 43700 0.0076 114.2722 0002584 61.1120 351.9117 1.00273125 28185

0 JO-97

1 43803U 18099AX 26219.15712163 .00008624 00000-0 25428-3 0 9995 2 43803 97.4092 282.2136 0007171 93.8431 266.3633 15.35234974421446

0 RS-44

1 44909U 19096E 26219.29118874 .00000008 00000-0 -16209-4 0 9992 2 44909 82.5234 305.7527 0217842 25.1781 335.9751 12.79748745308883

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 26218.98418651 .00027867 00000-0 31226-3 0 9999 2 59112 97.5577 12.6638 0005362 22.2192 337.9297 15.62645892135816

0 AO-123

1 61781U 24199AY 26219.30432771 .00004162 00000-0 11924-3 0 9998 2 61781 97.2932 87.5193 0015211 121.3502 238.9234 15.36364215141771

Keplerian bulletins are transmitted twice weekly from W1AW. The next scheduled transmission of these data will be Tuesday, August 11, 2026

at 2230z on Baudot and MFSK16.

NNNN

/EX