ACA Magnitude Statistics

2026:278:00:00:00.000 Update Report

Time range 2026:247:22:52:25.934 – 2026:277:22:52:25.933
New Stars 63
Updated Stars 71
Magnitude not Updated 147
Failures 0

New Stars

These are stars that are being added to the supplement.

AGASC ID Last Obs nobs nbad nfail fok fmag est ok 3 f5 arcsec magcatalog magobs δmag cat δmag/σmag δmag δσ color
2239048 2026:275 1 100.0% 100.0% 100.0% 5.88 ± 0.02 5.89 ± 0.03 0.01 0.50 – – 1.09
2239528 2026:275 1 100.0% 100.0% 100.0% 5.71 ± 0.02 5.74 ± 0.03 0.03 1.74 – – 1.26
2491848 2026:274 1 99.7% 99.7% 100.0% 9.53 ± 0.02 9.57 ± 0.03 0.04 1.77 – – 0.81
2625376 2026:274 1 99.9% 99.9% 100.0% 9.54 ± 0.02 9.61 ± 0.05 0.07 3.39 – – 1.38
2885472 2026:274 1 100.0% 100.0% 100.0% 8.20 ± 0.04 8.20 ± 0.03 0.00 0.04 – – 3.02
3015832 2026:274 1 100.0% 100.0% 100.0% 8.19 ± 0.02 8.22 ± 0.03 0.03 1.70 – – 1.22
15080216 2026:275 1 99.5% 97.8% 100.0% 9.63 ± 0.02 9.67 ± 0.04 0.03 1.67 – – 0.19
15085648 2026:275 1 99.7% 99.6% 100.0% 8.71 ± 0.02 8.76 ± 0.03 0.05 2.46 – – -0.12
15204768 2026:275 1 100.0% 100.0% 100.0% 7.15 ± 0.02 7.18 ± 0.03 0.03 1.30 – – 1.36
15211072 2026:275 1 99.5% 99.2% 100.0% 9.58 ± 0.02 9.67 ± 0.05 0.09 4.55 – – 3.02
15212048 2026:275 1 99.6% 99.3% 100.0% 9.22 ± 0.02 9.26 ± 0.04 0.04 1.97 – – 1.91
15214880 2026:275 1 100.0% 100.0% 100.0% 5.92 ± 0.02 5.92 ± 0.03 -0.00 -0.13 – – 0.91
56493008 2026:269 1 100.0% 100.0% 100.0% 8.55 ± 0.02 8.63 ± 0.03 0.08 3.98 – – 1.36
56628912 2026:269 1 100.0% 99.9% 100.0% 8.93 ± 0.07 8.86 ± 0.03 -0.06 -0.93 – – 3.79
56629040 2026:269 1 99.8% 99.8% 100.0% 8.94 ± 0.02 8.99 ± 0.03 0.05 2.41 – – 0.50
56631320 2026:269 1 99.9% 99.9% 100.0% 6.86 ± 0.03 6.91 ± 0.03 0.05 1.67 – – 0.43
78122656 2026:275 1 99.8% 93.3% 100.0% 9.37 ± 0.02 9.41 ± 0.04 0.04 2.09 – – 1.26
79561488 2026:268 1 99.9% 98.5% 100.0% 9.55 ± 0.02 9.55 ± 0.04 0.00 0.12 – – 0.99
79565856 2026:268 1 99.9% 99.9% 100.0% 8.53 ± 0.02 8.58 ± 0.03 0.05 2.74 – – 1.29
79567632 2026:268 1 99.9% 91.0% 100.0% 9.84 ± 0.02 9.89 ± 0.05 0.05 2.40 – – 1.09
79568952 2026:268 1 99.7% 99.5% 100.0% 9.16 ± 0.02 9.20 ± 0.04 0.04 1.97 – – 1.27
79569536 2026:268 1 99.8% 99.8% 100.0% 8.93 ± 0.02 8.98 ± 0.03 0.05 2.62 – – 1.24
152318080 2026:270 1 99.6% 99.4% 99.9% 9.03 ± 0.02 9.05 ± 0.04 0.02 1.24 – – 1.44
154273032 2026:270 1 99.9% 99.9% 100.0% 8.55 ± 0.02 8.59 ± 0.03 0.04 1.79 – – 0.38
154276024 2026:270 1 100.0% 100.0% 100.0% 8.42 ± 0.02 8.47 ± 0.03 0.06 2.85 – – 1.69
154404776 2026:269 1 99.8% 99.8% 100.0% 8.68 ± 0.02 8.75 ± 0.03 0.07 3.39 – – 0.61
154407080 2026:269 1 100.0% 99.6% 100.0% 8.74 ± 0.02 8.81 ± 0.03 0.07 3.31 – – 1.27
167780144 2026:269 1 99.9% 98.7% 99.9% 9.27 ± 0.02 9.32 ± 0.04 0.05 2.63 – – 0.94
451285928 2026:276 1 100.0% 100.0% 100.0% 6.62 ± 0.02 6.64 ± 0.03 0.01 0.71 – – 1.36
451417856 2026:276 1 98.7% 98.7% 100.0% 9.16 ± 0.02 9.19 ± 0.03 0.03 1.59 – – 0.78
544477408 2026:269 2 99.9% 99.5% 100.0% 9.29 ± 0.02 9.37 ± 0.04 0.08 4.08 – – 1.32
544481632 2026:269 2 99.9% 99.9% 100.0% 8.27 ± 0.02 8.34 ± 0.03 0.07 3.38 – – 0.55
611849240 2026:267 1 96.5% 91.3% 97.9% 9.44 ± 0.02 9.52 ± 0.05 0.08 3.90 – – 1.47
613157488 2026:272 2 100.0% 100.0% 100.0% 7.71 ± 0.09 7.80 ± 0.03 0.09 0.97 – – 3.21
613951824 2026:269 1 100.0% 97.3% 100.0% 9.33 ± 0.02 9.39 ± 0.04 0.06 3.10 – – 0.55
820644080 2026:272 1 100.0% 100.0% 100.0% 7.35 ± 0.02 7.38 ± 0.03 0.03 1.27 – – 0.59
852495072 2026:267 2 99.9% 99.9% 100.0% 8.47 ± 0.02 8.50 ± 0.03 0.04 1.81 – – 1.42
852495360 2026:267 2 99.8% 99.8% 100.0% 8.84 ± 0.02 8.87 ± 0.04 0.03 1.43 – – 1.45
852498808 2026:267 2 99.9% 99.8% 100.0% 8.22 ± 0.02 8.29 ± 0.03 0.06 3.17 – – -0.03
854208992 2026:269 1 100.0% 100.0% 100.0% 6.11 ± 0.02 6.12 ± 0.03 0.02 0.80 – – 1.72
854210472 2026:269 1 100.0% 100.0% 100.0% 8.43 ± 0.02 8.46 ± 0.03 0.03 1.34 – – 1.09
854214512 2026:269 1 100.0% 100.0% 100.0% 7.73 ± 0.02 7.79 ± 0.03 0.06 3.13 – – 0.02
854214520 2026:269 1 100.0% 100.0% 100.0% 6.98 ± 0.02 7.02 ± 0.03 0.04 1.75 – – -0.14
854214528 2026:269 1 100.0% 100.0% 100.0% 7.44 ± 0.02 7.45 ± 0.03 0.01 0.61 – – -0.04
854327608 2026:269 1 100.0% 100.0% 100.0% 8.32 ± 0.02 8.36 ± 0.03 0.03 1.75 – – 0.63
854328560 2026:269 1 100.0% 100.0% 100.0% 8.35 ± 0.02 8.39 ± 0.03 0.04 2.13 – – 1.42
854332104 2026:269 1 100.0% 100.0% 100.0% 8.37 ± 0.02 8.43 ± 0.03 0.07 3.29 – – 1.46
997592808 2026:275 2 99.6% 99.5% 100.0% 9.02 ± 0.02 9.07 ± 0.03 0.05 2.27 – – 1.16
997724968 2026:275 2 99.8% 99.8% 100.0% 8.42 ± 0.02 8.47 ± 0.03 0.04 2.14 – – 1.45
998120040 2026:275 2 99.8% 99.8% 100.0% 8.41 ± 0.02 8.44 ± 0.03 0.04 1.76 – – 2.19
1007158656 2026:274 1 99.9% 99.9% 99.9% 8.84 ± 0.02 8.91 ± 0.03 0.07 3.52 – – 0.42
1007166560 2026:274 1 99.8% 99.7% 100.0% 9.37 ± 0.02 9.41 ± 0.04 0.04 1.92 – – 0.25
1007684496 2026:274 1 100.0% 100.0% 100.0% 6.24 ± 0.02 6.26 ± 0.03 0.01 0.67 – – 1.94
1070604656 2026:272 1 100.0% 100.0% 100.0% 8.01 ± 0.14 7.98 ± 0.03 -0.03 -0.19 – – 3.14
1070607680 2026:272 1 100.0% 100.0% 100.0% 8.19 ± 0.02 8.22 ± 0.03 0.03 1.30 – – 1.20
1070611440 2026:272 1 100.0% 100.0% 100.0% 6.06 ± 0.02 6.10 ± 0.03 0.04 1.80 – – 2.16
1070611488 2026:272 1 99.9% 99.9% 99.9% 7.69 ± 0.02 7.73 ± 0.03 0.04 2.01 – – 1.21
1070613608 2026:272 1 99.9% 99.9% 100.0% 8.15 ± 0.02 8.17 ± 0.03 0.02 1.15 – – 1.21
1070613768 2026:272 1 99.9% 99.9% 99.9% 8.48 ± 0.02 8.55 ± 0.03 0.06 3.18 – – 1.10
1070614056 2026:272 1 100.0% 100.0% 100.0% 7.39 ± 0.02 7.43 ± 0.03 0.04 1.99 – – 1.54
1072323176 2026:272 1 99.9% 99.9% 99.9% 8.30 ± 0.02 8.35 ± 0.03 0.06 2.81 – – 1.42
1128271488 2026:276 1 100.0% 98.5% 100.0% 9.12 ± 0.15 9.46 ± 0.04 0.34 2.25 – – 3.55
1174280584 2026:267 2 100.0% 100.0% 100.0% 7.38 ± 0.02 7.41 ± 0.03 0.03 1.74 – – 0.27

Updated Stars

These are stars that are being updated in the supplement.

AGASC ID Last Obs nobs nbad nfail fok fmag est ok 3 f5 arcsec magcatalog magobs δmag cat δmag/σmag δmag δσ color
2491536 2026:274 6 98.9% 98.9% 100.0% 9.01 ± 0.02 9.04 ± 0.04 0.03 1.49 0.01 0.01 1.93
4591168 2026:276 18 100.0% 100.0% 100.0% 7.87 ± 0.02 7.92 ± 0.03 0.04 2.18 -0.01 -0.00 1.48
52172024 2026:269 7 99.8% 99.8% 100.0% 8.23 ± 0.02 8.26 ± 0.04 0.03 1.59 0.03 0.00 1.82
52178904 2026:269 2 98.9% 95.3% 99.3% 9.78 ± 0.02 9.85 ± 0.05 0.07 3.62 0.17 0.02 1.46
52301720 2026:269 3 100.0% 100.0% 100.0% 6.69 ± 0.02 6.71 ± 0.03 0.02 0.99 0.05 0.00 1.13
52306640 2026:269 3 98.5% 98.4% 100.0% 9.15 ± 0.02 9.18 ± 0.04 0.03 1.50 0.04 0.00 1.47
52310992 2026:269 4 99.9% 99.9% 100.0% 7.97 ± 0.02 8.00 ± 0.03 0.03 1.54 0.02 -0.00 2.24
56493848 2026:269 3 99.9% 99.6% 100.0% 8.87 ± 0.02 8.89 ± 0.03 0.02 0.78 0.01 0.00 1.35
56499784 2026:269 2 100.0% 100.0% 100.0% 7.86 ± 0.02 7.89 ± 0.04 0.03 1.44 0.05 0.01 1.15
58855008 2026:271 7 99.7% 99.7% 100.0% 7.99 ± 0.02 7.99 ± 0.04 0.00 0.20 0.01 0.00 1.33
73146544 2026:269 7 95.4% 93.9% 99.9% 8.70 ± 0.02 8.74 ± 0.04 0.04 1.99 0.02 0.00 2.09
76810856 2026:269 8 100.0% 100.0% 100.0% 8.59 ± 0.02 8.62 ± 0.04 0.02 1.12 0.01 0.01 1.34
76815896 2026:269 13 99.9% 99.9% 100.0% 8.09 ± 0.16 7.85 ± 0.27 -0.24 -1.52 -0.04 0.00 4.54
76816024 2026:269 3 99.5% 99.0% 100.0% 9.75 ± 0.02 9.76 ± 0.05 0.01 0.73 -0.01 -0.01 0.80
76945664 2026:272 3 99.1% 98.9% 100.0% 8.95 ± 0.02 8.96 ± 0.05 0.01 0.45 0.00 -0.01 1.23
76948080 2026:272 2 98.7% 97.8% 100.0% 9.47 ± 0.02 9.50 ± 0.04 0.03 1.49 0.06 0.00 0.67
76949448 2026:272 4 100.0% 100.0% 100.0% 6.72 ± 0.02 6.73 ± 0.04 0.02 0.86 0.01 0.00 -0.00
78122208 2026:275 2 99.9% 99.8% 100.0% 9.08 ± 0.02 9.10 ± 0.03 0.02 0.87 0.01 0.00 0.70
78123520 2026:275 2 99.1% 98.9% 99.9% 8.32 ± 0.02 8.36 ± 0.04 0.03 1.73 0.02 0.00 1.32
152316304 2026:270 2 100.0% 100.0% 100.0% 8.76 ± 0.02 8.81 ± 0.04 0.05 2.36 0.01 0.00 1.61
154273256 2026:270 2 99.9% 97.6% 100.0% 9.59 ± 0.02 9.57 ± 0.04 -0.02 -0.91 -0.00 0.01 1.68
154534448 2026:276 12 99.8% 99.2% 100.0% 9.57 ± 0.02 9.59 ± 0.05 0.02 0.85 -0.02 0.01 1.18
154537120 2026:276 19 99.8% 97.5% 99.9% 9.34 ± 0.02 9.39 ± 0.05 0.06 2.92 -0.02 -0.00 0.76
154539152 2026:276 3 99.7% 99.6% 100.0% 9.17 ± 0.02 9.25 ± 0.04 0.08 4.01 -0.01 0.00 1.70
166076672 2026:269 2 99.7% 99.7% 100.0% 8.55 ± 0.02 8.58 ± 0.03 0.03 1.60 0.04 0.00 1.39
182865856 2026:268 8 100.0% 100.0% 100.0% 7.10 ± 0.02 7.11 ± 0.04 0.02 0.91 0.02 0.01 0.24
196347680 2026:270 5 99.9% 97.7% 100.0% 9.39 ± 0.02 9.46 ± 0.07 0.07 3.45 0.00 0.01 1.88
225710688 2026:270 3 99.6% 99.1% 100.0% 9.59 ± 0.02 9.60 ± 0.05 0.01 0.56 0.04 0.01 0.74
225715192 2026:270 2 99.7% 99.7% 100.0% 7.97 ± 0.02 8.00 ± 0.03 0.03 1.63 0.01 0.00 1.01
394675960 2026:276 3 99.8% 99.8% 100.0% 9.51 ± 0.02 9.57 ± 0.05 0.06 2.91 0.03 0.01 1.02
502269016 2026:276 6 99.9% 99.9% 100.0% 8.86 ± 0.02 8.88 ± 0.04 0.02 1.07 0.01 0.01 1.57
544473576 2026:269 3 99.0% 92.4% 100.0% 9.76 ± 0.02 9.74 ± 0.04 -0.02 -0.93 0.02 0.01 0.45
544476520 2026:269 5 100.0% 100.0% 100.0% 6.11 ± 0.02 6.11 ± 0.03 -0.01 -0.34 0.01 -0.00 1.11
544479056 2026:269 4 100.0% 100.0% 100.0% 6.56 ± 0.02 6.56 ± 0.03 -0.00 -0.12 0.04 0.00 1.21
544480992 2026:269 6 98.8% 98.5% 100.0% 9.31 ± 0.02 9.31 ± 0.03 0.00 0.23 -0.01 -0.00 1.10
544482352 2026:269 4 97.7% 96.8% 100.0% 9.57 ± 0.02 9.54 ± 0.04 -0.03 -1.65 -0.02 -0.00 0.89
565577264 2026:267 7 99.8% 99.8% 100.0% 8.82 ± 0.03 8.87 ± 0.05 0.05 1.68 -0.02 0.00 3.05
611452320 2026:267 3 100.0% 100.0% 100.0% 7.32 ± 0.05 7.33 ± 0.05 0.01 0.19 0.04 0.02 3.70
611845440 2026:267 3 100.0% 100.0% 100.0% 7.67 ± 0.02 7.69 ± 0.03 0.02 1.04 0.03 0.00 1.08
611845944 2026:267 3 99.5% 99.4% 100.0% 9.47 ± 0.02 9.46 ± 0.03 -0.00 -0.16 0.01 0.00 0.65
611847680 2026:267 3 100.0% 100.0% 100.0% 7.47 ± 0.02 7.50 ± 0.04 0.03 1.32 0.04 0.01 0.67
611851872 2026:267 3 99.3% 96.5% 99.8% 9.43 ± 0.02 9.42 ± 0.04 -0.00 -0.24 0.01 0.01 1.48
611851888 2026:267 2 99.8% 99.8% 100.0% 9.14 ± 0.02 9.16 ± 0.03 0.03 1.28 0.02 0.00 1.37
612371080 2026:265 6 99.9% 99.1% 100.0% 9.52 ± 0.02 9.53 ± 0.05 0.02 0.94 -0.01 -0.01 0.49
612375128 2026:265 4 99.2% 95.4% 99.6% 9.76 ± 0.02 9.76 ± 0.06 -0.01 -0.43 0.01 0.00 0.67
612766568 2026:274 3 99.8% 99.6% 99.9% 9.19 ± 0.02 9.22 ± 0.03 0.03 1.56 -0.03 -0.00 0.31
612900952 2026:274 4 99.8% 99.6% 100.0% 9.29 ± 0.02 9.31 ± 0.05 0.02 1.09 0.01 0.01 0.76
613158304 2026:272 3 99.9% 99.9% 100.0% 8.55 ± 0.02 8.60 ± 0.03 0.05 2.44 -0.03 -0.00 0.73
613161376 2026:272 2 99.9% 99.9% 100.0% 8.33 ± 0.02 8.37 ± 0.04 0.04 2.08 0.04 0.01 1.55
613161856 2026:272 4 99.9% 99.9% 100.0% 8.63 ± 0.02 8.65 ± 0.04 0.02 1.07 0.02 0.01 0.64
613163336 2026:272 3 100.0% 100.0% 100.0% 6.86 ± 0.02 6.89 ± 0.03 0.03 1.51 -0.02 0.00 0.61
613163344 2026:272 3 100.0% 100.0% 100.0% 7.05 ± 0.02 7.09 ± 0.03 0.04 2.15 0.01 0.00 0.62
613946528 2026:273 9 100.0% 100.0% 100.0% 7.40 ± 0.02 7.42 ± 0.03 0.02 1.17 0.03 0.00 1.27
613947672 2026:273 9 99.5% 99.3% 100.0% 9.04 ± 0.02 9.07 ± 0.05 0.03 1.43 0.03 -0.01 1.23
663751264 2026:269 3 99.7% 99.6% 100.0% 9.04 ± 0.02 9.08 ± 0.04 0.04 2.17 0.01 0.00 2.27
663885776 2026:269 4 99.9% 99.9% 100.0% 8.33 ± 0.02 8.34 ± 0.03 0.02 0.90 0.02 -0.00 0.96
663886224 2026:269 4 99.7% 97.8% 100.0% 9.37 ± 0.02 9.38 ± 0.03 0.01 0.25 0.03 -0.00 2.34
852492448 2026:267 3 99.3% 96.6% 100.0% 9.56 ± 0.02 9.57 ± 0.05 0.01 0.57 0.07 0.00 1.32
852494280 2026:267 3 99.4% 99.2% 100.0% 8.98 ± 0.02 9.01 ± 0.04 0.03 1.69 0.07 0.01 0.35
854210992 2026:267 3 99.9% 99.9% 100.0% 7.93 ± 0.02 7.97 ± 0.03 0.04 1.96 0.04 0.00 -0.13
854211776 2026:267 3 99.9% 99.9% 100.0% 7.91 ± 0.02 7.95 ± 0.03 0.05 2.27 0.05 0.00 1.21
897585192 2026:270 4 100.0% 100.0% 100.0% 7.16 ± 0.02 7.17 ± 0.04 0.01 0.39 0.02 0.01 0.39
897596984 2026:266 3 98.9% 98.9% 100.0% 8.88 ± 0.02 8.88 ± 0.03 -0.00 -0.12 -0.02 -0.00 1.57
926822592 2026:267 3 100.0% 100.0% 100.0% 7.47 ± 0.02 7.51 ± 0.03 0.04 2.04 0.05 0.00 1.89
998115624 2026:275 3 98.7% 98.6% 100.0% 8.53 ± 0.02 8.57 ± 0.03 0.05 2.32 -0.02 0.00 1.33
998116512 2026:275 3 100.0% 100.0% 100.0% 6.94 ± 0.02 6.96 ± 0.03 0.02 1.11 0.01 0.00 2.45
1007817416 2026:274 12 99.9% 99.9% 100.0% 8.51 ± 0.02 8.55 ± 0.04 0.03 1.68 -0.01 -0.00 1.64
1007830024 2026:274 11 99.9% 99.9% 100.0% 7.66 ± 0.02 7.68 ± 0.03 0.02 0.86 0.01 0.00 1.49
1128273064 2026:276 2 98.9% 98.8% 100.0% 9.18 ± 0.02 9.22 ± 0.04 0.05 2.31 -0.01 0.01 1.96
1174279704 2026:267 16 100.0% 100.0% 100.0% 6.11 ± 0.14 6.33 ± 0.20 0.22 1.54 -0.01 0.02 3.58
1203256784 2026:265 7 100.0% 100.0% 100.0% 8.10 ± 0.08 8.04 ± 0.09 -0.06 -0.80 0.01 -0.02 3.14

Magnitude not Updated

These are stars whose magnitudes are not being updated in the supplement.

AGASC ID Last Obs nobs nbad nfail fok fmag est ok 3 f5 arcsec magcatalog magobs δmag cat δmag/σmag δmag δσ color
2236896 2026:275 4 99.9% 99.9% 100.0% 7.02 ± 0.02 7.03 ± 0.03 0.02 0.80 0.00 0.00 1.63
2361128 2026:275 6 99.0% 99.0% 100.0% 7.94 ± 0.02 7.95 ± 0.03 0.01 0.72 0.00 0.00 1.80
2363400 2026:275 4 99.6% 99.6% 100.0% 7.86 ± 0.02 7.88 ± 0.03 0.02 0.94 0.00 0.00 1.08
2366368 2026:275 4 99.6% 99.6% 100.0% 8.25 ± 0.02 8.28 ± 0.03 0.03 1.61 0.00 0.00 0.95
2367696 2026:275 4 98.3% 98.2% 100.0% 8.74 ± 0.02 8.75 ± 0.04 0.02 0.86 0.00 0.00 1.22
2494784 2026:274 5 99.9% 99.9% 100.0% 9.08 ± 0.02 9.10 ± 0.03 0.02 1.14 0.00 0.00 1.13
2495584 2026:274 4 99.8% 99.8% 100.0% 9.13 ± 0.02 9.14 ± 0.03 0.02 0.90 0.00 0.00 1.19
2884168 2026:274 2 99.9% 99.9% 100.0% 8.73 ± 0.02 8.75 ± 0.03 0.02 0.84 0.00 0.00 1.34
4591520 2026:276 14 100.0% 99.9% 100.0% 8.73 ± 0.02 8.79 ± 0.04 0.06 3.07 0.00 0.00 1.21
4592632 2026:276 18 99.9% 99.9% 100.0% 8.21 ± 0.02 8.26 ± 0.03 0.05 2.30 0.00 0.00 1.18
4718696 2026:276 20 100.0% 100.0% 100.0% 7.55 ± 0.02 7.59 ± 0.03 0.04 1.91 0.00 0.00 1.20
4719696 2026:276 15 99.2% 99.2% 100.0% 8.54 ± 0.02 8.59 ± 0.03 0.05 2.66 0.00 0.00 0.73
4723544 2026:274 9 99.7% 99.7% 100.0% 8.71 ± 0.02 8.75 ± 0.04 0.04 2.15 0.00 0.00 0.84
15077064 2026:275 5 99.2% 99.0% 100.0% 9.53 ± 0.02 9.55 ± 0.03 0.02 1.07 0.00 0.00 1.77
15209208 2026:275 2 99.9% 99.9% 100.0% 8.91 ± 0.02 8.92 ± 0.04 0.01 0.52 0.00 0.00 0.49
56495096 2026:269 3 99.9% 99.9% 100.0% 8.39 ± 0.02 8.42 ± 0.03 0.03 1.62 0.00 0.00 2.09
56631968 2026:269 2 100.0% 100.0% 100.0% 8.26 ± 0.02 8.30 ± 0.03 0.04 1.93 0.00 0.00 1.38
58720672 2026:271 18 99.7% 99.7% 100.0% 7.87 ± 0.02 7.90 ± 0.03 0.03 1.50 0.00 0.00 1.99
58721400 2026:271 12 99.6% 99.6% 100.0% 8.26 ± 0.02 8.29 ± 0.04 0.02 1.23 0.00 0.00 0.59
58721432 2026:271 14 99.4% 99.4% 100.0% 8.57 ± 0.02 8.58 ± 0.04 0.01 0.72 0.00 0.00 3.19
58852048 2026:271 21 99.8% 99.8% 100.0% 8.36 ± 0.02 8.38 ± 0.04 0.02 1.08 0.00 0.00 0.15
73151968 2026:269 2 99.9% 99.9% 100.0% 7.43 ± 0.02 7.43 ± 0.03 -0.00 -0.21 0.00 0.00 1.36
73152248 2026:269 9 97.4% 96.8% 100.0% 8.77 ± 0.02 8.81 ± 0.05 0.04 1.98 0.00 0.00 0.78
73155248 2026:269 15 99.5% 99.5% 100.0% 7.85 ± 0.02 7.87 ± 0.03 0.01 0.67 0.00 0.00 0.35
73155752 2026:269 7 99.9% 99.9% 100.0% 8.13 ± 0.02 8.16 ± 0.03 0.03 1.31 0.00 0.00 2.59
73157368 2026:269 7 99.6% 99.5% 100.0% 8.69 ± 0.02 8.72 ± 0.03 0.03 1.63 0.00 0.00 0.61
73159896 2026:269 14 99.9% 99.9% 100.0% 6.86 ± 0.02 6.86 ± 0.03 -0.00 -0.03 0.00 0.00 1.13
76552912 2026:275 41 99.7% 99.7% 100.0% 7.86 ± 0.02 7.89 ± 0.04 0.03 1.68 0.00 0.00 1.49
76553200 2026:275 40 99.3% 99.2% 100.0% 8.41 ± 0.02 8.45 ± 0.04 0.05 2.40 0.00 0.00 0.58
76555584 2026:275 8 99.5% 99.4% 100.0% 8.59 ± 0.02 8.64 ± 0.03 0.05 2.41 0.00 0.00 1.36
76556792 2026:275 29 99.2% 99.1% 100.0% 8.53 ± 0.02 8.57 ± 0.04 0.04 1.90 0.00 0.00 1.49
76811520 2026:272 3 99.7% 99.6% 99.9% 8.88 ± 0.02 8.92 ± 0.05 0.04 2.17 0.00 0.00 1.99
76813200 2026:269 11 99.9% 99.9% 100.0% 8.09 ± 0.02 8.15 ± 0.03 0.06 2.90 0.00 0.00 0.71
76815720 2026:269 6 99.3% 96.9% 99.5% 9.57 ± 0.02 9.60 ± 0.05 0.02 1.17 0.00 0.00 1.19
76816080 2026:269 16 99.8% 99.8% 100.0% 8.42 ± 0.02 8.42 ± 0.03 0.01 0.40 0.00 0.00 1.22
76816336 2026:269 19 99.7% 99.7% 100.0% 8.64 ± 0.02 8.67 ± 0.04 0.03 1.52 0.00 0.00 0.94
76945032 2026:272 5 99.3% 99.3% 100.0% 8.85 ± 0.02 8.88 ± 0.04 0.04 1.91 0.00 0.00 1.18
76945832 2026:272 4 99.5% 99.5% 100.0% 8.13 ± 0.02 8.17 ± 0.04 0.03 1.68 0.00 0.00 1.53
76946376 2026:272 4 99.8% 99.8% 100.0% 8.14 ± 0.02 8.18 ± 0.04 0.04 1.85 0.00 0.00 0.71
76946856 2026:272 4 100.0% 100.0% 100.0% 6.76 ± 0.02 6.78 ± 0.03 0.02 0.91 0.00 0.00 1.25
77476736 2026:275 39 100.0% 100.0% 100.0% 7.00 ± 0.02 7.02 ± 0.04 0.02 1.17 0.00 0.00 1.34
77477400 2026:272 22 99.7% 99.6% 100.0% 8.55 ± 0.02 8.59 ± 0.05 0.04 1.95 0.00 0.00 2.09
78120992 2026:275 5 99.6% 99.6% 100.0% 8.94 ± 0.02 8.92 ± 0.03 -0.02 -0.95 0.00 0.00 0.80
78121264 2026:275 4 99.6% 99.6% 100.0% 8.16 ± 0.02 8.20 ± 0.03 0.04 1.95 0.00 0.00 0.49
78125632 2026:275 4 99.2% 99.2% 100.0% 8.73 ± 0.02 8.73 ± 0.04 0.00 0.21 0.00 0.00 1.29
78127432 2026:275 3 98.8% 98.7% 100.0% 8.47 ± 0.02 8.50 ± 0.03 0.03 1.51 0.00 0.00 1.39
78128936 2026:275 4 99.8% 99.8% 100.0% 8.62 ± 0.02 8.64 ± 0.03 0.02 1.10 0.00 0.00 1.76
79177856 2026:275 6 99.9% 99.9% 100.0% 7.51 ± 0.02 7.51 ± 0.03 0.01 0.31 0.00 0.00 1.14
152310496 2026:270 4 100.0% 100.0% 100.0% 8.98 ± 0.02 8.98 ± 0.03 0.00 0.19 0.00 0.00 1.30
152319528 2026:270 2 100.0% 100.0% 100.0% 6.69 ± 0.02 6.72 ± 0.03 0.03 1.50 0.00 0.00 1.43
152320096 2026:270 2 99.9% 99.9% 100.0% 8.70 ± 0.02 8.73 ± 0.03 0.03 1.74 0.00 0.00 1.33
154404120 2026:269 2 99.9% 99.9% 100.0% 8.53 ± 0.02 8.55 ± 0.04 0.02 0.99 0.00 0.00 0.94
154409024 2026:269 4 99.9% 99.9% 100.0% 8.79 ± 0.02 8.81 ± 0.03 0.02 1.02 0.00 0.00 0.58
154409856 2026:269 4 99.8% 99.8% 100.0% 8.95 ± 0.02 8.99 ± 0.03 0.04 1.77 0.00 0.00 0.67
154409888 2026:269 2 100.0% 100.0% 100.0% 8.64 ± 0.02 8.64 ± 0.04 -0.00 -0.03 0.00 0.00 1.20
154410080 2026:269 3 100.0% 100.0% 100.0% 7.73 ± 0.02 7.75 ± 0.03 0.02 1.22 0.00 0.00 1.14
154411344 2026:269 2 99.9% 99.9% 100.0% 8.27 ± 0.02 8.29 ± 0.03 0.02 0.95 0.00 0.00 1.31
154534888 2026:276 22 99.5% 99.5% 100.0% 9.16 ± 0.02 9.22 ± 0.04 0.06 3.23 0.00 0.00 1.85
154535176 2026:276 22 99.6% 99.6% 100.0% 8.78 ± 0.02 8.84 ± 0.04 0.05 2.61 0.00 0.00 0.51
154666768 2026:268 6 100.0% 100.0% 100.0% 7.70 ± 0.02 7.75 ± 0.03 0.05 2.41 0.00 0.00 0.65
167777608 2026:269 3 98.3% 94.2% 99.7% 9.63 ± 0.02 9.67 ± 0.08 0.04 1.90 0.00 0.00 1.00
167778816 2026:269 4 99.7% 98.8% 100.0% 9.05 ± 0.02 9.09 ± 0.05 0.04 1.90 0.00 0.00 1.57
167783648 2026:269 3 100.0% 100.0% 100.0% 5.45 ± 0.02 5.46 ± 0.03 0.01 0.55 0.00 0.00 1.82
182861632 2026:269 15 100.0% 100.0% 100.0% 7.03 ± 0.02 7.02 ± 0.03 -0.01 -0.71 0.00 0.00 0.38
182863216 2026:269 9 100.0% 100.0% 100.0% 7.04 ± 0.02 7.05 ± 0.03 0.00 0.18 0.00 0.00 0.27
182864056 2026:269 5 100.0% 100.0% 100.0% 6.60 ± 0.02 6.62 ± 0.03 0.02 1.14 0.00 0.00 0.85
182865792 2026:269 11 100.0% 100.0% 100.0% 6.93 ± 0.02 6.97 ± 0.03 0.04 1.94 0.00 0.00 0.35
182867304 2026:269 10 100.0% 100.0% 100.0% 6.63 ± 0.02 6.66 ± 0.03 0.03 1.66 0.00 0.00 0.22
195831864 2026:270 4 99.5% 99.2% 100.0% 8.86 ± 0.02 8.89 ± 0.04 0.03 1.56 0.00 0.00 0.80
196347040 2026:270 6 99.8% 99.8% 100.0% 8.05 ± 0.02 8.09 ± 0.04 0.04 1.82 0.00 0.00 0.57
196347904 2026:270 6 99.8% 98.7% 100.0% 9.18 ± 0.02 9.23 ± 0.05 0.05 2.65 0.00 0.00 0.68
196360160 2026:270 3 100.0% 100.0% 100.0% 6.11 ± 0.02 6.15 ± 0.03 0.03 1.60 0.00 0.00 0.27
373817952 2026:270 242 99.7% 99.6% 100.0% 8.73 ± 0.02 8.76 ± 0.04 0.03 1.38 0.00 0.00 1.53
374357808 2026:270 200 99.8% 99.7% 100.0% 8.66 ± 0.02 8.69 ± 0.04 0.03 1.43 0.00 0.00 1.25
375534552 2026:270 173 99.8% 99.8% 100.0% 8.18 ± 0.02 8.22 ± 0.04 0.04 1.87 0.00 0.00 0.17
376057824 2026:270 227 99.8% 99.8% 100.0% 8.32 ± 0.02 8.35 ± 0.04 0.04 1.76 0.00 0.00 0.54
376070040 2026:270 244 99.8% 99.8% 100.0% 8.40 ± 0.02 8.43 ± 0.04 0.03 1.56 0.00 0.00 0.36
451417912 2026:276 8 99.9% 99.9% 100.0% 8.66 ± 0.02 8.70 ± 0.04 0.04 2.14 0.00 0.00 1.17
451419088 2026:276 8 100.0% 100.0% 100.0% 8.23 ± 0.02 8.29 ± 0.03 0.06 2.89 0.00 0.00 1.49
502661504 2026:276 3 99.9% 99.9% 100.0% 9.14 ± 0.02 9.13 ± 0.03 -0.00 -0.13 0.00 0.00 0.80
502661768 2026:276 8 100.0% 100.0% 100.0% 7.69 ± 0.02 7.70 ± 0.03 0.01 0.49 0.00 0.00 1.25
502662232 2026:276 8 99.9% 99.9% 100.0% 7.95 ± 0.02 7.98 ± 0.04 0.02 1.17 0.00 0.00 0.55
502662792 2026:276 7 99.9% 99.8% 100.0% 8.95 ± 0.02 8.97 ± 0.03 0.03 1.26 0.00 0.00 0.75
502664824 2026:276 6 100.0% 100.0% 100.0% 6.86 ± 0.02 6.87 ± 0.03 0.01 0.70 0.00 0.00 1.79
502669520 2026:276 8 99.9% 99.9% 100.0% 7.99 ± 0.02 8.01 ± 0.03 0.02 1.21 0.00 0.00 1.26
502669584 2026:276 4 100.0% 100.0% 100.0% 5.73 ± 0.02 5.75 ± 0.03 0.02 0.79 0.00 0.00 1.70
544478688 2026:269 6 99.9% 99.9% 100.0% 7.91 ± 0.02 7.92 ± 0.03 0.01 0.46 0.00 0.00 0.25
549727176 2026:275 6 99.9% 99.9% 100.0% 8.00 ± 0.02 8.05 ± 0.04 0.05 2.41 0.00 0.00 0.64
549736080 2026:275 26 100.0% 100.0% 100.0% 6.22 ± 0.16 6.17 ± 0.18 -0.05 -0.31 0.00 0.00 4.75
550770640 2026:275 14 100.0% 100.0% 100.0% 7.73 ± 0.02 7.78 ± 0.03 0.05 2.51 0.00 0.00 0.08
551288960 2026:275 29 100.0% 100.0% 100.0% 7.57 ± 0.02 7.61 ± 0.03 0.04 2.16 0.00 0.00 0.52
551298432 2026:275 23 99.9% 99.9% 100.0% 8.46 ± 0.02 8.50 ± 0.04 0.04 2.24 0.00 0.00 1.36
565576616 2026:267 7 100.0% 100.0% 100.0% 8.33 ± 0.02 8.38 ± 0.03 0.05 2.41 0.00 0.00 2.38
565580000 2026:267 7 99.9% 99.9% 100.0% 8.90 ± 0.02 8.96 ± 0.04 0.06 3.14 0.00 0.00 2.94
565587096 2026:267 8 99.9% 99.9% 100.0% 8.48 ± 0.02 8.52 ± 0.04 0.05 2.29 0.00 0.00 1.62
565588200 2026:267 8 99.7% 99.6% 100.0% 8.98 ± 0.02 9.02 ± 0.05 0.04 2.07 0.00 0.00 0.54
612369216 2026:265 10 99.8% 99.8% 100.0% 8.48 ± 0.02 8.52 ± 0.04 0.04 1.85 0.00 0.00 0.49
612505072 2026:265 10 99.9% 99.7% 100.0% 8.58 ± 0.02 8.62 ± 0.04 0.04 1.78 0.00 0.00 0.74
612892704 2026:265 6 100.0% 99.9% 100.0% 8.61 ± 0.02 8.69 ± 0.03 0.08 4.09 0.00 0.00 1.65
612894184 2026:274 4 99.9% 99.8% 100.0% 9.07 ± 0.02 9.11 ± 0.03 0.04 2.24 0.00 0.00 0.87
612895024 2026:274 4 99.7% 99.6% 100.0% 8.98 ± 0.02 9.03 ± 0.04 0.05 2.57 0.00 0.00 0.63
612895088 2026:274 4 99.8% 99.8% 100.0% 8.61 ± 0.02 8.65 ± 0.04 0.04 1.94 0.00 0.00 0.50
612900200 2026:274 4 99.3% 99.2% 100.0% 8.88 ± 0.02 8.89 ± 0.04 0.01 0.50 0.00 0.00 1.24
612901400 2026:274 3 100.0% 100.0% 100.0% 7.47 ± 0.02 7.43 ± 0.03 -0.04 -1.95 0.00 0.00 0.55
612901616 2026:274 3 100.0% 100.0% 100.0% 5.67 ± 0.02 5.69 ± 0.03 0.01 0.68 0.00 0.00 1.27
613155616 2026:272 4 99.4% 99.3% 99.9% 8.87 ± 0.02 8.92 ± 0.03 0.05 2.41 0.00 0.00 1.72
613156920 2026:272 4 99.7% 99.7% 100.0% 8.68 ± 0.02 8.72 ± 0.03 0.04 2.11 0.00 0.00 0.59
613159720 2026:272 12 99.9% 99.8% 100.0% 8.99 ± 0.02 9.02 ± 0.04 0.03 1.55 0.00 0.00 1.45
613949376 2026:273 7 99.9% 99.9% 100.0% 7.75 ± 0.02 7.79 ± 0.03 0.03 1.65 0.00 0.00 1.70
613949424 2026:273 8 99.5% 99.3% 100.0% 9.02 ± 0.02 9.05 ± 0.05 0.04 1.87 0.00 0.00 1.84
613953776 2026:273 8 99.8% 99.8% 100.0% 7.46 ± 0.07 7.39 ± 0.04 -0.08 -1.11 0.00 0.00 3.77
684733312 2026:269 8 99.9% 99.9% 100.0% 7.63 ± 0.02 7.64 ± 0.03 0.02 0.80 0.00 0.00 1.93
688397848 2026:269 21 99.5% 99.5% 100.0% 8.59 ± 0.02 8.60 ± 0.04 0.01 0.48 0.00 0.00 0.07
820119168 2026:272 7 99.9% 99.9% 100.0% 8.01 ± 0.02 8.02 ± 0.03 0.01 0.60 0.00 0.00 0.91
820119768 2026:272 7 100.0% 100.0% 100.0% 7.92 ± 0.02 7.92 ± 0.03 -0.00 -0.13 0.00 0.00 0.26
820121744 2026:272 8 100.0% 100.0% 100.0% 6.70 ± 0.02 6.69 ± 0.04 -0.00 -0.16 0.00 0.00 3.07
820641816 2026:272 7 100.0% 100.0% 100.0% 7.14 ± 0.02 7.16 ± 0.03 0.02 1.03 0.00 0.00 2.23
897587816 2026:270 8 100.0% 100.0% 100.0% 7.18 ± 0.02 7.19 ± 0.03 0.01 0.32 0.00 0.00 1.95
897610120 2026:270 21 99.7% 99.4% 100.0% 8.46 ± 0.02 8.46 ± 0.04 0.00 0.07 0.00 0.00 1.19
897612528 2026:270 14 100.0% 100.0% 100.0% 7.18 ± 0.02 7.18 ± 0.03 0.01 0.25 0.00 0.00 2.17
897616624 2026:270 9 100.0% 100.0% 100.0% 6.11 ± 0.02 6.12 ± 0.03 0.01 0.33 0.00 0.00 1.51
998117432 2026:275 3 99.4% 99.2% 100.0% 8.93 ± 0.02 8.99 ± 0.03 0.06 2.77 0.00 0.00 1.25
998118584 2026:275 7 99.7% 99.7% 100.0% 7.82 ± 0.02 7.83 ± 0.03 0.01 0.65 0.00 0.00 1.45
998124408 2026:275 5 99.3% 99.3% 100.0% 7.27 ± 0.02 7.29 ± 0.03 0.03 1.33 0.00 0.00 1.70
1007162896 2026:274 3 99.9% 99.9% 100.0% 7.91 ± 0.02 7.96 ± 0.04 0.05 2.26 0.00 0.00 1.73
1007683696 2026:274 2 100.0% 100.0% 100.0% 7.43 ± 0.02 7.45 ± 0.03 0.02 0.85 0.00 0.00 1.65
1007686792 2026:274 12 99.9% 99.9% 100.0% 7.83 ± 0.02 7.87 ± 0.03 0.04 1.86 0.00 0.00 -0.20
1007687792 2026:274 16 100.0% 100.0% 100.0% 7.14 ± 0.02 7.15 ± 0.03 0.02 0.84 0.00 0.00 1.48
1007693552 2026:274 2 99.8% 99.8% 100.0% 7.96 ± 0.02 7.98 ± 0.04 0.02 0.88 0.00 0.00 0.05
1007813344 2026:274 15 100.0% 100.0% 100.0% 8.14 ± 0.02 8.19 ± 0.03 0.05 2.74 0.00 0.00 1.60
1128270984 2026:276 5 97.7% 97.6% 100.0% 9.07 ± 0.02 9.11 ± 0.03 0.04 2.11 0.00 0.00 0.50
1128271120 2026:276 12 99.9% 99.9% 99.9% 8.73 ± 0.02 8.72 ± 0.04 -0.00 -0.23 0.00 0.00 1.27
1128273656 2026:276 29 99.9% 99.9% 100.0% 7.60 ± 0.02 7.62 ± 0.03 0.02 0.95 0.00 0.00 0.86
1128274528 2026:276 18 99.8% 99.8% 100.0% 8.21 ± 0.02 8.24 ± 0.04 0.04 1.85 0.00 0.00 -0.15
1128278048 2026:271 5 98.5% 98.5% 100.0% 8.72 ± 0.02 8.76 ± 0.04 0.04 1.98 0.00 0.00 1.40
1169555800 2026:265 9 99.5% 99.5% 100.0% 8.48 ± 0.02 8.51 ± 0.04 0.04 1.83 0.00 0.00 1.16
1169557456 2026:265 7 99.9% 99.9% 100.0% 8.55 ± 0.02 8.61 ± 0.04 0.05 2.70 0.00 0.00 2.48
1174152520 2026:272 24 100.0% 100.0% 100.0% 7.56 ± 0.02 7.60 ± 0.03 0.04 1.87 0.00 0.00 0.82
1174156832 2026:275 31 100.0% 100.0% 100.0% 7.02 ± 0.02 7.03 ± 0.03 0.02 0.79 0.00 0.00 1.45
1174162560 2026:275 23 100.0% 100.0% 100.0% 5.89 ± 0.07 5.78 ± 0.06 -0.11 -1.59 0.00 0.00 2.88
1174165072 2026:275 30 100.0% 100.0% 100.0% 6.63 ± 0.02 6.62 ± 0.04 -0.01 -0.34 0.00 0.00 -0.10
1174174824 2026:275 31 100.0% 100.0% 100.0% 7.28 ± 0.02 7.31 ± 0.03 0.03 1.38 0.00 0.00 1.91
1174176264 2026:275 12 100.0% 100.0% 100.0% 7.57 ± 0.02 7.61 ± 0.03 0.03 1.70 0.00 0.00 0.37
1174281080 2026:267 14 100.0% 100.0% 100.0% 7.09 ± 0.02 7.09 ± 0.03 0.00 0.15 0.00 0.00 -0.00
1174282480 2026:267 10 100.0% 100.0% 100.0% 7.00 ± 0.04 7.01 ± 0.04 0.02 0.43 0.00 0.00 2.68
1203245384 2026:265 21 99.8% 99.8% 100.0% 8.53 ± 0.02 8.55 ± 0.03 0.02 1.01 0.00 0.00 1.52
1203248696 2026:265 3 99.3% 99.3% 100.0% 8.95 ± 0.02 8.99 ± 0.03 0.03 1.64 0.00 0.00 0.63

  • sample: One sample of ACA image telemetry. This could be a real image readout or it could be a null 4x4 image when the ACA is not tracking. Be aware that the sample period is faster for null 4x4 images (1.025 sec) than for typical 6x6 or 8x8 tracked images (2.05 or 4.1 sec respectively).
  • Kalman samples: Subset of samples when ACA could be tracking stars (AOPCADMD == NPNT & AOACASEQ == KALM)
  • dr3: Subset of tracked Kalman samples with radial centroid residual < 3 arcsec. This corresponds to "high quality" readouts. This effectively includes the track subset (AOACFCT == TRAK) because readouts with no TRAK are assigned an infinite centroid residual.
  • dbox5: Subset of tracked Kalman samples with centroid residual within a 5 arcsec box. This corresponds to spatial filter used by the OBC for inclusion in Kalman filter. This effectively includes the track subset (AOACFCT == TRAK) because readouts with no TRAK are assigned an infinite centroid residual.
  • track: Subset of Kalman samples where the image is being tracked (AOACFCT == TRAK)
  • sat_pix: Subset of Kalman samples with saturated pixel flag OK (AOACISP == OK)
  • ion_rad: Subset of Kalman samples with ionizing radiation flag OK (AOACIIR == OK)
  • mag_est_ok: Subset of Kalman samples that have a magnitude estimate (track & ion_rad)
  • n_total: Total number of sample regardless of OBC PCAD status
  • n: Synonym for n_total
  • n_kalman: Number of Kalman samples
  • n_dr3: Number of dr3 samples.
  • n_dbox5: Number of dbox5 samples.
  • n_track: Number of track samples.
  • n_ok_3: Number of (track & sat_pix & ion_rad & dr3) samples
  • n_ok_5: Number of (track & sat_pix & ion_rad & dbox5) samples
  • n_mag_est_ok: Number of (track & ion_rad) samples
  • n_mag_est_ok_3: Number of (track & ion_rad & dr3) samples
  • n_mag_est_ok_5: Number of (track & ion_rad & dbox5) samples
  • f_dr3: Fraction of mag-est-ok samples with centroid residual < 3 arcsec((mag_est_ok & n_dr3)/n_mag_est_ok)
  • f_dbox5: Fraction of mag-est-ok samples with centroid within 5 arcsec box((mag_est_ok & n_dbox5)/n_mag_est_ok)
  • f_mag_est_ok: n_mag_est_ok_3/n_kalman. This is a measure of the fraction of time during an observation that a magnitude estimate is available.
  • f_mag_est_ok_3: n_mag_est_ok_3/n_kalman.
  • f_mag_est_ok_5: n_mag_est_ok_5/n_kalman.
  • f_ok: n_ok_5 / n_kalman. Same as f_ok_5
  • f_ok_3: n_ok_3 / n_kalman. This is a measure of the fraction of time during an observation that the Kalman filter is getting high-quality star centroids.
  • f_ok_5: n_ok_5 / n_kalman. This is a measure of the fraction of time during an observation that the Kalman filter is getting any star centroid at all. This includes measurements out to 5 arcsec box halfwidth, so potentially 7 arcsec radial offset.