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ACA Trending: Apr 2026

Click an image to enlarge it. The slopes are in Mag / day.

ACIS
Slope: 4.828e-03 STD: 5.766e-02

Slope: 1.560e-03 STD: 6.264e-02

Slope: 1.818e-03 STD: 7.282e-02
 

Slope: 3.997e-03 STD: 5.508e-02

Slope: 3.252e-03 STD: 6.355e-02

Slope: 4.211e-03 STD: 6.013e-02
 
HRCI
Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan
HRCS
Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan
IDID StringMagnitudeData Quality (%)Total Data
AverageMinMaxGoodMarginalBad
1 ACIS-1 7.269 6.914 7.395 100 0 0 19
2 ACIS-2 7.102 4.995 7.287 100 0 0 63
3 ACIS-3 7.396 6.963 7.584 100 0 0 24
4 ACIS-4 7.204 6.415 7.376 100 0 0 65
5 ACIS-5 7.212 6.652 7.370 100 0 0 72
6 ACIS-6 7.327 6.117 7.438 100 0 0 21
7 HRC-I-1 6.800 6.767 6.829 100 0 0 2
8 HRC-I-2 6.840 6.767 6.859 100 0 0 1
9 HRC-I-3 6.873 6.810 6.896 100 0 0 2
10 HRC-I-4 6.794 6.775 6.808 100 0 0 1
11 HRC-S-1 0.000 0.000 0.000 0 0 0 0
12 HRC-S-2 0.000 0.000 0.000 0 0 0 0
13 HRC-S-3 0.000 0.000 0.000 0 0 0 0
14 HRC-S-4 0.000 0.000 0.000 0 0 0 0

Level 1 Slot Trending: Apr 2026

Click an image to enlarge it. The slopes are per day.

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: 1.287e-02 STD: 1.870e-01

Slope: 1.287e-02 STD: 1.870e-01

Slope: -5.246e-05 STD: -1.660e-04

Slope: -1.660e-04 STD: 1.302e-03
1
Slope: 6.263e-03 STD: 1.974e-01

Slope: 6.263e-03 STD: 1.974e-01

Slope: -8.096e-06 STD: -2.532e-05

Slope: -2.532e-05 STD: 9.844e-04
2
Slope: 2.246e-02 STD: 1.899e-01

Slope: 2.246e-02 STD: 1.899e-01

Slope: -6.003e-06 STD: -5.860e-05

Slope: -5.860e-05 STD: 1.018e-03
3
Slope: -7.801e-04 STD: 5.004e-02

Slope: -7.801e-04 STD: 5.004e-02

Slope: 3.484e-04 STD: 2.447e-04

Slope: 2.447e-04 STD: 7.971e-03
4
Slope: 2.535e-04 STD: 1.393e-02

Slope: 2.535e-04 STD: 1.393e-02

Slope: 4.491e-04 STD: 4.401e-04

Slope: 4.401e-04 STD: 8.899e-03
5
Slope: -7.952e-04 STD: 2.499e-02

Slope: -7.952e-04 STD: 2.499e-02

Slope: 3.645e-04 STD: 3.025e-04

Slope: 3.025e-04 STD: 8.557e-03
6
Slope: -5.123e-04 STD: 2.501e-02

Slope: -5.123e-04 STD: 2.501e-02

Slope: 4.126e-04 STD: 3.324e-04

Slope: 3.324e-04 STD: 1.199e-02
7
Slope: 2.751e-04 STD: 4.754e-02

Slope: 2.751e-04 STD: 4.754e-02

Slope: 1.008e-03 STD: 7.615e-04

Slope: 7.615e-04 STD: 4.122e-02

Note

pos_err: ((ra_err*cos(dec))^2 + dec_err^2)^0.5
diff: mag_aca - mag_aca_avg
slope: slope agaist time (sec)
std: standard deviation of the data

When looking at Guide Stars

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
10.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
20.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
32.230e-051.770e-058.829e-03 833.593e-023.400e-02317629100.000.000.00
42.280e-051.927e-057.976e-03 844.157e-023.989e-02317563100.000.000.00
52.297e-051.801e-058.078e-03 844.562e-024.520e-02317598100.000.000.00
62.339e-051.933e-058.315e-03 845.065e-025.092e-02317624100.000.000.00
72.126e-052.151e-051.009e-02 786.217e-026.220e-02317419100.000.000.00
AVG1.409e-051.198e-055.411e-03 512.949e-022.903e-0219847962.500.000.00

When Looking at FIDs

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+001.264e-01 901.039e-021.218e-02317622100.000.000.00
10.000e+000.000e+001.159e-01 901.091e-021.318e-02317622100.000.000.00
20.000e+000.000e+001.182e-01 901.102e-021.349e-02317631100.000.000.00
30.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
40.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
50.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
60.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
70.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
AVG0.000e+000.000e+004.506e-02 334.040e-034.857e-0311910937.500.000.00

When looking at Monitor Stars

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
10.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
20.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
30.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
40.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
50.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
60.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
70.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
AVG0.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00

If you have any questions about this page, please contact swolk@cfa.harvard.edu.