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ACA Trending: Sep 2026

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

ACIS
Slope: -1.140e-03 STD: 6.604e-02

Slope: -1.319e-05 STD: 7.468e-02

Slope: -9.848e-05 STD: 6.013e-02
 

Slope: -3.437e-04 STD: 5.516e-02

Slope: -4.789e-05 STD: 6.092e-02

Slope: -5.052e-04 STD: 8.079e-02
 
HRCI
Slope: 6.661e-04 STD: 1.433e-02

Slope: 4.855e-04 STD: 1.286e-02

Slope: 1.042e-03 STD: 1.370e-02

Slope: 3.118e-04 STD: 7.758e-03
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 7.226 5.026 7.386 100 0 0 46
2 ACIS-2 7.101 6.132 7.316 100 0 0 70
3 ACIS-3 7.376 6.625 7.543 100 0 0 41
4 ACIS-4 7.192 6.851 7.348 100 0 0 76
5 ACIS-5 7.193 6.425 7.353 100 0 0 84
6 ACIS-6 7.263 6.262 7.427 100 0 0 37
7 HRC-I-1 6.815 6.722 6.864 100 0 0 16
8 HRC-I-2 6.853 6.571 6.897 100 0 0 19
9 HRC-I-3 6.876 6.083 6.922 100 0 0 15
10 HRC-I-4 6.802 6.672 6.844 100 0 0 7
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: Sep 2026

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

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: -1.355e-04 STD: 1.703e-01

Slope: -1.355e-04 STD: 1.703e-01

Slope: 1.974e-05 STD: 2.169e-05

Slope: 2.169e-05 STD: 1.155e-03
1
Slope: -4.424e-03 STD: 2.176e-01

Slope: -4.424e-03 STD: 2.176e-01

Slope: 1.736e-05 STD: 1.789e-05

Slope: 1.789e-05 STD: 1.609e-03
2
Slope: 8.014e-04 STD: 1.495e-01

Slope: 8.014e-04 STD: 1.495e-01

Slope: 2.450e-05 STD: 2.905e-05

Slope: 2.905e-05 STD: 1.290e-03
3
Slope: 1.186e-03 STD: 7.437e-02

Slope: 1.186e-03 STD: 7.437e-02

Slope: -4.033e-04 STD: -3.089e-04

Slope: -3.089e-04 STD: 1.264e-02
4
Slope: 2.466e-04 STD: 1.421e-02

Slope: 2.466e-04 STD: 1.421e-02

Slope: -3.247e-04 STD: -2.719e-04

Slope: -2.719e-04 STD: 1.192e-02
5
Slope: -1.754e-05 STD: 1.732e-02

Slope: -1.754e-05 STD: 1.732e-02

Slope: -2.439e-04 STD: -1.882e-04

Slope: -1.882e-04 STD: 1.118e-02
6
Slope: 3.223e-04 STD: 1.892e-02

Slope: 3.223e-04 STD: 1.892e-02

Slope: -3.081e-04 STD: -2.589e-04

Slope: -2.589e-04 STD: 1.510e-02
7
Slope: 2.598e-06 STD: 1.911e-02

Slope: 2.598e-06 STD: 1.911e-02

Slope: -3.861e-04 STD: -4.481e-04

Slope: -4.481e-04 STD: 1.853e-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
31.644e-051.562e-057.017e-03 1283.562e-023.185e-02427825100.000.000.00
41.685e-051.452e-055.989e-03 1284.033e-023.701e-02427819100.000.000.00
51.616e-051.491e-055.959e-03 1284.530e-024.356e-02427792100.000.000.00
61.496e-051.480e-056.399e-03 1285.096e-025.082e-02427774100.000.000.00
71.629e-051.522e-056.525e-03 1255.386e-025.466e-02422666100.000.000.00
AVG1.009e-059.382e-063.986e-03 792.826e-022.724e-0226673462.500.000.00

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+001.045e-01 1371.032e-021.229e-02427815100.000.000.00
10.000e+000.000e+001.002e-01 1371.099e-021.362e-02427809100.000.000.00
20.000e+000.000e+001.012e-01 1371.082e-021.336e-02427821100.000.000.00
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+003.824e-02 514.017e-034.909e-0316043037.500.000.00

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.