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ACA Trending: Sep 2026

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

ACIS
Slope: -6.680e-03 STD: 6.864e-02

Slope: -1.678e-03 STD: 7.172e-02

Slope: -2.914e-03 STD: 5.746e-02
 

Slope: -1.045e-03 STD: 5.718e-02

Slope: -2.268e-03 STD: 6.269e-02

Slope: -2.855e-03 STD: 8.804e-02
 
HRCI
Slope: -4.293e-04 STD: 1.135e-02

Slope: 3.396e-04 STD: 1.095e-02

Slope: 9.901e-04 STD: 1.008e-02

Slope: 2.934e-03 STD: 7.114e-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 7.224 6.711 7.386 100 0 0 33
2 ACIS-2 7.095 6.132 7.260 100 0 0 50
3 ACIS-3 7.368 6.625 7.520 100 0 0 28
4 ACIS-4 7.190 7.014 7.348 100 0 0 52
5 ACIS-5 7.186 6.425 7.341 100 0 0 64
6 ACIS-6 7.267 6.685 7.427 100 0 0 22
7 HRC-I-1 6.811 6.722 6.846 100 0 0 12
8 HRC-I-2 6.851 6.571 6.897 100 0 0 13
9 HRC-I-3 6.872 6.083 6.913 100 0 0 11
10 HRC-I-4 6.798 6.733 6.825 100 0 0 3
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: 4.076e-03 STD: 1.632e-01

Slope: 4.076e-03 STD: 1.632e-01

Slope: 2.617e-05 STD: 3.667e-05

Slope: 3.667e-05 STD: 1.173e-03
1
Slope: 8.561e-03 STD: 1.759e-01

Slope: 8.561e-03 STD: 1.759e-01

Slope: 1.971e-05 STD: 1.409e-05

Slope: 1.409e-05 STD: 1.614e-03
2
Slope: -1.766e-02 STD: 1.484e-01

Slope: -1.766e-02 STD: 1.484e-01

Slope: 3.434e-05 STD: 4.714e-05

Slope: 4.714e-05 STD: 1.230e-03
3
Slope: 1.806e-03 STD: 6.684e-02

Slope: 1.806e-03 STD: 6.684e-02

Slope: -5.387e-04 STD: -3.912e-04

Slope: -3.912e-04 STD: 1.382e-02
4
Slope: 3.817e-04 STD: 1.402e-02

Slope: 3.817e-04 STD: 1.402e-02

Slope: -3.646e-04 STD: -1.927e-04

Slope: -1.927e-04 STD: 1.251e-02
5
Slope: 1.253e-04 STD: 1.984e-02

Slope: 1.253e-04 STD: 1.984e-02

Slope: -1.417e-04 STD: 7.054e-05

Slope: 7.054e-05 STD: 1.126e-02
6
Slope: 5.736e-04 STD: 2.035e-02

Slope: 5.736e-04 STD: 2.035e-02

Slope: -8.144e-05 STD: 1.223e-04

Slope: 1.223e-04 STD: 1.600e-02
7
Slope: 2.342e-04 STD: 1.912e-02

Slope: 2.342e-04 STD: 1.912e-02

Slope: -2.552e-04 STD: -2.558e-04

Slope: -2.558e-04 STD: 1.922e-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
32.002e-051.882e-057.875e-03 903.669e-023.272e-02304041100.000.000.00
42.107e-051.720e-057.205e-03 904.117e-023.802e-02304038100.000.000.00
52.047e-051.653e-057.129e-03 904.633e-024.467e-02304016100.000.000.00
61.847e-051.713e-057.763e-03 905.281e-025.282e-02303996100.000.000.00
72.001e-051.798e-057.764e-03 875.615e-025.735e-02298919100.000.000.00
AVG1.251e-051.096e-054.717e-03 552.914e-022.820e-0218937662.500.000.00

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+001.251e-01 961.025e-021.216e-02304033100.000.000.00
10.000e+000.000e+001.203e-01 961.095e-021.356e-02304033100.000.000.00
20.000e+000.000e+001.213e-01 961.080e-021.335e-02304041100.000.000.00
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+004.584e-02 364.000e-034.883e-0311401337.500.000.00

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.