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ACA Trending: Jul 2026

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

ACIS
Slope: -1.815e-03 STD: 4.772e-02

Slope: -1.734e-03 STD: 5.214e-02

Slope: 1.745e-03 STD: 5.993e-02
 

Slope: -7.549e-04 STD: 3.904e-02

Slope: -7.879e-04 STD: 4.082e-02

Slope: 1.990e-03 STD: 5.178e-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 7.225 6.773 7.348 100 0 0 44
2 ACIS-2 7.072 6.337 7.232 100 0 0 30
3 ACIS-3 7.382 6.369 7.699 100 0 0 31
4 ACIS-4 7.181 6.325 7.309 100 0 0 46
5 ACIS-5 7.191 5.319 7.326 98 0 1 66
6 ACIS-6 7.256 6.998 7.361 100 0 0 20
7 HRC-I-1 0.000 0.000 0.000 0 0 0 0
8 HRC-I-2 0.000 0.000 0.000 0 0 0 0
9 HRC-I-3 0.000 0.000 0.000 0 0 0 0
10 HRC-I-4 0.000 0.000 0.000 0 0 0 0
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: Jul 2026

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

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: 6.107e-03 STD: 7.999e-02

Slope: 6.107e-03 STD: 7.999e-02

Slope: -4.690e-06 STD: -5.120e-05

Slope: -5.120e-05 STD: 7.916e-04
1
Slope: 3.431e-03 STD: 5.354e-02

Slope: 3.431e-03 STD: 5.354e-02

Slope: -3.397e-05 STD: -6.172e-05

Slope: -6.172e-05 STD: 1.121e-03
2
Slope: 5.170e-03 STD: 6.602e-02

Slope: 5.170e-03 STD: 6.602e-02

Slope: -2.713e-05 STD: -4.388e-05

Slope: -4.388e-05 STD: 7.619e-04
3
Slope: -1.335e-03 STD: 2.425e-02

Slope: -1.335e-03 STD: 2.425e-02

Slope: 2.160e-04 STD: 4.592e-04

Slope: 4.592e-04 STD: 6.759e-03
4
Slope: -5.030e-04 STD: 1.725e-02

Slope: -5.030e-04 STD: 1.725e-02

Slope: 1.105e-04 STD: 2.708e-04

Slope: 2.708e-04 STD: 9.776e-03
5
Slope: 2.225e-04 STD: 1.772e-02

Slope: 2.225e-04 STD: 1.772e-02

Slope: 2.932e-04 STD: 4.480e-04

Slope: 4.480e-04 STD: 1.173e-02
6
Slope: -1.657e-04 STD: 1.582e-02

Slope: -1.657e-04 STD: 1.582e-02

Slope: 7.072e-05 STD: 1.963e-04

Slope: 1.963e-04 STD: 1.144e-02
7
Slope: -1.104e-03 STD: 3.521e-02

Slope: -1.104e-03 STD: 3.521e-02

Slope: 9.086e-05 STD: 2.454e-04

Slope: 2.454e-04 STD: 1.743e-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
31.706e-052.444e-057.127e-03 743.217e-023.084e-02310443100.000.000.00
41.473e-052.477e-057.930e-03 743.809e-023.757e-02310424100.000.000.00
51.634e-052.436e-058.066e-03 744.343e-024.384e-02310415100.000.000.00
61.712e-052.308e-058.729e-03 744.724e-024.817e-02310432100.000.000.00
71.660e-051.896e-051.047e-02 735.203e-025.146e-02310426100.000.000.00
AVG1.023e-051.445e-055.290e-03 462.662e-022.649e-0219401762.500.000.00

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+001.310e-01 791.009e-021.161e-02310444100.000.000.00
10.000e+000.000e+001.235e-01 791.116e-021.358e-02310448100.000.000.00
20.000e+000.000e+001.288e-01 791.075e-021.311e-0230716698.730.001.27
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+004.791e-02 294.001e-034.787e-0311600737.340.000.16

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.