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ACA Trending: Oct 2025

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

ACIS
Slope: -1.424e-03 STD: 7.056e-02

Slope: 3.379e-05 STD: 7.208e-02

Slope: -8.568e-05 STD: 6.103e-02
 

Slope: 3.133e-04 STD: 4.983e-02

Slope: -1.242e-03 STD: 5.875e-02

Slope: -3.945e-04 STD: 7.970e-02
 
HRCI
Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan
HRCS
Slope: 2.414e-03 STD: 1.143e-02

Slope: 2.722e-03 STD: 1.343e-02

Slope: 2.870e-03 STD: 1.145e-02

Slope: 4.350e-03 STD: 1.924e-02
IDID StringMagnitudeData Quality (%)Total Data
AverageMinMaxGoodMarginalBad
1 ACIS-1 7.239 6.331 7.431 100 0 0 53
2 ACIS-2 7.099 6.575 7.337 100 0 0 49
3 ACIS-3 7.392 6.966 8.415 100 0 0 24
4 ACIS-4 7.205 6.386 7.338 100 0 0 50
5 ACIS-5 7.205 5.810 7.408 100 0 0 86
6 ACIS-6 7.252 7.006 7.490 100 0 0 56
7 HRC-I-1 6.794 6.784 6.807 100 0 0 1
8 HRC-I-2 6.823 6.810 6.835 100 0 0 1
9 HRC-I-3 0.000 0.000 0.000 0 0 0 0
10 HRC-I-4 6.779 6.767 6.788 100 0 0 1
11 HRC-S-1 6.796 6.747 6.833 100 0 0 4
12 HRC-S-2 6.796 6.530 6.838 100 0 0 6
13 HRC-S-3 6.841 6.798 6.865 100 0 0 4
14 HRC-S-4 6.795 6.720 6.854 100 0 0 4

Level 1 Slot Trending: Oct 2025

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

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: #POS_SLP0# STD: #POS_STD0#

Slope: #DIFF_SLP0# STD: #DIFF_STD0#

Slope: -6.722e-06 STD: -3.507e-05

Slope: -3.507e-05 STD: 8.645e-04
1
Slope: #POS_SLP1# STD: #POS_STD1#

Slope: #DIFF_SLP1# STD: #DIFF_STD1#

Slope: 1.810e-05 STD: 2.100e-05

Slope: 2.100e-05 STD: 1.168e-03
2
Slope: #POS_SLP2# STD: #POS_STD2#

Slope: #DIFF_SLP2# STD: #DIFF_STD2#

Slope: 1.722e-05 STD: -1.490e-06

Slope: -1.490e-06 STD: 9.817e-04
3
Slope: #POS_SLP3# STD: #POS_STD3#

Slope: #DIFF_SLP3# STD: #DIFF_STD3#

Slope: -8.212e-05 STD: -1.198e-05

Slope: -1.198e-05 STD: 7.044e-03
4
Slope: #POS_SLP4# STD: #POS_STD4#

Slope: #DIFF_SLP4# STD: #DIFF_STD4#

Slope: -2.666e-04 STD: -1.876e-04

Slope: -1.876e-04 STD: 9.641e-03
5
Slope: #POS_SLP5# STD: #POS_STD5#

Slope: #DIFF_SLP5# STD: #DIFF_STD5#

Slope: -3.268e-04 STD: -3.097e-04

Slope: -3.097e-04 STD: 1.072e-02
6
Slope: #POS_SLP6# STD: #POS_STD6#

Slope: #DIFF_SLP6# STD: #DIFF_STD6#

Slope: -4.544e-04 STD: -3.887e-04

Slope: -3.887e-04 STD: 1.462e-02
7
Slope: #POS_SLP7# STD: #POS_STD7#

Slope: #DIFF_SLP7# STD: #DIFF_STD7#

Slope: -5.448e-04 STD: -5.436e-04

Slope: -5.436e-04 STD: 1.650e-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
31.703e-051.499e-058.039e-03 1082.888e-023.519e-02438312100.000.000.00
41.781e-051.408e-056.865e-03 1083.492e-024.132e-02438337100.000.000.00
51.617e-051.524e-057.417e-03 1083.896e-024.563e-02438286100.000.000.00
61.511e-051.744e-057.688e-03 1074.451e-025.108e-02438324100.000.000.00
71.596e-051.559e-057.820e-03 1075.063e-025.715e-02438297100.000.000.00
AVG1.026e-059.668e-064.729e-03 672.474e-022.880e-0227394462.500.000.00

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+001.107e-01 1131.012e-021.162e-02438337100.000.000.00
10.000e+000.000e+001.083e-01 1131.093e-021.308e-02438334100.000.000.00
20.000e+000.000e+001.075e-01 1131.099e-021.343e-02438341100.000.000.00
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+004.081e-02 424.005e-034.766e-0316437637.500.000.00

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.