Observation information
- date-obs: 2023-12-08
- time-obs: 01:04:05.380500000
- date-end: 2023-12-08
- time-end: 04:54:42.371300000
- obs_id: A13_004T13_9000005988
- exposure: 12016.5042837
- sourceid: M31 Field 25
- observer: dleahy
- ra_pnt: 11.54583
- dec_pnt: 42.53889
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_004T13_9000005988_44308cztM0_level2.fits
| modeM0/AS1A13_004T13_9000005988_44308cztM0_level2_quad_clean.evt
|
Size (bytes) | 860,869,440 | 200,056,320 |
Size | 821.0 MB
| 190.8 MB
|
Events in quadrant A | 8,396,423 | 1,328,406 |
Events in quadrant B | 6,641,802 | 1,364,866 |
Events in quadrant C | 5,899,960 | 1,323,622 |
Events in quadrant D | 9,937,229 | 1,154,824 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 35232 | 3 |
B | 0 | 28442 | 3 |
C | 0 | 26765 | 13 |
D | 0 | 38473 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 262 | 0 |
B | 0 | 262 | 0 |
C | 0 | 262 | 0 |
D | 0 | 262 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 12801 | 151 | 1.179595% |
B | 12800 | 221 | 1.726562% |
C | 12799 | 70 | 0.546918% |
D | 12802 | 846 | 6.608342% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 13836 | 12803 | 4 | 4 | 0.03% | 0.03% |  |
B | 13836 | 12802 | 71 | 71 | 0.51% | 0.55% |  |
C | 13837 | 12802 | 23 | 23 | 0.17% | 0.18% |  |
D | 13837 | 12804 | 669 | 669 | 4.83% | 5.22% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 10 | 83 | 2793309 | 9456.78 | 1418 | 1386 | 295.2 |
A | 7 | 3 | 52162 | 171.99 | 1418 | 1386 | 295.2 |
A | 15 | 223 | 34271 | 111.39 | 1418 | 1386 | 295.2 |
B | 5 | 255 | 312669 | 1121.51 | 1409 | 1363 | 277.6 |
B | 0 | 190 | 250616 | 897.96 | 1409 | 1363 | 277.6 |
B | 0 | 219 | 134055 | 478.04 | 1409 | 1363 | 277.6 |
C | 14 | 254 | 295363 | 898.21 | 1395 | 1397 | 327.3 |
C | 3 | 233 | 89866 | 270.32 | 1395 | 1397 | 327.3 |
C | 9 | 54 | 52481 | 156.09 | 1395 | 1397 | 327.3 |
D | 13 | 171 | 969543 | 2840.54 | 1359 | 1319 | 340.9 |
D | 13 | 249 | 813022 | 2381.34 | 1359 | 1319 | 340.9 |
D | 1 | 20 | 786873 | 2304.63 | 1359 | 1319 | 340.9 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |