Observation information
- date-obs: 2024-01-15
- time-obs: 09:05:42.760000000
- date-end: 2024-01-15
- time-end: 11:12:08.757500000
- obs_id: A13_042T03_9000006030
- exposure: 6347.95014578
- sourceid: NGC4826
- observer: rosolowsky
- ra_pnt: 194.1818
- dec_pnt: 21.68297
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_042T03_9000006030_44875cztM0_level2.fits
| modeM0/AS1A13_042T03_9000006030_44875cztM0_level2_quad_clean.evt
|
Size (bytes) | 444,715,200 | 107,271,360 |
Size | 424.1 MB
| 102.3 MB
|
Events in quadrant A | 5,205,077 | 712,408 |
Events in quadrant B | 3,669,050 | 724,015 |
Events in quadrant C | 3,051,050 | 707,156 |
Events in quadrant D | 4,019,573 | 640,087 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20893 | 2 |
B | 0 | 15314 | 2 |
C | 0 | 13777 | 2 |
D | 0 | 16468 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6656 | 155 | 2.328726% |
B | 6656 | 220 | 3.305288% |
C | 6656 | 49 | 0.736178% |
D | 6657 | 180 | 2.703921% |
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 | 7586 | 6657 | 19 | 19 | 0.25% | 0.29% |  |
B | 7586 | 6657 | 114 | 114 | 1.50% | 1.71% |  |
C | 7586 | 6657 | 6 | 6 | 0.08% | 0.09% |  |
D | 7587 | 6658 | 94 | 94 | 1.24% | 1.41% |  |
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 | 2154476 | 13625.83 | 757 | 739 | 158.1 |
A | 7 | 3 | 53338 | 332.77 | 757 | 739 | 158.1 |
A | 13 | 248 | 51564 | 321.55 | 757 | 739 | 158.1 |
B | 3 | 112 | 239439 | 1597.41 | 745 | 720 | 149.4 |
B | 5 | 255 | 157614 | 1049.87 | 745 | 720 | 149.4 |
B | 0 | 190 | 106846 | 710.15 | 745 | 720 | 149.4 |
C | 2 | 14 | 46389 | 258.75 | 744 | 747 | 176.4 |
C | 1 | 3 | 38430 | 213.63 | 744 | 747 | 176.4 |
C | 12 | 250 | 28287 | 156.13 | 744 | 747 | 176.4 |
D | 2 | 249 | 308818 | 1639.19 | 742 | 720 | 188.0 |
D | 1 | 52 | 282055 | 1496.8 | 742 | 720 | 188.0 |
D | 13 | 249 | 253180 | 1343.17 | 742 | 720 | 188.0 |
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 |  |