Observation information
- date-obs: 2025-05-01
- time-obs: 22:37:05.730700000
- date-end: 2025-05-02
- time-end: 00:54:58.711300000
- obs_id: C09_011T05_9000006466
- exposure: 2430.49562013
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T05_9000006466_51887cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51887cztM0_level2_quad_clean.evt
|
Size (bytes) | 836,841,600 | 87,744,960 |
Size | 798.1 MB
| 83.7 MB
|
Events in quadrant A | 6,002,806 | 635,049 |
Events in quadrant B | 5,890,415 | 703,831 |
Events in quadrant C | 4,601,165 | 632,794 |
Events in quadrant D | 13,954,782 | 209,610 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22649 | 2 |
B | 0 | 22224 | 2 |
C | 0 | 18435 | 2 |
D | 0 | 46162 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6823 | 321 | 4.704675% |
B | 6823 | 326 | 4.777957% |
C | 6823 | 261 | 3.825297% |
D | 6823 | 4676 | 68.532903% |
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 | 7943 | 6824 | 202 | 202 | 2.54% | 2.96% |  |
B | 7943 | 6824 | 167 | 167 | 2.10% | 2.45% |  |
C | 7943 | 6824 | 141 | 141 | 1.78% | 2.07% |  |
D | 7943 | 6821 | 3781 | 3781 | 47.60% | 55.43% |  |
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 | 12 | 3 | 1483805 | 8447.74 | 703 | 685 | 175.6 |
A | 4 | 175 | 481435 | 2738.32 | 703 | 685 | 175.6 |
A | 11 | 3 | 294889 | 1675.76 | 703 | 685 | 175.6 |
B | 10 | 254 | 1566645 | 10465.8 | 710 | 687 | 149.6 |
B | 0 | 172 | 306994 | 2047.15 | 710 | 687 | 149.6 |
B | 4 | 170 | 282018 | 1880.23 | 710 | 687 | 149.6 |
C | 14 | 245 | 356757 | 1861.14 | 697 | 694 | 191.3 |
C | 13 | 3 | 228231 | 1189.34 | 697 | 694 | 191.3 |
C | 15 | 178 | 157395 | 819.08 | 697 | 694 | 191.3 |
D | 11 | 129 | 8096449 | 70659.3 | 400 | 384 | 114.6 |
D | 6 | 42 | 1332930 | 11629.94 | 400 | 384 | 114.6 |
D | 12 | 17 | 865792 | 7552.94 | 400 | 384 | 114.6 |
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 |  |