Observation information
- date-obs: 2025-05-02
- time-obs: 00:22:05.715600000
- date-end: 2025-05-02
- time-end: 02:37:44.696600000
- obs_id: C09_011T05_9000006466
- exposure: 3052.68784243
- 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_51888cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51888cztM0_level2_quad_clean.evt
|
Size (bytes) | 883,900,800 | 84,205,440 |
Size | 843.0 MB
| 80.3 MB
|
Events in quadrant A | 7,570,088 | 585,382 |
Events in quadrant B | 6,548,811 | 597,799 |
Events in quadrant C | 4,599,276 | 630,336 |
Events in quadrant D | 13,475,344 | 261,625 |
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 | 27291 | 2 |
B | 0 | 24241 | 2 |
C | 0 | 18421 | 2 |
D | 0 | 44716 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6804 | 749 | 11.008230% |
B | 6804 | 1173 | 17.239859% |
C | 6804 | 92 | 1.352146% |
D | 6804 | 4146 | 60.934744% |
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 | 7884 | 6805 | 606 | 606 | 7.69% | 8.91% |  |
B | 7884 | 6805 | 731 | 731 | 9.27% | 10.74% |  |
C | 7884 | 6805 | 51 | 51 | 0.65% | 0.75% |  |
D | 7884 | 6803 | 3398 | 3398 | 43.10% | 49.95% |  |
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 | 1624641 | 9612.45 | 675 | 658 | 168.9 |
A | 4 | 175 | 842283 | 4981.63 | 675 | 658 | 168.9 |
A | 15 | 174 | 795243 | 4703.19 | 675 | 658 | 168.9 |
B | 4 | 170 | 1691825 | 11982.07 | 666 | 643 | 141.1 |
B | 4 | 171 | 655106 | 4636.89 | 666 | 643 | 141.1 |
B | 10 | 254 | 536593 | 3797.22 | 666 | 643 | 141.1 |
C | 15 | 192 | 578362 | 2997.65 | 690 | 683 | 192.7 |
C | 15 | 248 | 344278 | 1782.96 | 690 | 683 | 192.7 |
C | 3 | 233 | 195082 | 1008.76 | 690 | 683 | 192.7 |
D | 11 | 129 | 6741607 | 53563.62 | 447 | 430 | 125.9 |
D | 6 | 42 | 2698703 | 21439.77 | 447 | 430 | 125.9 |
D | 12 | 17 | 870658 | 6914.6 | 447 | 430 | 125.9 |
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 |  |