Observation information
- date-obs: 2025-05-01
- time-obs: 15:52:18.789600000
- date-end: 2025-05-01
- time-end: 17:56:22.771400000
- obs_id: C09_011T05_9000006466
- exposure: 3833.75072795
- 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_51882cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51882cztM0_level2_quad_clean.evt
|
Size (bytes) | 709,205,760 | 87,209,280 |
Size | 676.4 MB
| 83.2 MB
|
Events in quadrant A | 5,848,441 | 605,370 |
Events in quadrant B | 5,132,255 | 649,974 |
Events in quadrant C | 3,874,902 | 598,595 |
Events in quadrant D | 10,883,538 | 324,642 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21988 | 1 |
B | 0 | 19710 | 1 |
C | 0 | 16069 | 1 |
D | 0 | 36953 | 9 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6629 | 268 | 4.042842% |
B | 6629 | 358 | 5.400513% |
C | 6629 | 94 | 1.418012% |
D | 6629 | 3083 | 46.507769% |
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 | 7444 | 6630 | 228 | 228 | 3.06% | 3.44% |  |
B | 7444 | 6630 | 203 | 203 | 2.73% | 3.06% |  |
C | 7444 | 6630 | 56 | 56 | 0.75% | 0.84% |  |
D | 7443 | 6628 | 2353 | 2353 | 31.61% | 35.50% |  |
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 | 1014445 | 5904.97 | 690 | 674 | 171.7 |
A | 4 | 175 | 561515 | 3266.76 | 690 | 674 | 171.7 |
A | 5 | 241 | 379839 | 2208.54 | 690 | 674 | 171.7 |
B | 4 | 170 | 1182737 | 8073.57 | 685 | 662 | 146.4 |
B | 1 | 223 | 264277 | 1800.49 | 685 | 662 | 146.4 |
B | 10 | 44 | 210512 | 1433.27 | 685 | 662 | 146.4 |
C | 15 | 192 | 388610 | 2071.17 | 685 | 678 | 187.3 |
C | 14 | 245 | 121280 | 643.9 | 685 | 678 | 187.3 |
C | 13 | 3 | 120424 | 639.33 | 685 | 678 | 187.3 |
D | 12 | 17 | 3371073 | 23590.18 | 510 | 492 | 142.9 |
D | 11 | 129 | 2697871 | 18878.54 | 510 | 492 | 142.9 |
D | 0 | 18 | 868870 | 6077.64 | 510 | 492 | 142.9 |
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 |  |