Observation information
- date-obs: 2025-06-01
- time-obs: 00:41:52.806300000
- date-end: 2025-06-01
- time-end: 02:45:25.782500000
- obs_id: C09_011T05_9000006474
- exposure: 4303.60713828
- 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_9000006474_52333cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52333cztM0_level2_quad_clean.evt
|
| Size (bytes) | 704,013,120 | 83,076,480 |
| Size | 671.4 MB
| 79.2 MB
|
| Events in quadrant A | 3,196,557 | 600,436 |
| Events in quadrant B | 4,447,348 | 631,399 |
| Events in quadrant C | 9,880,240 | 385,721 |
| Events in quadrant D | 8,034,405 | 445,106 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14309 | 5 |
| B | 0 | 17673 | 12 |
| C | 0 | 33843 | 17 |
| D | 0 | 28374 | 13 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| 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 | 6481 | 54 | 0.833205% |
| B | 6480 | 204 | 3.148148% |
| C | 6480 | 2400 | 37.037037% |
| D | 6479 | 1382 | 21.330452% |
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 | 7413 | 6485 | 32 | 32 | 0.43% | 0.49% |  |
| B | 7413 | 6485 | 112 | 112 | 1.51% | 1.73% |  |
| C | 7412 | 6483 | 1982 | 1982 | 26.74% | 30.57% |  |
| D | 7413 | 6485 | 1189 | 1189 | 16.04% | 18.33% |  |
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 | 5 | 240 | 110510 | 665.3 | 663 | 647 | 165.1 |
| A | 11 | 3 | 93566 | 562.69 | 663 | 647 | 165.1 |
| A | 8 | 249 | 64586 | 387.2 | 663 | 647 | 165.1 |
| B | 10 | 254 | 608089 | 4306.88 | 654 | 631 | 141.0 |
| B | 12 | 32 | 471025 | 3335.09 | 654 | 631 | 141.0 |
| B | 0 | 216 | 224777 | 1589.2 | 654 | 631 | 141.0 |
| C | 15 | 224 | 2453139 | 17105.97 | 521 | 517 | 143.4 |
| C | 15 | 178 | 1721967 | 12006.36 | 521 | 517 | 143.4 |
| C | 15 | 248 | 1346624 | 9388.51 | 521 | 517 | 143.4 |
| D | 15 | 78 | 1514324 | 9274.04 | 576 | 551 | 163.2 |
| D | 15 | 93 | 935307 | 5726.73 | 576 | 551 | 163.2 |
| D | 2 | 62 | 906867 | 5552.49 | 576 | 551 | 163.2 |
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 |  |