Observation information
- date-obs: 2025-06-17
- time-obs: 13:27:04.223600000
- date-end: 2025-06-17
- time-end: 16:06:37.201900000
- obs_id: C09_011T06_9000006478
- exposure: 6438.05073649
- 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_011T06_9000006478_52579cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52579cztM0_level2_quad_clean.evt
|
| Size (bytes) | 766,627,200 | 112,870,080 |
| Size | 731.1 MB
| 107.6 MB
|
| Events in quadrant A | 4,470,357 | 775,144 |
| Events in quadrant B | 6,144,129 | 803,211 |
| Events in quadrant C | 6,185,351 | 709,472 |
| Events in quadrant D | 10,940,038 | 556,309 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19083 | 2 |
| B | 0 | 24027 | 2 |
| C | 0 | 23991 | 7 |
| D | 0 | 38204 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 168 | 0 |
| B | 0 | 168 | 0 |
| C | 0 | 168 | 0 |
| D | 0 | 168 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8248 | 223 | 2.703686% |
| B | 8248 | 403 | 4.886033% |
| C | 8247 | 597 | 7.238996% |
| D | 8248 | 2061 | 24.987876% |
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 | 9573 | 8249 | 114 | 114 | 1.19% | 1.38% |  |
| B | 9573 | 8249 | 172 | 172 | 1.80% | 2.09% |  |
| C | 9572 | 8248 | 460 | 460 | 4.81% | 5.58% |  |
| D | 9573 | 8248 | 1947 | 1947 | 20.34% | 23.61% |  |
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 | 4 | 249 | 268980 | 1220.78 | 887 | 866 | 219.6 |
| A | 12 | 3 | 246200 | 1117.05 | 887 | 866 | 219.6 |
| A | 3 | 114 | 121637 | 549.89 | 887 | 866 | 219.6 |
| B | 7 | 0 | 1152135 | 6348.04 | 865 | 836 | 181.4 |
| B | 4 | 171 | 331901 | 1825.43 | 865 | 836 | 181.4 |
| B | 10 | 44 | 246855 | 1356.5 | 865 | 836 | 181.4 |
| C | 13 | 3 | 1590457 | 6841.07 | 842 | 836 | 232.4 |
| C | 15 | 248 | 480626 | 2064.82 | 842 | 836 | 232.4 |
| C | 15 | 224 | 227861 | 977.02 | 842 | 836 | 232.4 |
| D | 6 | 42 | 3314546 | 15023.22 | 769 | 734 | 220.6 |
| D | 15 | 125 | 1774341 | 8040.68 | 769 | 734 | 220.6 |
| D | 11 | 245 | 827519 | 3748.24 | 769 | 734 | 220.6 |
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 |  |