Observation information
- date-obs: 2025-06-22
- time-obs: 17:13:24.238900000
- date-end: 2025-06-22
- time-end: 19:15:21.222500000
- obs_id: C09_011T07_9000006480
- exposure: 2462.88531017
- 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_011T07_9000006480_52656cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52656cztM0_level2_quad_clean.evt
|
| Size (bytes) | 962,772,480 | 67,196,160 |
| Size | 918.2 MB
| 64.1 MB
|
| Events in quadrant A | 3,390,884 | 603,798 |
| Events in quadrant B | 12,103,611 | 303,903 |
| Events in quadrant C | 12,034,158 | 231,350 |
| Events in quadrant D | 7,634,500 | 464,240 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14276 | 1 |
| B | 0 | 40253 | 2 |
| C | 0 | 40008 | 1 |
| D | 0 | 26987 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6162 | 141 | 2.288218% |
| B | 6162 | 3612 | 58.617332% |
| C | 6162 | 3912 | 63.485881% |
| D | 6162 | 1206 | 19.571568% |
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 | 7317 | 6163 | 95 | 95 | 1.30% | 1.54% |  |
| B | 7316 | 6161 | 3246 | 3246 | 44.37% | 52.69% |  |
| C | 7316 | 6161 | 3651 | 3651 | 49.90% | 59.26% |  |
| D | 7317 | 6163 | 1171 | 1171 | 16.00% | 19.00% |  |
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 | 8 | 43 | 258948 | 1596.99 | 648 | 633 | 161.8 |
| A | 3 | 14 | 220059 | 1356.56 | 648 | 633 | 161.8 |
| A | 5 | 246 | 75052 | 460.08 | 648 | 633 | 161.8 |
| B | 10 | 128 | 6780832 | 68689.97 | 469 | 455 | 98.7 |
| B | 12 | 32 | 2145884 | 21734.7 | 469 | 455 | 98.7 |
| B | 10 | 254 | 742089 | 7513.27 | 469 | 455 | 98.7 |
| C | 15 | 233 | 5741485 | 48630.86 | 421 | 416 | 118.1 |
| C | 15 | 158 | 3257629 | 27590.87 | 421 | 416 | 118.1 |
| C | 2 | 12 | 284533 | 2406.67 | 421 | 416 | 118.1 |
| D | 8 | 176 | 2572816 | 15421.38 | 578 | 553 | 166.8 |
| D | 12 | 3 | 874609 | 5240.19 | 578 | 553 | 166.8 |
| D | 1 | 7 | 541231 | 3241.5 | 578 | 553 | 166.8 |
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 |  |