Observation information
- date-obs: 2025-05-27
- time-obs: 16:39:08.630700000
- date-end: 2025-05-27
- time-end: 18:36:59.615700000
- obs_id: C09_011T05_9000006474
- exposure: 1080.9165802
- 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_52269cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52269cztM0_level2_quad_clean.evt
|
| Size (bytes) | 833,402,880 | 81,011,520 |
| Size | 794.8 MB
| 77.3 MB
|
| Events in quadrant A | 4,579,471 | 636,985 |
| Events in quadrant B | 6,781,882 | 645,460 |
| Events in quadrant C | 14,732,746 | 95,124 |
| Events in quadrant D | 4,206,376 | 582,808 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18459 | 0 |
| B | 0 | 25028 | 0 |
| C | 0 | 48575 | 0 |
| D | 0 | 17483 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7071 | 336 | 4.751803% |
| B | 7071 | 866 | 12.247207% |
| C | 7071 | 6167 | 87.215387% |
| D | 7071 | 162 | 2.291048% |
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 | 7071 | 7071 | 277 | 277 | 3.92% | 3.92% |  |
| B | 7071 | 7071 | 506 | 506 | 7.16% | 7.16% |  |
| C | 7071 | 7071 | 4596 | 4596 | 65.00% | 65.00% |  |
| D | 7071 | 7071 | 99 | 99 | 1.40% | 1.40% |  |
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 | 1113715 | 6100.36 | 728 | 711 | 182.4 |
| A | 3 | 130 | 95129 | 517.5 | 728 | 711 | 182.4 |
| A | 3 | 7 | 90707 | 493.27 | 728 | 711 | 182.4 |
| B | 12 | 32 | 1049157 | 7012.04 | 701 | 675 | 149.5 |
| B | 4 | 171 | 635945 | 4248.56 | 701 | 675 | 149.5 |
| B | 5 | 32 | 586083 | 3915.09 | 701 | 675 | 149.5 |
| C | 15 | 158 | 8611087 | 108163.38 | 281 | 277 | 79.6 |
| C | 15 | 178 | 2043805 | 25669.47 | 281 | 277 | 79.6 |
| C | 15 | 224 | 1797286 | 22572.86 | 281 | 277 | 79.6 |
| D | 8 | 176 | 273284 | 1342.55 | 713 | 683 | 203.0 |
| D | 11 | 176 | 187316 | 919.16 | 713 | 683 | 203.0 |
| D | 7 | 60 | 161258 | 790.83 | 713 | 683 | 203.0 |
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 |  |