Observation information
- date-obs: 2025-05-30
- time-obs: 03:37:58.159300000
- date-end: 2025-05-30
- time-end: 05:35:58.141600000
- obs_id: C09_011T05_9000006474
- exposure: 3382.47429389
- 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_52306cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52306cztM0_level2_quad_clean.evt
|
| Size (bytes) | 779,852,160 | 72,993,600 |
| Size | 743.7 MB
| 69.6 MB
|
| Events in quadrant A | 2,955,933 | 571,245 |
| Events in quadrant B | 5,201,179 | 581,803 |
| Events in quadrant C | 10,810,294 | 307,337 |
| Events in quadrant D | 9,432,761 | 327,227 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13187 | 1 |
| B | 0 | 19719 | 1 |
| C | 0 | 36340 | 1 |
| D | 0 | 32233 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6040 | 37 | 0.612583% |
| B | 6041 | 421 | 6.969045% |
| C | 6041 | 2976 | 49.263367% |
| D | 6041 | 2338 | 38.702202% |
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 | 7080 | 6040 | 18 | 18 | 0.25% | 0.30% |  |
| B | 7081 | 6041 | 267 | 267 | 3.77% | 4.42% |  |
| C | 7080 | 6040 | 2813 | 2813 | 39.73% | 46.57% |  |
| D | 7080 | 6041 | 2245 | 2245 | 31.71% | 37.16% |  |
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 | 138805 | 885.72 | 622 | 605 | 156.0 |
| A | 5 | 240 | 75943 | 482.84 | 622 | 605 | 156.0 |
| A | 3 | 14 | 75064 | 477.21 | 622 | 605 | 156.0 |
| B | 7 | 0 | 1069208 | 8323.57 | 603 | 582 | 128.4 |
| B | 4 | 171 | 771641 | 6005.81 | 603 | 582 | 128.4 |
| B | 0 | 216 | 589025 | 4583.41 | 603 | 582 | 128.4 |
| C | 15 | 224 | 2471470 | 19569.44 | 453 | 450 | 126.3 |
| C | 9 | 38 | 1628874 | 12896.44 | 453 | 450 | 126.3 |
| C | 0 | 161 | 1545336 | 12234.85 | 453 | 450 | 126.3 |
| D | 6 | 42 | 3379295 | 25025.71 | 464 | 443 | 135.0 |
| D | 12 | 2 | 2801177 | 20743.84 | 464 | 443 | 135.0 |
| D | 7 | 96 | 552879 | 4091.66 | 464 | 443 | 135.0 |
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 |  |