Observation information
- date-obs: 2025-05-18
- time-obs: 12:16:44.431800000
- date-end: 2025-05-18
- time-end: 14:17:17.414200000
- obs_id: C09_011T07_9000006470
- exposure: 810.4514485
- 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_9000006470_52133cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52133cztM0_level2_quad_clean.evt
|
| Size (bytes) | 846,616,320 | 70,329,600 |
| Size | 807.4 MB
| 67.1 MB
|
| Events in quadrant A | 3,977,952 | 577,976 |
| Events in quadrant B | 4,183,972 | 613,038 |
| Events in quadrant C | 7,763,933 | 443,291 |
| Events in quadrant D | 14,944,424 | 71,869 |
Level1 data integrity
| 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 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15872 | 1 |
| B | 0 | 16675 | 1 |
| C | 0 | 27292 | 1 |
| D | 0 | 48544 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6053 | 292 | 4.824054% |
| B | 6054 | 325 | 5.368352% |
| C | 6054 | 1576 | 26.032375% |
| D | 6054 | 5375 | 88.784275% |
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 | 7233 | 6054 | 195 | 195 | 2.70% | 3.22% |  |
| B | 7234 | 6055 | 175 | 175 | 2.42% | 2.89% |  |
| C | 7234 | 6054 | 1343 | 1343 | 18.57% | 22.18% |  |
| D | 7233 | 6053 | 5232 | 5232 | 72.34% | 86.44% |  |
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 | 6 | 162 | 523696 | 3276.24 | 639 | 623 | 159.7 |
| A | 4 | 95 | 194350 | 1213.4 | 639 | 623 | 159.7 |
| A | 14 | 254 | 179122 | 1118.02 | 639 | 623 | 159.7 |
| B | 5 | 172 | 404015 | 3016.48 | 628 | 607 | 133.7 |
| B | 4 | 81 | 319781 | 2386.62 | 628 | 607 | 133.7 |
| B | 0 | 216 | 207096 | 1544.02 | 628 | 607 | 133.7 |
| C | 15 | 224 | 3552322 | 22966.86 | 555 | 552 | 154.6 |
| C | 15 | 193 | 607394 | 3924.03 | 555 | 552 | 154.6 |
| C | 15 | 199 | 564582 | 3647.19 | 555 | 552 | 154.6 |
| D | 15 | 94 | 6449490 | 78119.01 | 283 | 271 | 82.6 |
| D | 6 | 42 | 4642638 | 56232.72 | 283 | 271 | 82.6 |
| D | 12 | 3 | 983398 | 11908.56 | 283 | 271 | 82.6 |
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 |  |