Observation information
- date-obs: 2025-07-11
- time-obs: 07:13:59.608600000
- date-end: 2025-07-11
- time-end: 09:13:04.592000000
- obs_id: C09_011T06_9000006484
- exposure: 277.614712894
- 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_9000006484_52932cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006484_52932cztM0_level2_quad_clean.evt
|
| Size (bytes) | 895,965,120 | 64,192,320 |
| Size | 854.5 MB
| 61.2 MB
|
| Events in quadrant A | 14,948,439 | 26,609 |
| Events in quadrant B | 3,179,190 | 629,766 |
| Events in quadrant C | 5,362,644 | 518,798 |
| Events in quadrant D | 9,208,796 | 347,461 |
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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 48489 | 1 |
| B | 0 | 13669 | 1 |
| C | 0 | 20088 | 1 |
| D | 0 | 31458 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6025 | 5815 | 96.514523% |
| B | 6026 | 124 | 2.057750% |
| C | 6026 | 549 | 9.110521% |
| D | 6026 | 2423 | 40.209094% |
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 | 7144 | 6024 | 5187 | 5187 | 72.61% | 86.11% |  |
| B | 7146 | 6027 | 22 | 22 | 0.31% | 0.37% |  |
| C | 7146 | 6027 | 468 | 468 | 6.55% | 7.77% |  |
| D | 7146 | 6027 | 1884 | 1884 | 26.36% | 31.26% |  |
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 | 9 | 191 | 13719822 | 211534.28 | 254 | 248 | 64.9 |
| A | 5 | 241 | 38366 | 587.72 | 254 | 248 | 64.9 |
| A | 15 | 174 | 29597 | 452.52 | 254 | 248 | 64.9 |
| B | 8 | 3 | 178507 | 1319.05 | 632 | 611 | 134.9 |
| B | 10 | 254 | 169502 | 1252.28 | 632 | 611 | 134.9 |
| B | 1 | 255 | 117008 | 863.05 | 632 | 611 | 134.9 |
| C | 7 | 80 | 1599144 | 9875.82 | 589 | 584 | 161.9 |
| C | 15 | 254 | 287668 | 1773.59 | 589 | 584 | 161.9 |
| C | 4 | 5 | 261546 | 1612.21 | 589 | 584 | 161.9 |
| D | 12 | 0 | 2707510 | 19150.5 | 497 | 476 | 141.4 |
| D | 8 | 176 | 2463129 | 17421.67 | 497 | 476 | 141.4 |
| D | 10 | 172 | 616348 | 4356.89 | 497 | 476 | 141.4 |
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 |  |