Observation information
- date-obs: 2025-05-08
- time-obs: 16:10:02.396100000
- date-end: 2025-05-08
- time-end: 18:13:56.378900000
- obs_id: C09_011T06_9000006468
- exposure: 2083.92481834
- 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_9000006468_51987cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51987cztM0_level2_quad_clean.evt
|
| Size (bytes) | 867,159,360 | 76,942,080 |
| Size | 827.0 MB
| 73.4 MB
|
| Events in quadrant A | 6,132,877 | 537,947 |
| Events in quadrant B | 5,401,930 | 633,120 |
| Events in quadrant C | 6,086,777 | 528,821 |
| Events in quadrant D | 13,989,129 | 187,944 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22594 | 1 |
| B | 0 | 20474 | 1 |
| C | 0 | 22621 | 3 |
| D | 0 | 45847 | 1 |
| 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 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6319 | 969 | 15.334705% |
| B | 6320 | 495 | 7.832278% |
| C | 6319 | 929 | 14.701693% |
| D | 6319 | 4570 | 72.321570% |
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 | 7434 | 6320 | 723 | 723 | 9.73% | 11.44% |  |
| B | 7434 | 6320 | 324 | 324 | 4.36% | 5.13% |  |
| C | 7434 | 6320 | 753 | 753 | 10.13% | 11.91% |  |
| D | 7434 | 6319 | 4258 | 4258 | 57.28% | 67.38% |  |
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 | 7 | 64 | 2510717 | 15817.5 | 630 | 614 | 158.7 |
| A | 2 | 48 | 288558 | 1814.49 | 630 | 614 | 158.7 |
| A | 4 | 3 | 173962 | 1092.36 | 630 | 614 | 158.7 |
| B | 10 | 128 | 613981 | 4442.42 | 656 | 635 | 138.1 |
| B | 4 | 206 | 473413 | 3424.29 | 656 | 635 | 138.1 |
| B | 4 | 171 | 401850 | 2905.97 | 656 | 635 | 138.1 |
| C | 15 | 224 | 2147294 | 12553.79 | 623 | 620 | 171.0 |
| C | 15 | 147 | 360482 | 2104.48 | 623 | 620 | 171.0 |
| C | 9 | 38 | 280781 | 1638.39 | 623 | 620 | 171.0 |
| D | 2 | 172 | 4301512 | 31918.85 | 464 | 443 | 134.8 |
| D | 6 | 42 | 3503997 | 26000.38 | 464 | 443 | 134.8 |
| D | 12 | 17 | 2280323 | 16919.32 | 464 | 443 | 134.8 |
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 |  |