Observation information
- date-obs: 2025-06-13
- time-obs: 16:17:56.970700000
- date-end: 2025-06-13
- time-end: 18:24:07.951400000
- obs_id: C09_011T06_9000006478
- exposure: 5622.62821376
- 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_9000006478_52521cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52521cztM0_level2_quad_clean.evt
|
| Size (bytes) | 621,345,600 | 96,166,080 |
| Size | 592.6 MB
| 91.7 MB
|
| Events in quadrant A | 4,051,597 | 664,232 |
| Events in quadrant B | 3,664,059 | 692,940 |
| Events in quadrant C | 8,142,309 | 520,831 |
| Events in quadrant D | 6,615,281 | 559,515 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16969 | 2 |
| B | 0 | 15571 | 1 |
| C | 0 | 28939 | 1 |
| D | 0 | 24381 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6800 | 196 | 2.882353% |
| B | 6801 | 113 | 1.661520% |
| C | 6801 | 1369 | 20.129393% |
| D | 6801 | 752 | 11.057197% |
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 | 7570 | 6801 | 173 | 173 | 2.29% | 2.54% |  |
| B | 7571 | 6802 | 70 | 70 | 0.92% | 1.03% |  |
| C | 7571 | 6802 | 1309 | 1309 | 17.29% | 19.24% |  |
| D | 7571 | 6802 | 695 | 695 | 9.18% | 10.22% |  |
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 | 5 | 243 | 407246 | 2240.17 | 722 | 705 | 181.5 |
| A | 3 | 45 | 359112 | 1974.93 | 722 | 705 | 181.5 |
| A | 3 | 14 | 167899 | 921.29 | 722 | 705 | 181.5 |
| B | 1 | 255 | 156499 | 1029.7 | 713 | 689 | 151.3 |
| B | 4 | 21 | 106636 | 700.17 | 713 | 689 | 151.3 |
| B | 10 | 44 | 100709 | 661.0 | 713 | 689 | 151.3 |
| C | 15 | 233 | 2569802 | 14235.46 | 649 | 643 | 180.5 |
| C | 15 | 224 | 1056813 | 5852.14 | 649 | 643 | 180.5 |
| C | 13 | 3 | 630929 | 3492.35 | 649 | 643 | 180.5 |
| D | 8 | 176 | 808180 | 4091.84 | 683 | 652 | 197.4 |
| D | 6 | 42 | 781923 | 3958.8 | 683 | 652 | 197.4 |
| D | 12 | 17 | 422119 | 2135.62 | 683 | 652 | 197.4 |
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 |  |