Observation information
- date-obs: 2025-05-28
- time-obs: 13:23:23.463900000
- date-end: 2025-05-28
- time-end: 15:28:51.447500000
- obs_id: C09_011T05_9000006474
- exposure: 642.162796021
- 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_52282cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52282cztM0_level2_quad_clean.evt
|
| Size (bytes) | 832,248,000 | 79,004,160 |
| Size | 793.7 MB
| 75.3 MB
|
| Events in quadrant A | 4,393,785 | 629,098 |
| Events in quadrant B | 5,626,747 | 671,280 |
| Events in quadrant C | 14,090,590 | 59,632 |
| Events in quadrant D | 6,156,556 | 547,928 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17875 | 1 |
| B | 0 | 21606 | 1 |
| C | 0 | 46577 | 1 |
| D | 0 | 23030 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6943 | 367 | 5.285899% |
| B | 6944 | 383 | 5.515553% |
| C | 6943 | 6382 | 91.919919% |
| D | 6943 | 546 | 7.864036% |
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 | 7528 | 6943 | 193 | 193 | 2.56% | 2.78% |  |
| B | 7529 | 6945 | 175 | 175 | 2.32% | 2.52% |  |
| C | 7527 | 6942 | 4175 | 4175 | 55.47% | 60.14% |  |
| D | 7528 | 6944 | 417 | 417 | 5.54% | 6.01% |  |
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 | 206 | 422113 | 2388.72 | 715 | 697 | 176.4 |
| A | 4 | 249 | 257041 | 1453.04 | 715 | 697 | 176.4 |
| A | 13 | 248 | 140456 | 792.2 | 715 | 697 | 176.4 |
| B | 7 | 0 | 826244 | 5599.87 | 703 | 681 | 147.4 |
| B | 4 | 81 | 356890 | 2416.2 | 703 | 681 | 147.4 |
| B | 5 | 32 | 304322 | 2059.62 | 703 | 681 | 147.4 |
| C | 15 | 158 | 4478337 | 68701.25 | 234 | 232 | 65.2 |
| C | 15 | 178 | 3767672 | 57798.52 | 234 | 232 | 65.2 |
| C | 0 | 161 | 1747981 | 26813.25 | 234 | 232 | 65.2 |
| D | 15 | 93 | 1366741 | 7054.5 | 685 | 655 | 193.6 |
| D | 12 | 18 | 565897 | 2918.92 | 685 | 655 | 193.6 |
| D | 8 | 176 | 450382 | 2322.4 | 685 | 655 | 193.6 |
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 |  |