Observation information
- date-obs: 2025-06-22
- time-obs: 00:00:01.379300000
- date-end: 2025-06-22
- time-end: 01:59:19.363000000
- obs_id: C09_011T07_9000006480
- exposure: 1124.86398393
- 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_9000006480_52645cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52645cztM0_level2_quad_clean.evt
|
| Size (bytes) | 786,407,040 | 72,979,200 |
| Size | 750.0 MB
| 69.6 MB
|
| Events in quadrant A | 4,640,121 | 538,752 |
| Events in quadrant B | 3,880,454 | 621,726 |
| Events in quadrant C | 14,327,865 | 101,120 |
| Events in quadrant D | 5,764,595 | 500,733 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18331 | 1 |
| B | 0 | 16040 | 1 |
| C | 0 | 46927 | 1 |
| D | 0 | 21603 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6404 | 580 | 9.056839% |
| B | 6404 | 156 | 2.435978% |
| C | 6404 | 5454 | 85.165522% |
| D | 6404 | 538 | 8.400999% |
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 | 7159 | 6404 | 493 | 493 | 6.89% | 7.70% |  |
| B | 7159 | 6405 | 83 | 83 | 1.16% | 1.30% |  |
| C | 7158 | 6404 | 4915 | 4915 | 68.66% | 76.75% |  |
| D | 7159 | 6405 | 488 | 488 | 6.82% | 7.62% |  |
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 | 8 | 9 | 1081034 | 7145.82 | 602 | 586 | 151.2 |
| A | 3 | 14 | 351386 | 2320.11 | 602 | 586 | 151.2 |
| A | 4 | 249 | 220174 | 1452.3 | 602 | 586 | 151.2 |
| B | 10 | 128 | 661969 | 4921.04 | 629 | 607 | 134.4 |
| B | 5 | 185 | 222507 | 1651.11 | 629 | 607 | 134.4 |
| B | 10 | 247 | 131362 | 972.92 | 629 | 607 | 134.4 |
| C | 15 | 178 | 10139036 | 128778.87 | 279 | 276 | 78.7 |
| C | 15 | 248 | 2432113 | 30888.32 | 279 | 276 | 78.7 |
| C | 13 | 3 | 212957 | 2701.4 | 279 | 276 | 78.7 |
| D | 8 | 176 | 800063 | 4642.85 | 593 | 567 | 172.2 |
| D | 2 | 153 | 513619 | 2979.41 | 593 | 567 | 172.2 |
| D | 6 | 42 | 450108 | 2610.58 | 593 | 567 | 172.2 |
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 |  |