Observation information
- date-obs: 2025-06-23
- time-obs: 17:33:45.380400000
- date-end: 2025-06-23
- time-end: 19:33:57.019600000
- obs_id: C09_011T07_9000006480
- exposure: 5087.45425767
- 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_52671cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52671cztM0_level2_quad_clean.evt
|
| Size (bytes) | 614,390,400 | 85,158,720 |
| Size | 585.9 MB
| 81.2 MB
|
| Events in quadrant A | 4,497,238 | 591,025 |
| Events in quadrant B | 6,982,419 | 538,362 |
| Events in quadrant C | 3,987,476 | 552,625 |
| Events in quadrant D | 6,810,877 | 476,562 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17430 | 1 |
| B | 0 | 24882 | 1 |
| C | 0 | 16174 | 1 |
| D | 0 | 24409 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6007 | 103 | 1.714666% |
| B | 6008 | 1062 | 17.676431% |
| C | 6008 | 277 | 4.610519% |
| D | 6008 | 816 | 13.581891% |
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 | 7212 | 6007 | 48 | 48 | 0.67% | 0.80% |  |
| B | 7213 | 6009 | 901 | 901 | 12.49% | 14.99% |  |
| C | 7213 | 6008 | 213 | 213 | 2.95% | 3.55% |  |
| D | 7213 | 6008 | 878 | 878 | 12.17% | 14.61% |  |
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 | 3 | 14 | 1525003 | 9689.25 | 628 | 612 | 157.3 |
| A | 15 | 239 | 151693 | 960.29 | 628 | 612 | 157.3 |
| A | 12 | 80 | 63930 | 402.46 | 628 | 612 | 157.3 |
| B | 10 | 128 | 3642038 | 29663.03 | 591 | 571 | 122.8 |
| B | 2 | 249 | 368894 | 3000.32 | 591 | 571 | 122.8 |
| B | 1 | 255 | 102674 | 831.72 | 591 | 571 | 122.8 |
| C | 2 | 12 | 360172 | 2129.65 | 611 | 607 | 168.8 |
| C | 13 | 3 | 241814 | 1428.63 | 611 | 607 | 168.8 |
| C | 12 | 252 | 206138 | 1217.33 | 611 | 607 | 168.8 |
| D | 1 | 7 | 1497076 | 8732.58 | 589 | 561 | 171.4 |
| D | 6 | 42 | 1128886 | 6584.09 | 589 | 561 | 171.4 |
| D | 8 | 176 | 549489 | 3203.15 | 589 | 561 | 171.4 |
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 |  |