Observation information
- date-obs: 2025-06-16
- time-obs: 15:27:19.394700000
- date-end: 2025-06-16
- time-end: 17:33:41.377200000
- obs_id: C09_011T06_9000006478
- exposure: 5086.21206498
- 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_52565cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52565cztM0_level2_quad_clean.evt
|
| Size (bytes) | 637,269,120 | 91,540,800 |
| Size | 607.7 MB
| 87.3 MB
|
| Events in quadrant A | 4,112,415 | 641,844 |
| Events in quadrant B | 5,576,153 | 628,633 |
| Events in quadrant C | 4,975,031 | 581,208 |
| Events in quadrant D | 8,406,949 | 452,425 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16967 | 1 |
| B | 0 | 21070 | 1 |
| C | 0 | 19603 | 1 |
| D | 0 | 29727 | 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 | 6697 | 203 | 3.031208% |
| B | 6698 | 649 | 9.689460% |
| C | 6698 | 454 | 6.778143% |
| D | 6698 | 1813 | 27.067781% |
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 | 7582 | 6698 | 170 | 170 | 2.24% | 2.54% |  |
| B | 7583 | 6699 | 525 | 525 | 6.92% | 7.84% |  |
| C | 7583 | 6699 | 368 | 368 | 4.85% | 5.49% |  |
| D | 7583 | 6699 | 1088 | 1088 | 14.35% | 16.24% |  |
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 | 542340 | 3065.9 | 706 | 688 | 176.7 |
| A | 4 | 249 | 340715 | 1924.65 | 706 | 688 | 176.7 |
| A | 7 | 112 | 223924 | 1263.58 | 706 | 688 | 176.7 |
| B | 10 | 44 | 1522821 | 10630.48 | 671 | 646 | 143.2 |
| B | 7 | 0 | 268921 | 1873.56 | 671 | 646 | 143.2 |
| B | 13 | 245 | 236237 | 1645.31 | 671 | 646 | 143.2 |
| C | 13 | 3 | 891969 | 4765.66 | 675 | 669 | 187.0 |
| C | 15 | 248 | 837659 | 4475.27 | 675 | 669 | 187.0 |
| C | 15 | 224 | 229985 | 1226.12 | 675 | 669 | 187.0 |
| D | 8 | 176 | 2129502 | 12527.37 | 579 | 551 | 169.9 |
| D | 7 | 38 | 1309396 | 7701.62 | 579 | 551 | 169.9 |
| D | 15 | 125 | 466037 | 2739.05 | 579 | 551 | 169.9 |
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 |  |