Observation information
- date-obs: 2025-07-08
- time-obs: 06:25:10.192000000
- date-end: 2025-07-08
- time-end: 08:20:41.176100000
- obs_id: C09_011T08_9000006482
- exposure: 4540.11515695
- 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_011T08_9000006482_52887cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006482_52887cztM0_level2_quad_clean.evt
|
| Size (bytes) | 625,763,520 | 81,676,800 |
| Size | 596.8 MB
| 77.9 MB
|
| Events in quadrant A | 9,019,762 | 444,077 |
| Events in quadrant B | 4,004,409 | 604,312 |
| Events in quadrant C | 4,642,458 | 519,316 |
| Events in quadrant D | 5,040,579 | 493,138 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30906 | 1 |
| B | 0 | 15982 | 1 |
| C | 0 | 17908 | 1 |
| D | 0 | 19062 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5896 | 1665 | 28.239484% |
| B | 5897 | 161 | 2.730202% |
| C | 5897 | 424 | 7.190097% |
| D | 5897 | 566 | 9.598101% |
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 | 6931 | 5896 | 1570 | 1570 | 22.65% | 26.63% |  |
| B | 6932 | 5897 | 82 | 82 | 1.18% | 1.39% |  |
| C | 6932 | 5898 | 411 | 411 | 5.93% | 6.97% |  |
| D | 6932 | 5898 | 562 | 562 | 8.11% | 9.53% |  |
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 | 9 | 191 | 5129817 | 35036.35 | 580 | 566 | 146.4 |
| A | 12 | 17 | 359242 | 2450.01 | 580 | 566 | 146.4 |
| A | 15 | 174 | 314219 | 2142.47 | 580 | 566 | 146.4 |
| B | 8 | 3 | 741453 | 5704.03 | 612 | 594 | 129.9 |
| B | 1 | 255 | 302569 | 2324.97 | 612 | 594 | 129.9 |
| B | 7 | 0 | 179727 | 1379.18 | 612 | 594 | 129.9 |
| C | 7 | 80 | 1548995 | 9644.17 | 583 | 578 | 160.6 |
| C | 2 | 12 | 151204 | 938.16 | 583 | 578 | 160.6 |
| C | 14 | 254 | 144165 | 894.32 | 583 | 578 | 160.6 |
| D | 8 | 176 | 838228 | 4929.12 | 592 | 565 | 169.9 |
| D | 11 | 176 | 641167 | 3769.54 | 592 | 565 | 169.9 |
| D | 3 | 224 | 442480 | 2600.39 | 592 | 565 | 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 |  |