Observation information
- date-obs: 2025-05-26
- time-obs: 05:55:41.913600000
- date-end: 2025-05-26
- time-end: 07:53:44.897000000
- obs_id: C09_011T08_9000006472
- exposure: 4829.00431454
- 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_9000006472_52248cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006472_52248cztM0_level2_quad_clean.evt
|
| Size (bytes) | 722,759,040 | 80,248,320 |
| Size | 689.3 MB
| 76.5 MB
|
| Events in quadrant A | 3,243,631 | 565,107 |
| Events in quadrant B | 6,093,321 | 586,890 |
| Events in quadrant C | 7,692,149 | 440,829 |
| Events in quadrant D | 9,256,662 | 412,968 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13933 | 1 |
| B | 0 | 22371 | 1 |
| C | 0 | 27034 | 1 |
| D | 0 | 31712 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6063 | 139 | 2.292594% |
| B | 6064 | 486 | 8.014512% |
| C | 6064 | 1475 | 24.323879% |
| D | 6064 | 1509 | 24.884565% |
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 | 7083 | 6064 | 67 | 67 | 0.95% | 1.10% |  |
| B | 7084 | 6065 | 287 | 287 | 4.05% | 4.73% |  |
| C | 7084 | 6065 | 1331 | 1331 | 18.79% | 21.95% |  |
| D | 7084 | 6065 | 1742 | 1742 | 24.59% | 28.72% |  |
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 | 79 | 345734 | 2183.59 | 630 | 612 | 158.1 |
| A | 3 | 145 | 72615 | 455.56 | 630 | 612 | 158.1 |
| A | 5 | 240 | 56183 | 351.59 | 630 | 612 | 158.1 |
| B | 7 | 0 | 2198968 | 17019.06 | 612 | 593 | 129.2 |
| B | 10 | 254 | 421991 | 3262.32 | 612 | 593 | 129.2 |
| B | 12 | 32 | 184774 | 1425.87 | 612 | 593 | 129.2 |
| C | 15 | 224 | 3433167 | 22742.55 | 543 | 537 | 150.9 |
| C | 10 | 22 | 296421 | 1960.35 | 543 | 537 | 150.9 |
| C | 13 | 3 | 288047 | 1904.87 | 543 | 537 | 150.9 |
| D | 6 | 42 | 5787647 | 36221.08 | 558 | 533 | 159.8 |
| D | 8 | 176 | 463559 | 2898.04 | 558 | 533 | 159.8 |
| D | 7 | 96 | 332007 | 2074.67 | 558 | 533 | 159.8 |
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 |  |