Observation information
- date-obs: 2025-06-19
- time-obs: 02:23:02.936200000
- date-end: 2025-06-19
- time-end: 04:32:11.919600000
- obs_id: C09_011T06_9000006478
- exposure: 5110.00639009
- 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_52602cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52602cztM0_level2_quad_clean.evt
|
| Size (bytes) | 876,453,120 | 90,944,640 |
| Size | 835.9 MB
| 86.7 MB
|
| Events in quadrant A | 3,787,496 | 677,591 |
| Events in quadrant B | 6,654,301 | 654,604 |
| Events in quadrant C | 10,366,662 | 464,963 |
| Events in quadrant D | 11,068,359 | 446,034 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16881 | 2 |
| B | 0 | 25045 | 1 |
| C | 0 | 35945 | 1 |
| D | 0 | 38007 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7328 | 169 | 2.306223% |
| B | 7329 | 892 | 12.170828% |
| C | 7329 | 2381 | 32.487379% |
| D | 7329 | 2396 | 32.692045% |
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 | 7748 | 7330 | 109 | 109 | 1.41% | 1.49% |  |
| B | 7749 | 7331 | 577 | 577 | 7.45% | 7.87% |  |
| C | 7749 | 7331 | 2334 | 2334 | 30.12% | 31.84% |  |
| D | 7749 | 7331 | 2405 | 2405 | 31.04% | 32.81% |  |
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 | 0 | 250 | 217291 | 1150.59 | 751 | 731 | 188.2 |
| A | 3 | 28 | 181273 | 959.22 | 751 | 731 | 188.2 |
| A | 4 | 249 | 143538 | 758.73 | 751 | 731 | 188.2 |
| B | 10 | 128 | 2382106 | 15762.12 | 716 | 691 | 151.1 |
| B | 10 | 254 | 569636 | 3765.74 | 716 | 691 | 151.1 |
| B | 4 | 81 | 437855 | 2893.5 | 716 | 691 | 151.1 |
| C | 15 | 248 | 6386187 | 36889.89 | 618 | 612 | 173.1 |
| C | 4 | 5 | 588106 | 3393.99 | 618 | 612 | 173.1 |
| C | 1 | 44 | 392341 | 2263.04 | 618 | 612 | 173.1 |
| D | 8 | 176 | 2684644 | 14604.59 | 628 | 596 | 183.8 |
| D | 12 | 16 | 2600946 | 14149.17 | 628 | 596 | 183.8 |
| D | 2 | 62 | 1357971 | 7385.82 | 628 | 596 | 183.8 |
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 |  |