Observation information
- date-obs: 2025-06-17
- time-obs: 17:27:07.191600000
- date-end: 2025-06-17
- time-end: 19:31:07.174600000
- obs_id: C09_011T06_9000006478
- exposure: 4363.62080002
- 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_52582cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52582cztM0_level2_quad_clean.evt
|
| Size (bytes) | 759,919,680 | 80,703,360 |
| Size | 724.7 MB
| 77.0 MB
|
| Events in quadrant A | 4,433,515 | 591,561 |
| Events in quadrant B | 6,917,381 | 509,065 |
| Events in quadrant C | 6,418,964 | 499,825 |
| Events in quadrant D | 9,864,289 | 396,049 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17767 | 1 |
| B | 0 | 24811 | 1 |
| C | 0 | 23662 | 1 |
| D | 0 | 33813 | 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 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6400 | 505 | 7.890625% |
| B | 6401 | 1570 | 24.527418% |
| C | 6401 | 1118 | 17.466021% |
| D | 6401 | 2227 | 34.791439% |
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 | 7440 | 6400 | 408 | 408 | 5.48% | 6.38% |  |
| B | 7441 | 6401 | 1403 | 1403 | 18.85% | 21.92% |  |
| C | 7441 | 6402 | 1007 | 1007 | 13.53% | 15.73% |  |
| D | 7441 | 6401 | 2259 | 2259 | 30.36% | 35.29% |  |
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 | 4 | 249 | 1065642 | 6456.06 | 663 | 648 | 165.0 |
| A | 3 | 114 | 346221 | 2094.89 | 663 | 648 | 165.0 |
| A | 5 | 243 | 139370 | 840.94 | 663 | 648 | 165.0 |
| B | 10 | 44 | 3214252 | 25402.25 | 591 | 573 | 126.5 |
| B | 1 | 238 | 318444 | 2512.58 | 591 | 573 | 126.5 |
| B | 10 | 254 | 260777 | 2056.76 | 591 | 573 | 126.5 |
| C | 15 | 248 | 2555065 | 15017.96 | 613 | 608 | 170.1 |
| C | 13 | 3 | 909259 | 5342.07 | 613 | 608 | 170.1 |
| C | 15 | 224 | 264571 | 1551.87 | 613 | 608 | 170.1 |
| D | 6 | 42 | 5501372 | 33925.1 | 565 | 539 | 162.1 |
| D | 15 | 125 | 925932 | 5707.14 | 565 | 539 | 162.1 |
| D | 8 | 176 | 406994 | 2506.72 | 565 | 539 | 162.1 |
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 |  |