Observation information
- date-obs: 2025-05-19
- time-obs: 19:19:35.179900000
- date-end: 2025-05-19
- time-end: 21:27:55.163300000
- obs_id: C09_011T07_9000006470
- exposure: 3527.79138392
- 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_011T07_9000006470_52152cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52152cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,049,572,800 | 87,831,360 |
| Size | 1001.0 MB
| 83.8 MB
|
| Events in quadrant A | 6,124,317 | 678,566 |
| Events in quadrant B | 7,676,796 | 651,154 |
| Events in quadrant C | 9,501,068 | 511,350 |
| Events in quadrant D | 14,979,929 | 303,550 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23434 | 1 |
| B | 0 | 27929 | 2 |
| C | 0 | 33322 | 1 |
| D | 0 | 49641 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7391 | 324 | 4.383710% |
| B | 7390 | 1248 | 16.887686% |
| C | 7390 | 2116 | 28.633288% |
| D | 7390 | 4266 | 57.726658% |
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 | 7700 | 7392 | 239 | 239 | 3.10% | 3.23% |  |
| B | 7700 | 7392 | 880 | 880 | 11.43% | 11.90% |  |
| C | 7700 | 7391 | 1853 | 1853 | 24.06% | 25.07% |  |
| D | 7700 | 7390 | 4248 | 4248 | 55.17% | 57.48% |  |
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 | 3 | 1283949 | 6659.77 | 769 | 748 | 192.7 |
| A | 14 | 254 | 505673 | 2620.54 | 769 | 748 | 192.7 |
| A | 11 | 3 | 375575 | 1945.34 | 769 | 748 | 192.7 |
| B | 12 | 32 | 1898390 | 12380.53 | 728 | 703 | 153.3 |
| B | 10 | 254 | 1611232 | 10507.11 | 728 | 703 | 153.3 |
| B | 4 | 206 | 313305 | 2039.42 | 728 | 703 | 153.3 |
| C | 15 | 224 | 4745228 | 25564.91 | 666 | 659 | 185.6 |
| C | 7 | 1 | 524583 | 2823.03 | 666 | 659 | 185.6 |
| C | 15 | 193 | 293750 | 1579.25 | 666 | 659 | 185.6 |
| D | 6 | 42 | 8165396 | 50957.86 | 563 | 540 | 160.2 |
| D | 15 | 94 | 2353997 | 14688.21 | 563 | 540 | 160.2 |
| D | 12 | 17 | 969424 | 6046.92 | 563 | 540 | 160.2 |
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 |  |