Observation information
- date-obs: 2025-07-16
- time-obs: 03:36:10.537900000
- date-end: 2025-07-16
- time-end: 05:29:39.518600000
- obs_id: C09_011T07_9000006488
- exposure: 970.292333543
- 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_9000006488_53004cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006488_53004cztM0_level2_quad_clean.evt
|
| Size (bytes) | 978,382,080 | 58,648,320 |
| Size | 933.1 MB
| 55.9 MB
|
| Events in quadrant A | 13,385,998 | 93,239 |
| Events in quadrant B | 5,249,188 | 573,716 |
| Events in quadrant C | 6,555,600 | 440,095 |
| Events in quadrant D | 10,588,954 | 272,146 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 114 | 0 |
| B | 0 | 114 | 0 |
| C | 0 | 114 | 0 |
| D | 0 | 114 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 43599 | 5 |
| B | 0 | 19517 | 1 |
| C | 0 | 23348 | 1 |
| D | 0 | 35408 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5668 | 4958 | 87.473536% |
| B | 5669 | 306 | 5.397777% |
| C | 5669 | 1055 | 18.609984% |
| D | 5669 | 2947 | 51.984477% |
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 | 6808 | 5668 | 4280 | 4280 | 62.87% | 75.51% |  |
| B | 6809 | 5670 | 246 | 246 | 3.61% | 4.34% |  |
| C | 6809 | 5670 | 951 | 951 | 13.97% | 16.77% |  |
| D | 6809 | 5670 | 2422 | 2422 | 35.57% | 42.72% |  |
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 | 9 | 191 | 10907506 | 127576.91 | 337 | 327 | 85.5 |
| A | 15 | 190 | 543122 | 6348.86 | 337 | 327 | 85.5 |
| A | 0 | 8 | 305018 | 3563.85 | 337 | 327 | 85.5 |
| B | 10 | 254 | 2763684 | 22797.63 | 570 | 553 | 121.2 |
| B | 4 | 81 | 51448 | 419.92 | 570 | 553 | 121.2 |
| B | 5 | 172 | 48043 | 391.82 | 570 | 553 | 121.2 |
| C | 9 | 38 | 1495614 | 10239.77 | 522 | 515 | 146.0 |
| C | 15 | 224 | 927245 | 6347.08 | 522 | 515 | 146.0 |
| C | 1 | 241 | 860561 | 5890.36 | 522 | 515 | 146.0 |
| D | 2 | 62 | 5217438 | 40285.07 | 443 | 423 | 129.5 |
| D | 8 | 176 | 1868164 | 14422.44 | 443 | 423 | 129.5 |
| D | 11 | 176 | 830784 | 6411.93 | 443 | 423 | 129.5 |
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 |  |