Observation information
- date-obs: 2025-06-16
- time-obs: 10:22:29.431500000
- date-end: 2025-06-16
- time-end: 15:48:01.392200000
- obs_id: C09_011T06_9000006478
- exposure: 11758.3952751
- 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_52564cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52564cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,936,465,920 | 233,585,280 |
| Size | 1.8 GB
| 222.8 MB
|
| Events in quadrant A | 10,033,090 | 1,664,707 |
| Events in quadrant B | 14,726,509 | 1,734,004 |
| Events in quadrant C | 13,989,866 | 1,481,530 |
| Events in quadrant D | 31,522,037 | 929,279 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 42677 | 3 |
| B | 0 | 56354 | 3 |
| C | 0 | 54409 | 3 |
| D | 0 | 106419 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 372 | 0 |
| B | 0 | 372 | 0 |
| C | 0 | 372 | 0 |
| D | 0 | 372 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18297 | 491 | 2.683500% |
| B | 18297 | 1147 | 6.268787% |
| C | 18297 | 1166 | 6.372629% |
| D | 18297 | 7523 | 41.116030% |
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 | 19532 | 18301 | 207 | 207 | 1.06% | 1.13% |  |
| B | 19532 | 18301 | 540 | 540 | 2.76% | 2.95% |  |
| C | 19532 | 18300 | 1075 | 1075 | 5.50% | 5.87% |  |
| D | 19531 | 18299 | 6865 | 6865 | 35.15% | 37.52% |  |
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 | 5 | 243 | 447292 | 931.0 | 1936 | 1888 | 478.4 |
| A | 4 | 249 | 361223 | 751.1 | 1936 | 1888 | 478.4 |
| A | 7 | 112 | 216398 | 448.38 | 1936 | 1888 | 478.4 |
| B | 4 | 170 | 1489233 | 3728.98 | 1879 | 1813 | 398.9 |
| B | 7 | 0 | 1450892 | 3632.86 | 1879 | 1813 | 398.9 |
| B | 10 | 44 | 1109469 | 2776.91 | 1879 | 1813 | 398.9 |
| C | 15 | 248 | 2560792 | 5043.91 | 1839 | 1814 | 507.3 |
| C | 10 | 22 | 1904873 | 3751.05 | 1839 | 1814 | 507.3 |
| C | 13 | 3 | 449522 | 882.46 | 1839 | 1814 | 507.3 |
| D | 6 | 42 | 7696050 | 17219.24 | 1559 | 1489 | 446.9 |
| D | 8 | 176 | 4963299 | 11103.76 | 1559 | 1489 | 446.9 |
| D | 12 | 17 | 2222700 | 4970.73 | 1559 | 1489 | 446.9 |
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 |  |