Observation information
- date-obs: 2025-05-14
- time-obs: 21:21:55.156900000
- date-end: 2025-05-14
- time-end: 23:26:11.140400000
- obs_id: C09_011T07_9000006470
- exposure: 54.3504501581
- 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_52079cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52079cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,142,614,080 | 72,132,480 |
| Size | 1.1 GB
| 68.8 MB
|
| Events in quadrant A | 4,014,966 | 643,689 |
| Events in quadrant B | 9,192,087 | 586,076 |
| Events in quadrant C | 9,849,386 | 466,466 |
| Events in quadrant D | 18,705,474 | 4,825 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16912 | 1 |
| B | 0 | 32175 | 1 |
| C | 0 | 34061 | 1 |
| D | 0 | 60071 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6927 | 141 | 2.035513% |
| B | 6927 | 1481 | 21.380107% |
| C | 6927 | 2212 | 31.933016% |
| D | 6926 | 6886 | 99.422466% |
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 | 7457 | 6928 | 104 | 104 | 1.39% | 1.50% |  |
| B | 7457 | 6928 | 1305 | 1305 | 17.50% | 18.84% |  |
| C | 7457 | 6928 | 2026 | 2026 | 27.17% | 29.24% |  |
| D | 7455 | 6925 | 6815 | 6815 | 91.42% | 98.41% |  |
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 | 6 | 196 | 361478 | 2003.99 | 707 | 688 | 180.0 |
| A | 8 | 43 | 183659 | 1016.3 | 707 | 688 | 180.0 |
| A | 4 | 3 | 101797 | 561.61 | 707 | 688 | 180.0 |
| B | 10 | 254 | 3318053 | 23322.69 | 672 | 650 | 142.2 |
| B | 10 | 128 | 1305904 | 9176.46 | 672 | 650 | 142.2 |
| B | 5 | 172 | 582155 | 4088.22 | 672 | 650 | 142.2 |
| C | 15 | 224 | 4267871 | 25020.47 | 610 | 606 | 170.6 |
| C | 15 | 193 | 1379094 | 8082.56 | 610 | 606 | 170.6 |
| C | 12 | 252 | 391749 | 2293.41 | 610 | 606 | 170.6 |
| D | 15 | 94 | 17453585 | 521074.23 | 109 | 104 | 33.5 |
| D | 6 | 42 | 415799 | 12410.59 | 109 | 104 | 33.5 |
| D | 11 | 176 | 112710 | 3361.86 | 109 | 104 | 33.5 |
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 |  |