Observation information
- date-obs: 2025-06-22
- time-obs: 03:25:52.350900000
- date-end: 2025-06-22
- time-end: 05:25:10.335600000
- obs_id: C09_011T07_9000006480
- exposure: 6371.79340762
- 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_9000006480_52647cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52647cztM0_level2_quad_clean.evt
|
| Size (bytes) | 571,314,240 | 98,677,440 |
| Size | 544.8 MB
| 94.1 MB
|
| Events in quadrant A | 3,826,012 | 659,609 |
| Events in quadrant B | 4,747,733 | 677,710 |
| Events in quadrant C | 7,071,584 | 567,758 |
| Events in quadrant D | 4,947,799 | 584,362 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16408 | 0 |
| B | 0 | 19194 | 0 |
| C | 0 | 25846 | 0 |
| D | 0 | 19765 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7158 | 75 | 1.047779% |
| B | 7159 | 380 | 5.308004% |
| C | 7159 | 881 | 12.306188% |
| D | 7159 | 228 | 3.184802% |
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 | 7158 | 7158 | 73 | 73 | 1.02% | 1.02% |  |
| B | 7159 | 7159 | 241 | 241 | 3.37% | 3.37% |  |
| C | 7159 | 7159 | 891 | 891 | 12.45% | 12.45% |  |
| D | 7159 | 7159 | 228 | 228 | 3.18% | 3.18% |  |
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 | 7 | 206 | 311797 | 1707.96 | 721 | 703 | 182.1 |
| A | 3 | 14 | 209547 | 1146.59 | 721 | 703 | 182.1 |
| A | 14 | 239 | 146200 | 798.81 | 721 | 703 | 182.1 |
| B | 5 | 185 | 700483 | 4658.47 | 708 | 684 | 150.2 |
| B | 4 | 173 | 404525 | 2688.32 | 708 | 684 | 150.2 |
| B | 12 | 32 | 297829 | 1978.06 | 708 | 684 | 150.2 |
| C | 15 | 248 | 1769470 | 9535.23 | 671 | 665 | 185.5 |
| C | 1 | 3 | 977555 | 5266.19 | 671 | 665 | 185.5 |
| C | 13 | 3 | 919200 | 4951.61 | 671 | 665 | 185.5 |
| D | 8 | 176 | 567174 | 2886.06 | 691 | 661 | 196.3 |
| D | 2 | 153 | 517760 | 2634.32 | 691 | 661 | 196.3 |
| D | 12 | 2 | 274204 | 1393.54 | 691 | 661 | 196.3 |
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 |  |