Observation information
- date-obs: 2025-05-17
- time-obs: 15:29:33.603500000
- date-end: 2025-05-17
- time-end: 17:25:22.587600000
- obs_id: C09_011T07_9000006470
- exposure: 7.73142057657
- 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_52120cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52120cztM0_level2_quad_clean.evt
|
| Size (bytes) | 874,932,480 | 64,800,000 |
| Size | 834.4 MB
| 61.8 MB
|
| Events in quadrant A | 2,926,594 | 563,715 |
| Events in quadrant B | 5,248,745 | 590,700 |
| Events in quadrant C | 8,237,094 | 400,736 |
| Events in quadrant D | 15,525,916 | 841 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 118 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12550 | 1 |
| B | 0 | 19739 | 1 |
| C | 0 | 28476 | 1 |
| D | 0 | 49941 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5799 | 99 | 1.707191% |
| B | 5800 | 304 | 5.241379% |
| C | 5800 | 1936 | 33.379310% |
| D | 5799 | 5793 | 99.896534% |
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 | 6949 | 5800 | 35 | 35 | 0.50% | 0.60% |  |
| B | 6950 | 5801 | 141 | 141 | 2.03% | 2.43% |  |
| C | 6950 | 5801 | 1460 | 1460 | 21.01% | 25.17% |  |
| D | 6948 | 5798 | 5647 | 5647 | 81.28% | 97.40% |  |
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 | 203470 | 1318.87 | 614 | 599 | 153.8 |
| A | 14 | 254 | 55182 | 354.84 | 614 | 599 | 153.8 |
| A | 7 | 206 | 36237 | 231.68 | 614 | 599 | 153.8 |
| B | 5 | 172 | 1576622 | 12357.13 | 604 | 583 | 127.5 |
| B | 4 | 171 | 536895 | 4205.02 | 604 | 583 | 127.5 |
| B | 0 | 216 | 121191 | 945.64 | 604 | 583 | 127.5 |
| C | 15 | 224 | 4279355 | 30164.63 | 517 | 513 | 141.8 |
| C | 2 | 239 | 815133 | 5742.84 | 517 | 513 | 141.8 |
| C | 13 | 3 | 650344 | 4581.12 | 517 | 513 | 141.8 |
| D | 15 | 94 | 11075624 | 290449.66 | 127 | 120 | 38.1 |
| D | 6 | 42 | 3264604 | 85609.49 | 127 | 120 | 38.1 |
| D | 8 | 176 | 200175 | 5246.34 | 127 | 120 | 38.1 |
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 |  |