Observation information
- date-obs: 2025-05-16
- time-obs: 18:32:05.781000000
- date-end: 2025-05-16
- time-end: 20:33:50.762000000
- obs_id: C09_011T07_9000006470
- exposure: 150.329027414
- 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_52107cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52107cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,035,518,400 | 61,928,640 |
| Size | 987.5 MB
| 59.1 MB
|
| Events in quadrant A | 3,232,721 | 598,832 |
| Events in quadrant B | 9,491,497 | 453,949 |
| Events in quadrant C | 9,914,840 | 369,244 |
| Events in quadrant D | 15,205,318 | 12,571 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14099 | 1 |
| B | 0 | 32613 | 6 |
| C | 0 | 33808 | 1 |
| D | 0 | 49438 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6305 | 72 | 1.141951% |
| B | 6304 | 2270 | 36.008883% |
| C | 6304 | 2680 | 42.512690% |
| D | 6305 | 6196 | 98.271213% |
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 | 7305 | 6306 | 50 | 50 | 0.68% | 0.79% |  |
| B | 7304 | 6305 | 1782 | 1782 | 24.40% | 28.26% |  |
| C | 7304 | 6305 | 2000 | 2000 | 27.38% | 31.72% |  |
| D | 7305 | 6305 | 5369 | 5369 | 73.50% | 85.15% |  |
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 | 8 | 43 | 173554 | 1049.31 | 655 | 639 | 164.8 |
| A | 4 | 3 | 104466 | 630.06 | 655 | 639 | 164.8 |
| A | 4 | 249 | 97998 | 590.81 | 655 | 639 | 164.8 |
| B | 8 | 3 | 5501519 | 44508.39 | 578 | 559 | 123.6 |
| B | 10 | 254 | 317192 | 2561.88 | 578 | 559 | 123.6 |
| B | 4 | 171 | 304582 | 2459.86 | 578 | 559 | 123.6 |
| C | 15 | 224 | 5636936 | 39540.75 | 510 | 505 | 142.5 |
| C | 5 | 80 | 1264980 | 8870.56 | 510 | 505 | 142.5 |
| C | 13 | 3 | 244952 | 1714.85 | 510 | 505 | 142.5 |
| D | 6 | 42 | 13414224 | 247007.32 | 186 | 177 | 54.3 |
| D | 15 | 94 | 584586 | 10761.35 | 186 | 177 | 54.3 |
| D | 11 | 176 | 101709 | 1869.62 | 186 | 177 | 54.3 |
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 |  |