Observation information
- date-obs: 2025-07-04
- time-obs: 18:57:52.865600000
- date-end: 2025-07-04
- time-end: 21:01:57.850300000
- obs_id: C09_011T08_9000006482
- exposure: 5402.93727821
- 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_011T08_9000006482_52835cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006482_52835cztM0_level2_quad_clean.evt
|
| Size (bytes) | 927,722,880 | 91,267,200 |
| Size | 884.7 MB
| 87.0 MB
|
| Events in quadrant A | 9,874,970 | 562,670 |
| Events in quadrant B | 10,498,920 | 539,556 |
| Events in quadrant C | 7,035,695 | 558,247 |
| Events in quadrant D | 6,356,993 | 584,015 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34489 | 0 |
| B | 0 | 36366 | 1 |
| C | 0 | 26476 | 0 |
| D | 0 | 24104 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7445 | 1894 | 25.439893% |
| B | 7444 | 2433 | 32.684041% |
| C | 7445 | 1450 | 19.476158% |
| D | 7445 | 790 | 10.611148% |
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 | 7445 | 7445 | 1586 | 1586 | 21.30% | 21.30% |  |
| B | 7444 | 7444 | 1745 | 1745 | 23.44% | 23.44% |  |
| C | 7445 | 7445 | 1067 | 1067 | 14.33% | 14.33% |  |
| D | 7445 | 7445 | 597 | 597 | 8.02% | 8.02% |  |
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 | 9 | 191 | 3870021 | 21236.23 | 724 | 707 | 182.2 |
| A | 3 | 62 | 943709 | 5175.54 | 724 | 707 | 182.2 |
| A | 3 | 14 | 708448 | 3884.35 | 724 | 707 | 182.2 |
| B | 8 | 3 | 5320768 | 36157.85 | 697 | 672 | 147.1 |
| B | 10 | 254 | 1227017 | 8334.81 | 697 | 672 | 147.1 |
| B | 6 | 203 | 447163 | 3034.56 | 697 | 672 | 147.1 |
| C | 15 | 224 | 2835619 | 14506.01 | 699 | 690 | 195.4 |
| C | 4 | 5 | 435878 | 2226.81 | 699 | 690 | 195.4 |
| C | 2 | 12 | 353479 | 1805.18 | 699 | 690 | 195.4 |
| D | 12 | 17 | 1045162 | 5007.01 | 732 | 699 | 208.6 |
| D | 3 | 224 | 778429 | 3728.33 | 732 | 699 | 208.6 |
| D | 8 | 176 | 499419 | 2390.79 | 732 | 699 | 208.6 |
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 |  |