Observation information
- date-obs: 2025-06-13
- time-obs: 18:06:51.954800000
- date-end: 2025-06-13
- time-end: 20:07:41.936600000
- obs_id: C09_011T06_9000006478
- exposure: 5286.5321604
- 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_011T06_9000006478_52522cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52522cztM0_level2_quad_clean.evt
|
| Size (bytes) | 617,941,440 | 92,119,680 |
| Size | 589.3 MB
| 87.9 MB
|
| Events in quadrant A | 3,709,263 | 648,425 |
| Events in quadrant B | 3,777,044 | 649,554 |
| Events in quadrant C | 6,896,570 | 542,954 |
| Events in quadrant D | 8,005,326 | 510,015 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15748 | 1 |
| B | 0 | 15594 | 1 |
| C | 0 | 24838 | 2 |
| D | 0 | 28164 | 1 |
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6275 | 181 | 2.884462% |
| B | 6276 | 229 | 3.648821% |
| C | 6275 | 974 | 15.521912% |
| D | 6275 | 1242 | 19.792829% |
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 | 7250 | 6276 | 146 | 146 | 2.01% | 2.33% |  |
| B | 7251 | 6277 | 168 | 168 | 2.32% | 2.68% |  |
| C | 7250 | 6276 | 936 | 936 | 12.91% | 14.91% |  |
| D | 7250 | 6276 | 1266 | 1266 | 17.46% | 20.17% |  |
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 | 3 | 45 | 391679 | 2288.92 | 670 | 654 | 170.8 |
| A | 5 | 243 | 243157 | 1419.53 | 670 | 654 | 170.8 |
| A | 3 | 14 | 109013 | 634.29 | 670 | 654 | 170.8 |
| B | 4 | 81 | 384931 | 2752.7 | 652 | 631 | 139.6 |
| B | 12 | 32 | 196245 | 1401.16 | 652 | 631 | 139.6 |
| B | 1 | 255 | 147310 | 1050.65 | 652 | 631 | 139.6 |
| C | 4 | 5 | 1236724 | 7051.56 | 618 | 611 | 175.3 |
| C | 13 | 3 | 787828 | 4490.78 | 618 | 611 | 175.3 |
| C | 15 | 233 | 547290 | 3118.6 | 618 | 611 | 175.3 |
| D | 15 | 93 | 2016510 | 11223.7 | 609 | 579 | 179.6 |
| D | 6 | 42 | 1144539 | 6369.0 | 609 | 579 | 179.6 |
| D | 8 | 176 | 440671 | 2450.21 | 609 | 579 | 179.6 |
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 |  |