Observation information
- date-obs: 2025-06-22
- time-obs: 01:41:55.365100000
- date-end: 2025-06-22
- time-end: 03:42:00.349000000
- obs_id: C09_011T07_9000006480
- exposure: 4592.23074943
- 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_52646cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52646cztM0_level2_quad_clean.evt
|
| Size (bytes) | 700,280,640 | 93,772,800 |
| Size | 667.8 MB
| 89.4 MB
|
| Events in quadrant A | 3,752,468 | 666,473 |
| Events in quadrant B | 4,364,663 | 689,362 |
| Events in quadrant C | 11,197,502 | 418,229 |
| Events in quadrant D | 6,061,840 | 574,144 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16367 | 1 |
| B | 0 | 18028 | 2 |
| C | 0 | 38172 | 1 |
| D | 0 | 23031 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7046 | 94 | 1.334090% |
| B | 7045 | 280 | 3.974450% |
| C | 7045 | 2732 | 38.779276% |
| D | 7045 | 437 | 6.202981% |
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 | 7206 | 7048 | 72 | 72 | 1.00% | 1.02% |  |
| B | 7205 | 7047 | 135 | 135 | 1.87% | 1.92% |  |
| C | 7205 | 7047 | 2486 | 2486 | 34.50% | 35.28% |  |
| D | 7205 | 7046 | 411 | 411 | 5.70% | 5.83% |  |
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 | 295741 | 1629.47 | 722 | 702 | 181.1 |
| A | 3 | 14 | 145604 | 800.28 | 722 | 702 | 181.1 |
| A | 5 | 240 | 60040 | 327.72 | 722 | 702 | 181.1 |
| B | 5 | 185 | 491774 | 3268.73 | 710 | 685 | 150.2 |
| B | 8 | 234 | 271704 | 1803.93 | 710 | 685 | 150.2 |
| B | 12 | 32 | 221502 | 1469.78 | 710 | 685 | 150.2 |
| C | 15 | 248 | 4204852 | 26235.63 | 580 | 574 | 160.3 |
| C | 15 | 178 | 3556842 | 22191.9 | 580 | 574 | 160.3 |
| C | 13 | 3 | 698352 | 4354.29 | 580 | 574 | 160.3 |
| D | 6 | 42 | 1153324 | 5890.1 | 678 | 645 | 195.7 |
| D | 8 | 176 | 623695 | 3183.74 | 678 | 645 | 195.7 |
| D | 2 | 153 | 411387 | 2098.86 | 678 | 645 | 195.7 |
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 |  |