Observation information
- date-obs: 2025-05-26
- time-obs: 11:01:22.872200000
- date-end: 2025-05-26
- time-end: 13:09:51.855300000
- obs_id: C09_011T08_9000006472
- exposure: 5465.83296043
- 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_9000006472_52251cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006472_52251cztM0_level2_quad_clean.evt
|
| Size (bytes) | 687,096,000 | 91,998,720 |
| Size | 655.3 MB
| 87.7 MB
|
| Events in quadrant A | 4,624,674 | 634,862 |
| Events in quadrant B | 5,581,682 | 634,769 |
| Events in quadrant C | 8,635,766 | 511,732 |
| Events in quadrant D | 6,077,472 | 540,056 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18215 | 1 |
| B | 0 | 21191 | 1 |
| C | 0 | 30265 | 1 |
| D | 0 | 22653 | 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 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6649 | 243 | 3.654685% |
| B | 6650 | 760 | 11.428571% |
| C | 6650 | 1535 | 23.082707% |
| D | 6650 | 623 | 9.368421% |
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 | 7709 | 6650 | 122 | 122 | 1.58% | 1.83% |  |
| B | 7710 | 6651 | 460 | 460 | 5.97% | 6.92% |  |
| C | 7710 | 6651 | 1302 | 1302 | 16.89% | 19.58% |  |
| D | 7710 | 6651 | 560 | 560 | 7.26% | 8.42% |  |
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 | 12 | 3 | 686540 | 3950.59 | 702 | 686 | 173.6 |
| A | 5 | 240 | 194877 | 1118.56 | 702 | 686 | 173.6 |
| A | 15 | 174 | 186546 | 1070.57 | 702 | 686 | 173.6 |
| B | 12 | 32 | 1043376 | 7370.01 | 668 | 644 | 141.5 |
| B | 4 | 81 | 275475 | 1942.5 | 668 | 644 | 141.5 |
| B | 10 | 254 | 246556 | 1738.1 | 668 | 644 | 141.5 |
| C | 15 | 224 | 4421303 | 25709.49 | 625 | 618 | 171.9 |
| C | 9 | 38 | 721344 | 4191.54 | 625 | 618 | 171.9 |
| C | 15 | 189 | 186114 | 1078.79 | 625 | 618 | 171.9 |
| D | 6 | 42 | 2051161 | 10946.04 | 663 | 634 | 187.3 |
| D | 8 | 176 | 854531 | 4558.24 | 663 | 634 | 187.3 |
| D | 7 | 96 | 98634 | 523.14 | 663 | 634 | 187.3 |
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 |  |