Observation information
- date-obs: 2025-05-16
- time-obs: 21:47:02.754300000
- date-end: 2025-05-17
- time-end: 00:02:41.735300000
- obs_id: C09_011T07_9000006470
- exposure: 273.159103036
- 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_52109cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52109cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,187,798,400 | 79,974,720 |
| Size | 1.1 GB
| 76.3 MB
|
| Events in quadrant A | 4,886,566 | 724,094 |
| Events in quadrant B | 8,386,796 | 618,376 |
| Events in quadrant C | 10,606,661 | 510,556 |
| Events in quadrant D | 19,484,158 | 24,438 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20150 | 2 |
| B | 0 | 30167 | 1 |
| C | 0 | 37006 | 1 |
| D | 0 | 63295 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7817 | 179 | 2.289881% |
| B | 7817 | 1881 | 24.062940% |
| C | 7817 | 2564 | 32.800307% |
| D | 7817 | 7623 | 97.518229% |
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 | 7817 | 7817 | 153 | 153 | 1.96% | 1.96% |  |
| B | 7817 | 7817 | 1480 | 1480 | 18.93% | 18.93% |  |
| C | 7817 | 7816 | 1967 | 1967 | 25.16% | 25.17% |  |
| D | 7817 | 7817 | 6705 | 6705 | 85.77% | 85.77% |  |
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 | 507509 | 2466.75 | 821 | 799 | 205.4 |
| A | 4 | 3 | 240492 | 1166.87 | 821 | 799 | 205.4 |
| A | 3 | 61 | 208927 | 1013.2 | 821 | 799 | 205.4 |
| B | 8 | 3 | 4082695 | 26847.83 | 721 | 697 | 152.0 |
| B | 12 | 32 | 419103 | 2751.91 | 721 | 697 | 152.0 |
| B | 0 | 216 | 162779 | 1066.03 | 721 | 697 | 152.0 |
| C | 15 | 224 | 5423624 | 28375.4 | 687 | 681 | 191.1 |
| C | 12 | 247 | 560847 | 2931.05 | 687 | 681 | 191.1 |
| C | 2 | 239 | 465870 | 2434.09 | 687 | 681 | 191.1 |
| D | 6 | 42 | 14879878 | 167537.19 | 306 | 292 | 88.8 |
| D | 15 | 94 | 1778542 | 20022.26 | 306 | 292 | 88.8 |
| D | 12 | 17 | 416194 | 4682.86 | 306 | 292 | 88.8 |
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 |  |