Observation information
- date-obs: 2024-04-17
- time-obs: 10:02:06.998600000
- date-end: 2024-04-17
- time-end: 12:03:30.993400000
- obs_id: A13_094T02_9000006190
- exposure: 5484.75901234
- sourceid: NGC 6251
- observer: sannagulati
- ra_pnt: 248.1332
- dec_pnt: 82.53789
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_094T02_9000006190_46255cztM0_level2.fits
| modeM0/AS1A13_094T02_9000006190_46255cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,472,640 | 101,286,720 |
| Size | 467.8 MB
| 96.6 MB
|
| Events in quadrant A | 5,713,803 | 682,090 |
| Events in quadrant B | 3,529,206 | 707,157 |
| Events in quadrant C | 3,207,009 | 679,308 |
| Events in quadrant D | 5,221,982 | 563,065 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20713 | 1 |
| B | 0 | 14448 | 1 |
| C | 0 | 13922 | 1 |
| D | 0 | 19769 | 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 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6229 | 196 | 3.146572% |
| B | 6230 | 133 | 2.134831% |
| C | 6230 | 146 | 2.343499% |
| D | 6230 | 814 | 13.065811% |
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 | 7284 | 6230 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7285 | 6230 | 37 | 37 | 0.51% | 0.59% |  |
| C | 7284 | 6229 | 83 | 83 | 1.14% | 1.33% |  |
| D | 7285 | 6230 | 727 | 727 | 9.98% | 11.67% |  |
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 | 10 | 83 | 3008375 | 21073.38 | 690 | 675 | 142.7 |
| A | 9 | 191 | 12604 | 83.58 | 690 | 675 | 142.7 |
| A | 13 | 254 | 9908 | 64.69 | 690 | 675 | 142.7 |
| B | 3 | 112 | 562415 | 4177.13 | 686 | 666 | 134.5 |
| B | 5 | 172 | 144465 | 1069.28 | 686 | 666 | 134.5 |
| B | 0 | 156 | 42420 | 310.48 | 686 | 666 | 134.5 |
| C | 12 | 2 | 398170 | 2519.6 | 676 | 677 | 157.8 |
| C | 1 | 3 | 64460 | 404.3 | 676 | 677 | 157.8 |
| C | 14 | 254 | 42083 | 262.46 | 676 | 677 | 157.8 |
| D | 1 | 52 | 1154376 | 7139.22 | 646 | 625 | 161.6 |
| D | 8 | 129 | 919202 | 5684.0 | 646 | 625 | 161.6 |
| D | 5 | 235 | 415241 | 2565.58 | 646 | 625 | 161.6 |
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 |  |