Observation information
- date-obs: 2023-01-03
- time-obs: 02:00:15.710000000
- date-end: 2023-01-03
- time-end: 04:23:18.705700000
- obs_id: A12_025T12_9000005458
- exposure: 3365.36012661
- sourceid: NGC4459
- observer: rosolowsky
- ra_pnt: 187.25
- dec_pnt: 13.97837
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A12_025T12_9000005458_39286cztM0_level2.fits
| modeM0/AS1A12_025T12_9000005458_39286cztM0_level2_quad_clean.evt
|
| Size (bytes) | 510,304,320 | 92,560,320 |
| Size | 486.7 MB
| 88.3 MB
|
| Events in quadrant A | 2,998,577 | 678,646 |
| Events in quadrant B | 2,738,434 | 702,511 |
| Events in quadrant C | 2,828,296 | 660,963 |
| Events in quadrant D | 9,905,885 | 383,308 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110 | 0 |
| B | 0 | 110 | 0 |
| C | 0 | 110 | 0 |
| D | 0 | 110 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12050 | 3 |
| B | 0 | 11501 | 2 |
| C | 0 | 11443 | 2 |
| D | 0 | 33123 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31 | 0 |
| B | 0 | 31 | 0 |
| C | 0 | 31 | 0 |
| D | 0 | 32 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5390 | 15 | 0.278293% |
| B | 5390 | 50 | 0.927644% |
| C | 5390 | 9 | 0.166976% |
| D | 5390 | 2265 | 42.022263% |
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 | 7362 | 5391 | 7 | 7 | 0.10% | 0.13% |  |
| B | 7362 | 5391 | 28 | 28 | 0.38% | 0.52% |  |
| C | 7362 | 5391 | 15 | 15 | 0.20% | 0.28% |  |
| D | 7362 | 5391 | 2338 | 2338 | 31.76% | 43.37% |  |
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 | 425054 | 3287.37 | 638 | 627 | 129.1 |
| A | 15 | 222 | 94780 | 729.26 | 638 | 627 | 129.1 |
| A | 13 | 248 | 11229 | 82.12 | 638 | 627 | 129.1 |
| B | 5 | 172 | 158631 | 1308.34 | 635 | 619 | 120.8 |
| B | 5 | 255 | 62618 | 513.35 | 635 | 619 | 120.8 |
| B | 5 | 184 | 18673 | 149.49 | 635 | 619 | 120.8 |
| C | 15 | 214 | 227430 | 1585.42 | 621 | 626 | 143.1 |
| C | 9 | 187 | 170969 | 1190.74 | 621 | 626 | 143.1 |
| C | 8 | 222 | 4403 | 26.4 | 621 | 626 | 143.1 |
| D | 12 | 235 | 7635561 | 62240.24 | 506 | 491 | 122.7 |
| D | 2 | 249 | 102541 | 831.9 | 506 | 491 | 122.7 |
| D | 13 | 249 | 87960 | 713.04 | 506 | 491 | 122.7 |
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 |  |