Observation information
- date-obs: 2023-01-03
- time-obs: 05:31:55.703800000
- date-end: 2023-01-03
- time-end: 07:48:45.701100000
- obs_id: A12_025T12_9000005458
- exposure: 1071.32990783
- 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_39288cztM0_level2.fits
| modeM0/AS1A12_025T12_9000005458_39288cztM0_level2_quad_clean.evt
|
| Size (bytes) | 556,473,600 | 78,629,760 |
| Size | 530.7 MB
| 75.0 MB
|
| Events in quadrant A | 2,857,101 | 635,188 |
| Events in quadrant B | 2,633,452 | 649,165 |
| Events in quadrant C | 2,811,494 | 619,341 |
| Events in quadrant D | 11,907,813 | 126,958 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 102 | 0 |
| B | 0 | 102 | 0 |
| C | 0 | 102 | 0 |
| D | 0 | 102 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11323 | 3 |
| B | 0 | 10831 | 2 |
| C | 0 | 11235 | 2 |
| D | 0 | 38878 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32 | 0 |
| B | 0 | 32 | 0 |
| C | 0 | 32 | 0 |
| D | 0 | 33 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4997 | 12 | 0.240144% |
| B | 4997 | 90 | 1.801081% |
| C | 4997 | 8 | 0.160096% |
| D | 4997 | 4118 | 82.409446% |
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 | 7149 | 4998 | 5 | 5 | 0.07% | 0.10% |  |
| B | 7149 | 4998 | 62 | 62 | 0.87% | 1.24% |  |
| C | 7149 | 4998 | 4 | 4 | 0.06% | 0.08% |  |
| D | 7149 | 4997 | 3776 | 3776 | 52.82% | 75.57% |  |
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 | 420764 | 3406.34 | 609 | 597 | 123.3 |
| A | 15 | 222 | 72246 | 580.87 | 609 | 597 | 123.3 |
| A | 13 | 248 | 11931 | 91.89 | 609 | 597 | 123.3 |
| B | 5 | 172 | 250576 | 2169.61 | 599 | 584 | 115.2 |
| B | 0 | 190 | 21117 | 178.2 | 599 | 584 | 115.2 |
| B | 12 | 111 | 13779 | 114.52 | 599 | 584 | 115.2 |
| C | 9 | 187 | 270486 | 1960.24 | 591 | 596 | 137.7 |
| C | 15 | 214 | 211844 | 1534.32 | 591 | 596 | 137.7 |
| C | 0 | 10 | 11451 | 78.84 | 591 | 596 | 137.7 |
| D | 12 | 235 | 10361787 | 124351.6 | 334 | 324 | 83.3 |
| D | 5 | 222 | 175550 | 2102.95 | 334 | 324 | 83.3 |
| D | 2 | 120 | 28052 | 332.77 | 334 | 324 | 83.3 |
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 |  |