Observation information
- date-obs: 2023-01-03
- time-obs: 03:45:15.706700000
- date-end: 2023-01-03
- time-end: 06:06:33.702800000
- obs_id: A12_025T12_9000005458
- exposure: 2581.84928405
- 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_39287cztM0_level2.fits
| modeM0/AS1A12_025T12_9000005458_39287cztM0_level2_quad_clean.evt
|
Size (bytes) | 525,349,440 | 88,600,320 |
Size | 501.0 MB
| 84.5 MB
|
Events in quadrant A | 2,982,457 | 669,744 |
Events in quadrant B | 2,626,987 | 693,008 |
Events in quadrant C | 2,645,912 | 654,165 |
Events in quadrant D | 10,787,472 | 302,165 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11902 | 3 |
B | 0 | 10926 | 2 |
C | 0 | 10649 | 2 |
D | 0 | 35597 | 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 | 5194 | 13 | 0.250289% |
B | 5194 | 32 | 0.616095% |
C | 5194 | 2 | 0.038506% |
D | 5194 | 2940 | 56.603774% |
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 | 7287 | 5195 | 5 | 5 | 0.07% | 0.10% |  |
B | 7287 | 5195 | 17 | 17 | 0.23% | 0.33% |  |
C | 7287 | 5195 | 0 | 0 | 0.00% | 0.00% |  |
D | 7287 | 5195 | 2913 | 2913 | 39.98% | 56.07% |  |
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 | 425848 | 3345.92 | 631 | 620 | 127.1 |
A | 15 | 222 | 107932 | 844.39 | 631 | 620 | 127.1 |
A | 3 | 1 | 8265 | 60.15 | 631 | 620 | 127.1 |
B | 5 | 172 | 80691 | 670.21 | 626 | 609 | 119.5 |
B | 5 | 255 | 61292 | 507.86 | 626 | 609 | 119.5 |
B | 12 | 111 | 14512 | 116.35 | 626 | 609 | 119.5 |
C | 15 | 214 | 219851 | 1540.91 | 614 | 622 | 142.3 |
C | 9 | 187 | 16687 | 112.92 | 614 | 622 | 142.3 |
C | 3 | 233 | 9127 | 59.78 | 614 | 622 | 142.3 |
D | 12 | 235 | 8591148 | 75426.28 | 469 | 458 | 113.9 |
D | 5 | 222 | 212317 | 1860.12 | 469 | 458 | 113.9 |
D | 13 | 249 | 86166 | 752.52 | 469 | 458 | 113.9 |
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 |  |