Observation information
- date-obs: 2023-04-22
- time-obs: 09:25:59.521700000
- date-end: 2023-04-22
- time-end: 11:24:54.516300000
- obs_id: A12_102T01_9000005576
- exposure: 5356.32300055
- sourceid: 1ES 1927+654
- observer: savithri
- ra_pnt: 291.8314
- dec_pnt: 65.56506
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_102T01_9000005576_40904cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005576_40904cztM0_level2_quad_clean.evt
|
Size (bytes) | 332,533,440 | 89,084,160 |
Size | 317.1 MB
| 85.0 MB
|
Events in quadrant A | 2,876,492 | 597,204 |
Events in quadrant B | 2,990,838 | 608,479 |
Events in quadrant C | 2,585,104 | 580,731 |
Events in quadrant D | 3,421,655 | 520,666 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 112 | 0 |
B | 0 | 112 | 0 |
C | 0 | 112 | 0 |
D | 0 | 112 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11807 | 2 |
B | 0 | 12721 | 1 |
C | 0 | 11292 | 1 |
D | 0 | 14097 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 16 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5583 | 11 | 0.197027% |
B | 5583 | 115 | 2.059824% |
C | 5583 | 6 | 0.107469% |
D | 5583 | 187 | 3.349454% |
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 | 7135 | 5584 | 1 | 1 | 0.01% | 0.02% |  |
B | 7135 | 5584 | 59 | 59 | 0.83% | 1.06% |  |
C | 7135 | 5584 | 4 | 4 | 0.06% | 0.07% |  |
D | 7135 | 5584 | 158 | 158 | 2.21% | 2.83% |  |
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 | 478909 | 3803.0 | 608 | 594 | 125.8 |
A | 13 | 248 | 18310 | 140.86 | 608 | 594 | 125.8 |
A | 12 | 189 | 16205 | 124.12 | 608 | 594 | 125.8 |
B | 4 | 171 | 424889 | 3644.85 | 599 | 582 | 116.4 |
B | 0 | 190 | 77847 | 663.72 | 599 | 582 | 116.4 |
B | 15 | 85 | 69748 | 594.15 | 599 | 582 | 116.4 |
C | 15 | 214 | 234159 | 1694.93 | 589 | 591 | 137.8 |
C | 0 | 10 | 33611 | 239.62 | 589 | 591 | 137.8 |
C | 10 | 70 | 9637 | 65.64 | 589 | 591 | 137.8 |
D | 12 | 128 | 502250 | 3485.75 | 583 | 565 | 143.9 |
D | 2 | 249 | 170822 | 1182.96 | 583 | 565 | 143.9 |
D | 13 | 249 | 139739 | 966.99 | 583 | 565 | 143.9 |
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 |  |