Observation information
- date-obs: 2024-09-14
- time-obs: 09:40:20.171300000
- date-end: 2024-09-14
- time-end: 11:45:05.162500000
- obs_id: A13_081T01_9000006428
- exposure: 6844.79071921
- 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/AS1A13_081T01_9000006428_48479cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48479cztM0_level2_quad_clean.evt
|
Size (bytes) | 516,257,280 | 114,641,280 |
Size | 492.3 MB
| 109.3 MB
|
Events in quadrant A | 7,335,777 | 743,780 |
Events in quadrant B | 3,356,040 | 793,729 |
Events in quadrant C | 3,245,504 | 762,983 |
Events in quadrant D | 4,591,161 | 649,574 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27730 | 0 |
B | 0 | 15666 | 0 |
C | 0 | 15677 | 0 |
D | 0 | 19171 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 150 | 0 |
B | 0 | 150 | 0 |
C | 0 | 150 | 0 |
D | 0 | 150 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7485 | 511 | 6.826987% |
B | 7486 | 289 | 3.860540% |
C | 7486 | 182 | 2.431205% |
D | 7486 | 655 | 8.749666% |
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 | 7485 | 7485 | 2 | 2 | 0.03% | 0.03% | |
B | 7486 | 7486 | 6 | 6 | 0.08% | 0.08% | |
C | 7486 | 7486 | 14 | 14 | 0.19% | 0.19% | |
D | 7486 | 7486 | 262 | 262 | 3.50% | 3.50% | |
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 | 4170051 | 24410.75 | 814 | 793 | 170.8 |
A | 13 | 254 | 14473 | 80.1 | 814 | 793 | 170.8 |
A | 3 | 137 | 9743 | 52.4 | 814 | 793 | 170.8 |
B | 0 | 186 | 53041 | 322.28 | 817 | 789 | 162.1 |
B | 8 | 234 | 42619 | 258.0 | 817 | 789 | 162.1 |
B | 12 | 111 | 20828 | 123.59 | 817 | 789 | 162.1 |
C | 12 | 250 | 63512 | 331.59 | 807 | 809 | 189.1 |
C | 3 | 233 | 16610 | 83.56 | 807 | 809 | 189.1 |
C | 14 | 67 | 9122 | 43.96 | 807 | 809 | 189.1 |
D | 2 | 249 | 1057272 | 5356.67 | 790 | 761 | 197.2 |
D | 10 | 199 | 144263 | 727.58 | 790 | 761 | 197.2 |
D | 7 | 38 | 104484 | 525.89 | 790 | 761 | 197.2 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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Quadrant B |
Quadrant D |
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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 |
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|
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 |
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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 | |