Observation information
- date-obs: 2024-08-01
- time-obs: 00:00:43.276000000
- date-end: 2024-08-01
- time-end: 02:27:38.262700000
- obs_id: A13_081T01_9000006354
- exposure: 4898.94008631
- 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_9000006354_47821cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47821cztM0_level2_quad_clean.evt
|
Size (bytes) | 592,600,320 | 104,051,520 |
Size | 565.1 MB
| 99.2 MB
|
Events in quadrant A | 6,787,949 | 720,395 |
Events in quadrant B | 3,448,614 | 747,729 |
Events in quadrant C | 2,806,314 | 718,097 |
Events in quadrant D | 8,378,316 | 500,992 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22 | 0 |
B | 0 | 22 | 0 |
C | 0 | 22 | 0 |
D | 0 | 22 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24512 | 2 |
B | 0 | 15083 | 2 |
C | 0 | 13552 | 2 |
D | 0 | 29602 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6640 | 225 | 3.388554% |
B | 6641 | 69 | 1.039000% |
C | 6641 | 14 | 0.210812% |
D | 6641 | 1899 | 28.595091% |
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 | 8815 | 6642 | 94 | 94 | 1.07% | 1.42% | |
B | 8816 | 6642 | 21 | 21 | 0.24% | 0.32% | |
C | 8816 | 6643 | 3 | 3 | 0.03% | 0.05% | |
D | 8816 | 6641 | 1715 | 1715 | 19.45% | 25.82% | |
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 | 3941789 | 26827.75 | 710 | 697 | 146.9 |
A | 0 | 31 | 50443 | 338.63 | 710 | 697 | 146.9 |
A | 13 | 248 | 37262 | 248.9 | 710 | 697 | 146.9 |
B | 0 | 200 | 407609 | 2947.04 | 713 | 690 | 138.1 |
B | 5 | 32 | 91105 | 654.82 | 713 | 690 | 138.1 |
B | 0 | 186 | 39079 | 278.03 | 713 | 690 | 138.1 |
C | 14 | 254 | 19753 | 115.5 | 705 | 707 | 164.9 |
C | 1 | 3 | 17120 | 99.53 | 705 | 707 | 164.9 |
C | 12 | 2 | 14209 | 81.88 | 705 | 707 | 164.9 |
D | 12 | 3 | 3814271 | 25377.0 | 603 | 582 | 150.3 |
D | 12 | 2 | 1271638 | 8457.84 | 603 | 582 | 150.3 |
D | 2 | 249 | 751498 | 4996.74 | 603 | 582 | 150.3 |
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 |
|
|
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 | |