Observation information
- date-obs: 2024-08-01
- time-obs: 03:48:58.256000000
- date-end: 2024-08-01
- time-end: 05:56:47.244000000
- obs_id: A13_081T01_9000006354
- exposure: 4762.36357713
- 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_47823cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47823cztM0_level2_quad_clean.evt
|
Size (bytes) | 536,431,680 | 103,383,360 |
Size | 511.6 MB
| 98.6 MB
|
Events in quadrant A | 6,747,175 | 722,162 |
Events in quadrant B | 3,158,108 | 753,039 |
Events in quadrant C | 2,720,620 | 714,809 |
Events in quadrant D | 6,729,217 | 489,297 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24357 | 2 |
B | 0 | 13922 | 2 |
C | 0 | 13105 | 2 |
D | 0 | 24621 | 5 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6464 | 217 | 3.357054% |
B | 6465 | 54 | 0.835267% |
C | 6465 | 6 | 0.092807% |
D | 6464 | 1707 | 26.407797% |
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 | 7669 | 6465 | 57 | 57 | 0.74% | 0.88% | |
B | 7670 | 6465 | 10 | 10 | 0.13% | 0.15% | |
C | 7670 | 6466 | 1 | 1 | 0.01% | 0.02% | |
D | 7668 | 6464 | 1517 | 1517 | 19.78% | 23.47% | |
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 | 3807397 | 26181.99 | 706 | 691 | 145.4 |
A | 0 | 31 | 168196 | 1152.08 | 706 | 691 | 145.4 |
A | 13 | 248 | 30730 | 206.6 | 706 | 691 | 145.4 |
B | 0 | 200 | 207052 | 1517.63 | 709 | 686 | 136.0 |
B | 4 | 171 | 41116 | 297.33 | 709 | 686 | 136.0 |
B | 12 | 3 | 32461 | 233.68 | 709 | 686 | 136.0 |
C | 14 | 254 | 21290 | 126.84 | 692 | 696 | 162.4 |
C | 13 | 61 | 4646 | 24.33 | 692 | 696 | 162.4 |
C | 3 | 233 | 2686 | 12.26 | 692 | 696 | 162.4 |
D | 12 | 33 | 2877505 | 19861.61 | 581 | 563 | 144.8 |
D | 2 | 249 | 645934 | 4455.46 | 581 | 563 | 144.8 |
D | 12 | 2 | 501182 | 3456.13 | 581 | 563 | 144.8 |
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 |
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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 | |