Observation information
- date-obs: 2024-07-31
- time-obs: 10:30:45.327500000
- date-end: 2024-07-31
- time-end: 12:36:04.321000000
- obs_id: A13_081T01_9000006354
- exposure: 6881.91647017
- 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_47812cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47812cztM0_level2_quad_clean.evt
|
Size (bytes) | 538,937,280 | 115,453,440 |
Size | 514.0 MB
| 110.1 MB
|
Events in quadrant A | 7,076,140 | 763,883 |
Events in quadrant B | 3,826,488 | 790,951 |
Events in quadrant C | 3,218,488 | 756,108 |
Events in quadrant D | 5,255,929 | 670,647 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1 | 0 |
B | 0 | 1 | 0 |
C | 0 | 1 | 0 |
D | 0 | 1 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 152 | 0 |
B | 0 | 152 | 0 |
C | 0 | 152 | 0 |
D | 0 | 152 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26619 | 2 |
B | 0 | 16256 | 2 |
C | 0 | 15367 | 2 |
D | 0 | 20896 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7380 | 354 | 4.796748% |
B | 7380 | 202 | 2.737127% |
C | 7380 | 141 | 1.910569% |
D | 7380 | 521 | 7.059621% |
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 | 7520 | 7382 | 0 | 0 | 0.00% | 0.00% | |
B | 7520 | 7383 | 8 | 8 | 0.11% | 0.11% | |
C | 7520 | 7382 | 8 | 8 | 0.11% | 0.11% | |
D | 7520 | 7383 | 407 | 407 | 5.41% | 5.51% | |
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 | 3938737 | 23354.13 | 806 | 789 | 168.6 |
A | 13 | 248 | 15364 | 86.44 | 806 | 789 | 168.6 |
A | 3 | 137 | 9393 | 51.03 | 806 | 789 | 168.6 |
B | 10 | 7 | 340620 | 2141.79 | 805 | 777 | 158.7 |
B | 0 | 155 | 85208 | 532.11 | 805 | 777 | 158.7 |
B | 0 | 200 | 80459 | 502.18 | 805 | 777 | 158.7 |
C | 14 | 254 | 97265 | 518.45 | 789 | 789 | 186.1 |
C | 12 | 2 | 31091 | 162.84 | 789 | 789 | 186.1 |
C | 1 | 3 | 5844 | 27.17 | 789 | 789 | 186.1 |
D | 12 | 2 | 1450045 | 7495.51 | 778 | 751 | 193.4 |
D | 2 | 37 | 324600 | 1674.89 | 778 | 751 | 193.4 |
D | 12 | 233 | 133954 | 688.9 | 778 | 751 | 193.4 |
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 | |