Observation information
- date-obs: 2024-08-01
- time-obs: 12:43:41.213700000
- date-end: 2024-08-01
- time-end: 14:38:55.205900000
- obs_id: A13_081T01_9000006354
- exposure: 5813.82990915
- 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_47828cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47828cztM0_level2_quad_clean.evt
|
Size (bytes) | 616,322,880 | 103,705,920 |
Size | 587.8 MB
| 98.9 MB
|
Events in quadrant A | 6,907,383 | 730,690 |
Events in quadrant B | 5,780,779 | 630,704 |
Events in quadrant C | 4,129,236 | 664,952 |
Events in quadrant D | 5,461,507 | 631,935 |
Level1 data integrity
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 | 25504 | 0 |
B | 0 | 22103 | 0 |
C | 0 | 17510 | 0 |
D | 0 | 20997 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6914 | 79 | 1.142609% |
B | 6915 | 1079 | 15.603760% |
C | 6915 | 365 | 5.278380% |
D | 6915 | 296 | 4.280550% |
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 | 6914 | 6914 | 3 | 3 | 0.04% | 0.04% | |
B | 6915 | 6915 | 1005 | 1005 | 14.53% | 14.53% | |
C | 6915 | 6915 | 357 | 357 | 5.16% | 5.16% | |
D | 6915 | 6915 | 319 | 319 | 4.61% | 4.61% | |
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 | 3798496 | 24693.94 | 740 | 727 | 153.8 |
A | 0 | 31 | 202168 | 1309.81 | 740 | 727 | 153.8 |
A | 3 | 7 | 21074 | 132.3 | 740 | 727 | 153.8 |
B | 0 | 186 | 2619191 | 19603.53 | 677 | 655 | 133.6 |
B | 0 | 200 | 370130 | 2766.06 | 677 | 655 | 133.6 |
B | 10 | 7 | 51468 | 380.41 | 677 | 655 | 133.6 |
C | 12 | 2 | 858508 | 5154.75 | 704 | 705 | 166.4 |
C | 14 | 254 | 484881 | 2909.53 | 704 | 705 | 166.4 |
C | 12 | 249 | 20065 | 116.34 | 704 | 705 | 166.4 |
D | 12 | 33 | 1265239 | 6981.18 | 716 | 689 | 181.1 |
D | 12 | 2 | 911436 | 5027.94 | 716 | 689 | 181.1 |
D | 7 | 67 | 161994 | 890.51 | 716 | 689 | 181.1 |
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 | |