Observation information
- date-obs: 2024-09-15
- time-obs: 01:22:15.989500000
- date-end: 2024-09-15
- time-end: 03:27:44.088500000
- obs_id: A13_081T01_9000006428
- exposure: 6080.58186966
- 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_48489cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48489cztM0_level2_quad_clean.evt
|
Size (bytes) | 436,302,720 | 101,450,880 |
Size | 416.1 MB
| 96.8 MB
|
Events in quadrant A | 6,420,945 | 669,941 |
Events in quadrant B | 3,145,402 | 697,525 |
Events in quadrant C | 2,598,158 | 669,816 |
Events in quadrant D | 3,488,789 | 587,735 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23400 | 1 |
B | 0 | 14172 | 1 |
C | 0 | 12911 | 1 |
D | 0 | 15335 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 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 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6398 | 159 | 2.485152% |
B | 6398 | 129 | 2.016255% |
C | 6398 | 7 | 0.109409% |
D | 6398 | 255 | 3.985621% |
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 | 7529 | 6398 | 44 | 44 | 0.58% | 0.69% | |
B | 7529 | 6399 | 83 | 83 | 1.10% | 1.30% | |
C | 7529 | 6399 | 0 | 0 | 0.00% | 0.00% | |
D | 7529 | 6398 | 239 | 239 | 3.17% | 3.74% | |
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 | 3707720 | 26434.17 | 668 | 652 | 140.2 |
A | 12 | 189 | 123670 | 877.21 | 668 | 652 | 140.2 |
A | 13 | 254 | 11420 | 76.78 | 668 | 652 | 140.2 |
B | 0 | 186 | 331085 | 2538.62 | 672 | 652 | 130.2 |
B | 8 | 234 | 110541 | 844.24 | 672 | 652 | 130.2 |
B | 5 | 255 | 30641 | 230.4 | 672 | 652 | 130.2 |
C | 3 | 233 | 14904 | 92.0 | 661 | 666 | 154.8 |
C | 1 | 3 | 4574 | 25.25 | 661 | 666 | 154.8 |
C | 13 | 61 | 4406 | 24.17 | 661 | 666 | 154.8 |
D | 10 | 204 | 481638 | 3044.09 | 635 | 614 | 158.0 |
D | 7 | 55 | 169181 | 1066.75 | 635 | 614 | 158.0 |
D | 2 | 249 | 139135 | 876.61 | 635 | 614 | 158.0 |
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 | |