Observation information
- date-obs: 2024-09-15
- time-obs: 04:42:20.824700000
- date-end: 2024-09-15
- time-end: 06:51:37.071700000
- obs_id: A13_081T01_9000006428
- exposure: 6212.89679533
- 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_48491cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48491cztM0_level2_quad_clean.evt
|
Size (bytes) | 455,592,960 | 106,107,840 |
Size | 434.5 MB
| 101.2 MB
|
Events in quadrant A | 6,924,070 | 686,292 |
Events in quadrant B | 3,256,574 | 729,735 |
Events in quadrant C | 2,793,874 | 699,355 |
Events in quadrant D | 3,376,569 | 636,304 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25617 | 2 |
B | 0 | 14562 | 2 |
C | 0 | 13503 | 2 |
D | 0 | 15116 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6608 | 334 | 5.054479% |
B | 6608 | 195 | 2.950969% |
C | 6608 | 70 | 1.059322% |
D | 6608 | 129 | 1.952179% |
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 | 7663 | 6608 | 46 | 46 | 0.60% | 0.70% | |
B | 7663 | 6608 | 67 | 67 | 0.87% | 1.01% | |
C | 7663 | 6608 | 0 | 0 | 0.00% | 0.00% | |
D | 7663 | 6608 | 58 | 58 | 0.76% | 0.88% | |
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 | 4102068 | 27652.54 | 709 | 694 | 148.3 |
A | 12 | 189 | 42530 | 282.07 | 709 | 694 | 148.3 |
A | 7 | 3 | 36442 | 241.02 | 709 | 694 | 148.3 |
B | 12 | 16 | 383058 | 2732.09 | 717 | 694 | 140.0 |
B | 5 | 255 | 31960 | 223.4 | 717 | 694 | 140.0 |
B | 12 | 111 | 17768 | 122.0 | 717 | 694 | 140.0 |
C | 3 | 233 | 28325 | 167.89 | 705 | 707 | 164.5 |
C | 1 | 3 | 7484 | 41.2 | 705 | 707 | 164.5 |
C | 14 | 67 | 6613 | 35.9 | 705 | 707 | 164.5 |
D | 2 | 249 | 397272 | 2286.93 | 698 | 674 | 173.4 |
D | 7 | 38 | 161944 | 929.94 | 698 | 674 | 173.4 |
D | 2 | 120 | 37630 | 213.1 | 698 | 674 | 173.4 |
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 |
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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 |
|
|
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 | |