Observation information
- date-obs: 2024-09-15
- time-obs: 03:01:04.910900000
- date-end: 2024-09-15
- time-end: 05:08:52.080000000
- obs_id: A13_081T01_9000006428
- exposure: 6263.07553357
- 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_48490cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48490cztM0_level2_quad_clean.evt
|
Size (bytes) | 427,953,600 | 105,710,400 |
Size | 408.1 MB
| 100.8 MB
|
Events in quadrant A | 6,697,117 | 696,069 |
Events in quadrant B | 3,044,932 | 729,584 |
Events in quadrant C | 2,683,599 | 691,950 |
Events in quadrant D | 2,912,208 | 631,207 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24536 | 1 |
B | 0 | 13835 | 1 |
C | 0 | 13077 | 1 |
D | 0 | 13757 | 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 | 6483 | 153 | 2.360019% |
B | 6484 | 83 | 1.280074% |
C | 6484 | 4 | 0.061690% |
D | 6483 | 19 | 0.293074% |
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 | 7668 | 6483 | 37 | 37 | 0.48% | 0.57% | |
B | 7669 | 6484 | 42 | 42 | 0.55% | 0.65% | |
C | 7669 | 6485 | 0 | 0 | 0.00% | 0.00% | |
D | 7668 | 6484 | 20 | 20 | 0.26% | 0.31% | |
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 | 3948813 | 27238.21 | 690 | 674 | 144.9 |
A | 12 | 189 | 66224 | 452.23 | 690 | 674 | 144.9 |
A | 13 | 254 | 11588 | 75.3 | 690 | 674 | 144.9 |
B | 12 | 16 | 226783 | 1675.0 | 692 | 671 | 135.0 |
B | 5 | 255 | 50251 | 367.28 | 692 | 671 | 135.0 |
B | 8 | 234 | 22160 | 159.19 | 692 | 671 | 135.0 |
C | 3 | 233 | 26221 | 160.21 | 680 | 684 | 159.4 |
C | 12 | 249 | 4897 | 26.43 | 680 | 684 | 159.4 |
C | 13 | 61 | 4567 | 24.36 | 680 | 684 | 159.4 |
D | 2 | 249 | 151397 | 903.2 | 673 | 650 | 166.9 |
D | 5 | 171 | 45865 | 270.9 | 673 | 650 | 166.9 |
D | 2 | 120 | 40208 | 237.01 | 673 | 650 | 166.9 |
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 | |