Observation information
- date-obs: 2024-08-01
- time-obs: 05:41:29.245400000
- date-end: 2024-08-01
- time-end: 07:40:07.235000000
- obs_id: A13_081T01_9000006354
- exposure: 1669.63304371
- 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_47824cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47824cztM0_level2_quad_clean.evt
|
Size (bytes) | 671,474,880 | 84,098,880 |
Size | 640.4 MB
| 80.2 MB
|
Events in quadrant A | 5,949,458 | 647,155 |
Events in quadrant B | 2,941,807 | 674,513 |
Events in quadrant C | 2,783,260 | 632,344 |
Events in quadrant D | 12,714,684 | 172,949 |
Level1 data integrity
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 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22075 | 3 |
B | 0 | 13006 | 1 |
C | 0 | 12985 | 1 |
D | 0 | 41850 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6007 | 205 | 3.412685% |
B | 6007 | 104 | 1.731313% |
C | 6006 | 116 | 1.931402% |
D | 6008 | 4454 | 74.134487% |
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 | 7117 | 6007 | 9 | 9 | 0.13% | 0.15% | |
B | 7117 | 6007 | 11 | 11 | 0.15% | 0.18% | |
C | 7117 | 6008 | 61 | 61 | 0.86% | 1.02% | |
D | 7118 | 6008 | 4267 | 4267 | 59.95% | 71.02% | |
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 | 3370974 | 25127.33 | 653 | 639 | 134.1 |
A | 13 | 248 | 34666 | 253.69 | 653 | 639 | 134.1 |
A | 0 | 31 | 17978 | 129.27 | 653 | 639 | 134.1 |
B | 0 | 200 | 275670 | 2173.29 | 652 | 630 | 126.6 |
B | 12 | 3 | 32770 | 253.96 | 652 | 630 | 126.6 |
B | 12 | 111 | 15932 | 120.91 | 652 | 630 | 126.6 |
C | 12 | 2 | 272266 | 1845.46 | 633 | 637 | 147.2 |
C | 14 | 254 | 29122 | 193.53 | 633 | 637 | 147.2 |
C | 12 | 250 | 10543 | 67.3 | 633 | 637 | 147.2 |
D | 12 | 33 | 10586319 | 112519.81 | 372 | 359 | 94.1 |
D | 12 | 2 | 348222 | 3697.49 | 372 | 359 | 94.1 |
D | 12 | 32 | 153733 | 1630.24 | 372 | 359 | 94.1 |
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 | |