Observation information
- date-obs: 2024-09-14
- time-obs: 06:05:40.189200000
- date-end: 2024-09-14
- time-end: 08:15:51.178000000
- obs_id: A13_081T01_9000006428
- exposure: 6257.56219852
- 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_48477cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48477cztM0_level2_quad_clean.evt
|
Size (bytes) | 463,273,920 | 106,580,160 |
Size | 441.8 MB
| 101.6 MB
|
Events in quadrant A | 6,825,565 | 690,356 |
Events in quadrant B | 3,022,009 | 737,435 |
Events in quadrant C | 2,788,864 | 702,894 |
Events in quadrant D | 3,998,230 | 634,924 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25284 | 3 |
B | 0 | 13958 | 2 |
C | 0 | 13511 | 2 |
D | 0 | 16820 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6622 | 301 | 4.545455% |
B | 6622 | 121 | 1.827243% |
C | 6622 | 45 | 0.679553% |
D | 6622 | 130 | 1.963153% |
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 | 7662 | 6622 | 18 | 18 | 0.23% | 0.27% | |
B | 7662 | 6622 | 10 | 10 | 0.13% | 0.15% | |
C | 7662 | 6623 | 0 | 0 | 0.00% | 0.00% | |
D | 7662 | 6623 | 76 | 76 | 0.99% | 1.15% | |
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 | 4074840 | 27712.75 | 710 | 694 | 147.0 |
A | 13 | 254 | 12216 | 78.37 | 710 | 694 | 147.0 |
A | 3 | 137 | 8085 | 50.27 | 710 | 694 | 147.0 |
B | 8 | 234 | 118183 | 831.48 | 720 | 698 | 141.3 |
B | 12 | 16 | 35746 | 248.05 | 720 | 698 | 141.3 |
B | 12 | 111 | 17980 | 122.31 | 720 | 698 | 141.3 |
C | 12 | 2 | 18112 | 106.03 | 704 | 705 | 164.2 |
C | 14 | 67 | 9884 | 55.91 | 704 | 705 | 164.2 |
C | 3 | 233 | 6023 | 32.39 | 704 | 705 | 164.2 |
D | 2 | 165 | 623072 | 3594.79 | 699 | 675 | 173.1 |
D | 7 | 38 | 313454 | 1806.52 | 699 | 675 | 173.1 |
D | 2 | 249 | 232647 | 1339.8 | 699 | 675 | 173.1 |
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 | |