Observation information
- date-obs: 2024-07-31
- time-obs: 20:53:09.291400000
- date-end: 2024-07-31
- time-end: 23:00:58.280500000
- obs_id: A13_081T01_9000006354
- exposure: 5893.05399877
- 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_47818cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47818cztM0_level2_quad_clean.evt
|
Size (bytes) | 518,440,320 | 106,076,160 |
Size | 494.4 MB
| 101.2 MB
|
Events in quadrant A | 6,914,659 | 729,161 |
Events in quadrant B | 3,286,912 | 734,543 |
Events in quadrant C | 2,801,493 | 708,190 |
Events in quadrant D | 5,662,499 | 567,640 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25008 | 4 |
B | 0 | 14847 | 1 |
C | 0 | 13679 | 1 |
D | 0 | 21821 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6773 | 212 | 3.130075% |
B | 6774 | 62 | 0.915264% |
C | 6774 | 16 | 0.236197% |
D | 6774 | 880 | 12.990847% |
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 | 6774 | 79 | 79 | 1.03% | 1.17% | |
B | 7669 | 6775 | 16 | 16 | 0.21% | 0.24% | |
C | 7669 | 6775 | 2 | 2 | 0.03% | 0.03% | |
D | 7669 | 6774 | 883 | 883 | 11.51% | 13.04% | |
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 | 3860582 | 25930.22 | 718 | 702 | 148.9 |
A | 14 | 235 | 202838 | 1357.93 | 718 | 702 | 148.9 |
A | 0 | 31 | 34916 | 229.85 | 718 | 702 | 148.9 |
B | 0 | 200 | 328615 | 2329.13 | 716 | 692 | 140.8 |
B | 10 | 7 | 66740 | 469.11 | 716 | 692 | 140.8 |
B | 5 | 255 | 23951 | 165.2 | 716 | 692 | 140.8 |
C | 14 | 254 | 12604 | 70.73 | 711 | 714 | 168.1 |
C | 12 | 2 | 5770 | 30.08 | 711 | 714 | 168.1 |
C | 13 | 61 | 4551 | 22.82 | 711 | 714 | 168.1 |
D | 12 | 2 | 1901138 | 11488.05 | 654 | 632 | 165.4 |
D | 2 | 165 | 934465 | 5644.77 | 654 | 632 | 165.4 |
D | 13 | 29 | 81777 | 490.5 | 654 | 632 | 165.4 |
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 |
|
|
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 | |