Observation information
- date-obs: 2024-08-01
- time-obs: 10:58:38.220400000
- date-end: 2024-08-01
- time-end: 12:56:20.212600000
- obs_id: A13_081T01_9000006354
- exposure: 6530.09655023
- 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_47827cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47827cztM0_level2_quad_clean.evt
|
Size (bytes) | 586,630,080 | 109,644,480 |
Size | 559.5 MB
| 104.6 MB
|
Events in quadrant A | 7,196,423 | 747,198 |
Events in quadrant B | 3,695,054 | 755,895 |
Events in quadrant C | 3,994,533 | 695,246 |
Events in quadrant D | 6,282,217 | 629,389 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26425 | 1 |
B | 0 | 15988 | 0 |
C | 0 | 17400 | 0 |
D | 0 | 23704 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7061 | 208 | 2.945758% |
B | 7062 | 119 | 1.685075% |
C | 7062 | 328 | 4.644577% |
D | 7062 | 632 | 8.949306% |
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 | 7061 | 7061 | 16 | 16 | 0.23% | 0.23% | |
B | 7062 | 7062 | 56 | 56 | 0.79% | 0.79% | |
C | 7062 | 7062 | 291 | 291 | 4.12% | 4.12% | |
D | 7062 | 7062 | 613 | 613 | 8.68% | 8.68% | |
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 | 3760421 | 23995.96 | 757 | 741 | 156.7 |
A | 0 | 31 | 498217 | 3175.11 | 757 | 741 | 156.7 |
A | 3 | 7 | 8809 | 51.49 | 757 | 741 | 156.7 |
B | 0 | 200 | 308345 | 2090.01 | 749 | 725 | 147.2 |
B | 0 | 186 | 120842 | 816.09 | 749 | 725 | 147.2 |
B | 10 | 7 | 88021 | 593.1 | 749 | 725 | 147.2 |
C | 12 | 2 | 1119783 | 6532.69 | 727 | 730 | 171.3 |
C | 12 | 249 | 15865 | 88.35 | 727 | 730 | 171.3 |
C | 14 | 254 | 15825 | 88.12 | 727 | 730 | 171.3 |
D | 12 | 33 | 1333287 | 7364.12 | 721 | 696 | 181.0 |
D | 12 | 2 | 1289611 | 7122.76 | 721 | 696 | 181.0 |
D | 2 | 249 | 381589 | 2104.88 | 721 | 696 | 181.0 |
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 | |