Observation information
- date-obs: 2023-07-29
- time-obs: 18:38:28.743100000
- date-end: 2023-07-29
- time-end: 20:48:57.738200000
- obs_id: A12_102T01_9000005798
- exposure: 5810.70442611
- 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/AS1A12_102T01_9000005798_42363cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005798_42363cztM0_level2_quad_clean.evt
|
Size (bytes) | 348,768,000 | 98,516,160 |
Size | 332.6 MB
| 94.0 MB
|
Events in quadrant A | 3,108,280 | 656,943 |
Events in quadrant B | 3,163,449 | 652,852 |
Events in quadrant C | 2,695,099 | 652,598 |
Events in quadrant D | 3,471,193 | 597,302 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 18 | 0 |
C | 0 | 18 | 0 |
D | 0 | 18 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13149 | 2 |
B | 0 | 13870 | 2 |
C | 0 | 12143 | 2 |
D | 0 | 14868 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6059 | 11 | 0.181548% |
B | 6059 | 179 | 2.954283% |
C | 6059 | 4 | 0.066017% |
D | 6059 | 144 | 2.376630% |
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 | 7672 | 6060 | 6 | 6 | 0.08% | 0.10% |  |
B | 7672 | 6059 | 126 | 126 | 1.64% | 2.08% |  |
C | 7672 | 6060 | 0 | 0 | 0.00% | 0.00% |  |
D | 7672 | 6060 | 121 | 121 | 1.58% | 2.00% |  |
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 | 589545 | 4608.25 | 626 | 614 | 127.8 |
A | 15 | 235 | 31728 | 243.46 | 626 | 614 | 127.8 |
A | 7 | 3 | 28405 | 217.46 | 626 | 614 | 127.8 |
B | 3 | 112 | 298785 | 2513.88 | 616 | 599 | 118.6 |
B | 5 | 255 | 280472 | 2359.49 | 616 | 599 | 118.6 |
B | 5 | 172 | 101336 | 849.27 | 616 | 599 | 118.6 |
C | 15 | 214 | 252858 | 1728.76 | 624 | 627 | 145.9 |
C | 13 | 61 | 4275 | 25.0 | 624 | 627 | 145.9 |
C | 8 | 79 | 4233 | 24.72 | 624 | 627 | 145.9 |
D | 1 | 52 | 308078 | 2063.63 | 615 | 600 | 149.0 |
D | 12 | 6 | 258660 | 1731.96 | 615 | 600 | 149.0 |
D | 5 | 222 | 143563 | 959.49 | 615 | 600 | 149.0 |
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 |
 |
 |
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 |  |