Observation information
- date-obs: 2023-04-22
- time-obs: 04:10:04.532300000
- date-end: 2023-04-22
- time-end: 06:10:51.528100000
- obs_id: A12_102T01_9000005576
- exposure: 5765.66498339
- 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_9000005576_40901cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005576_40901cztM0_level2_quad_clean.evt
|
Size (bytes) | 345,548,160 | 94,530,240 |
Size | 329.5 MB
| 90.2 MB
|
Events in quadrant A | 3,099,860 | 628,138 |
Events in quadrant B | 3,030,746 | 640,780 |
Events in quadrant C | 2,686,710 | 619,175 |
Events in quadrant D | 3,511,646 | 559,190 |
Level1 data integrity
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 | 12710 | 3 |
B | 0 | 13218 | 2 |
C | 0 | 11987 | 2 |
D | 0 | 14695 | 12 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5934 | 4 | 0.067408% |
B | 5934 | 93 | 1.567240% |
C | 5934 | 8 | 0.134816% |
D | 5930 | 115 | 1.939292% |
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 | 7247 | 5935 | 3 | 3 | 0.04% | 0.05% |  |
B | 7247 | 5935 | 58 | 58 | 0.80% | 0.98% |  |
C | 7247 | 5935 | 3 | 3 | 0.04% | 0.05% |  |
D | 7247 | 5933 | 112 | 112 | 1.55% | 1.89% |  |
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 | 557231 | 4285.19 | 631 | 618 | 129.9 |
A | 2 | 79 | 70024 | 534.34 | 631 | 618 | 129.9 |
A | 12 | 189 | 15252 | 112.66 | 631 | 618 | 129.9 |
B | 4 | 171 | 249423 | 2018.2 | 627 | 609 | 123.3 |
B | 5 | 255 | 213207 | 1724.44 | 627 | 609 | 123.3 |
B | 0 | 190 | 47078 | 376.92 | 627 | 609 | 123.3 |
C | 15 | 214 | 251267 | 1733.18 | 617 | 620 | 144.6 |
C | 3 | 233 | 11832 | 77.53 | 617 | 620 | 144.6 |
C | 0 | 10 | 11041 | 72.06 | 617 | 620 | 144.6 |
D | 12 | 128 | 376215 | 2525.95 | 610 | 593 | 148.7 |
D | 12 | 233 | 267264 | 1793.28 | 610 | 593 | 148.7 |
D | 12 | 79 | 109928 | 735.25 | 610 | 593 | 148.7 |
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 |  |