Observation information
- date-obs: 2023-01-04
- time-obs: 23:33:35.681700000
- date-end: 2023-01-05
- time-end: 00:53:35.681700000
- obs_id: A12_102T01_9000005466
- exposure: 3438.28211647
- 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_9000005466_39314cztM0_level2.fits
| modeM0/AS1A12_102T01_9000005466_39314cztM0_level2_quad_clean.evt
|
Size (bytes) | 367,752,960 | 71,565,120 |
Size | 350.7 MB
| 68.2 MB
|
Events in quadrant A | 2,302,168 | 502,506 |
Events in quadrant B | 2,371,393 | 506,751 |
Events in quadrant C | 2,207,900 | 492,290 |
Events in quadrant D | 6,389,726 | 356,735 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4 | 0 |
B | 0 | 4 | 0 |
C | 0 | 4 | 0 |
D | 0 | 5 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9561 | 1 |
B | 0 | 10096 | 1 |
C | 0 | 9362 | 1 |
D | 0 | 22047 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 90 | 0 |
B | 0 | 90 | 0 |
C | 0 | 90 | 0 |
D | 0 | 90 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4387 | 14 | 0.319125% |
B | 4387 | 123 | 2.803738% |
C | 4387 | 37 | 0.843401% |
D | 4387 | 1232 | 28.082972% |
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 | 4387 | 4387 | 6 | 6 | 0.14% | 0.14% |  |
B | 4387 | 4387 | 108 | 108 | 2.46% | 2.46% |  |
C | 4387 | 4387 | 31 | 31 | 0.71% | 0.71% |  |
D | 4386 | 4386 | 1059 | 1059 | 24.15% | 24.15% |  |
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 | 287693 | 2908.47 | 481 | 470 | 98.8 |
A | 13 | 248 | 92248 | 929.36 | 481 | 470 | 98.8 |
A | 15 | 222 | 37926 | 379.29 | 481 | 470 | 98.8 |
B | 5 | 172 | 487400 | 5327.72 | 475 | 463 | 91.4 |
B | 12 | 111 | 11527 | 121.05 | 475 | 463 | 91.4 |
B | 11 | 111 | 10481 | 109.61 | 475 | 463 | 91.4 |
C | 15 | 214 | 193854 | 1771.03 | 468 | 471 | 109.2 |
C | 14 | 254 | 143780 | 1312.44 | 468 | 471 | 109.2 |
C | 9 | 187 | 35385 | 319.75 | 468 | 471 | 109.2 |
D | 12 | 235 | 3854829 | 38385.15 | 412 | 399 | 100.4 |
D | 12 | 227 | 395086 | 3930.57 | 412 | 399 | 100.4 |
D | 13 | 249 | 379893 | 3779.27 | 412 | 399 | 100.4 |
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 |
 |
 |
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 |  |