Observation information
- date-obs: 2022-05-19
- time-obs: 15:00:20.761000000
- date-end: 2022-05-19
- time-end: 17:35:19.756600000
- obs_id: A11_080T01_9000005146
- exposure: 4440.22478549
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_080T01_9000005146_35903cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35903cztM0_level2_quad_clean.evt
|
Size (bytes) | 475,810,560 | 100,728,000 |
Size | 453.8 MB
| 96.1 MB
|
Events in quadrant A | 3,240,040 | 674,316 |
Events in quadrant B | 3,250,999 | 667,455 |
Events in quadrant C | 3,343,834 | 659,191 |
Events in quadrant D | 4,165,039 | 627,758 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 33 | 0 |
C | 0 | 33 | 0 |
D | 0 | 33 | 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 | 13262 | 3 |
B | 0 | 13253 | 2 |
C | 0 | 13235 | 2 |
D | 0 | 16273 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6044 | 10 | 0.165453% |
B | 6044 | 69 | 1.141628% |
C | 6044 | 130 | 2.150893% |
D | 6044 | 224 | 3.706155% |
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 | 9299 | 6046 | 0 | 0 | 0.00% | 0.00% | |
B | 9299 | 6046 | 38 | 38 | 0.41% | 0.63% | |
C | 9299 | 6046 | 83 | 83 | 0.89% | 1.37% | |
D | 9299 | 6046 | 167 | 167 | 1.80% | 2.76% | |
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 | 15 | 169 | 205062 | 1359.64 | 734 | 722 | 150.3 |
A | 10 | 83 | 178500 | 1182.9 | 734 | 722 | 150.3 |
A | 13 | 254 | 10302 | 63.74 | 734 | 722 | 150.3 |
B | 5 | 172 | 175211 | 1262.55 | 723 | 709 | 138.2 |
B | 5 | 255 | 93297 | 669.89 | 723 | 709 | 138.2 |
B | 0 | 213 | 59305 | 423.95 | 723 | 709 | 138.2 |
C | 0 | 10 | 339534 | 2066.44 | 703 | 711 | 164.0 |
C | 15 | 214 | 251372 | 1528.75 | 703 | 711 | 164.0 |
C | 9 | 69 | 5581 | 29.7 | 703 | 711 | 164.0 |
D | 8 | 195 | 336733 | 1941.81 | 701 | 684 | 173.1 |
D | 13 | 249 | 264823 | 1526.29 | 701 | 684 | 173.1 |
D | 2 | 250 | 198927 | 1145.52 | 701 | 684 | 173.1 |
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 | |