Observation information
- date-obs: 2022-05-15
- time-obs: 20:37:20.953200000
- date-end: 2022-05-15
- time-end: 23:03:52.949600000
- obs_id: A11_080T01_9000005146
- exposure: 4390.81988794
- 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_35847cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35847cztM0_level2_quad_clean.evt
|
Size (bytes) | 448,418,880 | 96,240,960 |
Size | 427.6 MB
| 91.8 MB
|
Events in quadrant A | 3,016,515 | 634,571 |
Events in quadrant B | 3,270,652 | 630,660 |
Events in quadrant C | 3,291,784 | 621,774 |
Events in quadrant D | 3,580,487 | 595,088 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26 | 0 |
B | 0 | 26 | 0 |
C | 0 | 26 | 0 |
D | 0 | 26 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12813 | 3 |
B | 0 | 13664 | 2 |
C | 0 | 13359 | 2 |
D | 0 | 14668 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6196 | 9 | 0.145255% |
B | 6196 | 52 | 0.839251% |
C | 6196 | 76 | 1.226598% |
D | 6196 | 88 | 1.420271% |
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 | 8792 | 6198 | 0 | 0 | 0.00% | 0.00% | |
B | 8792 | 6198 | 20 | 20 | 0.23% | 0.32% | |
C | 8792 | 6198 | 63 | 63 | 0.72% | 1.02% | |
D | 8792 | 6198 | 72 | 72 | 0.82% | 1.16% | |
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 | 169398 | 1129.6 | 734 | 721 | 149.3 |
A | 13 | 254 | 9825 | 60.97 | 734 | 721 | 149.3 |
A | 13 | 6 | 8078 | 49.27 | 734 | 721 | 149.3 |
B | 5 | 172 | 144947 | 1030.14 | 726 | 710 | 140.0 |
B | 4 | 232 | 101436 | 719.39 | 726 | 710 | 140.0 |
B | 0 | 213 | 90923 | 644.3 | 726 | 710 | 140.0 |
C | 15 | 214 | 257083 | 1557.21 | 707 | 714 | 164.6 |
C | 0 | 10 | 203422 | 1231.27 | 707 | 714 | 164.6 |
C | 15 | 208 | 58356 | 350.12 | 707 | 714 | 164.6 |
D | 7 | 223 | 245547 | 1416.69 | 706 | 689 | 172.8 |
D | 13 | 249 | 236940 | 1366.89 | 706 | 689 | 172.8 |
D | 8 | 195 | 116905 | 672.4 | 706 | 689 | 172.8 |
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 | |