Observation information
- date-obs: 2022-05-19
- time-obs: 05:08:41.782500000
- date-end: 2022-05-19
- time-end: 07:09:18.777900000
- obs_id: A11_080T01_9000005146
- exposure: 3153.15640378
- 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_35897cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35897cztM0_level2_quad_clean.evt
|
Size (bytes) | 506,039,040 | 80,000,640 |
Size | 482.6 MB
| 76.3 MB
|
Events in quadrant A | 2,766,855 | 536,513 |
Events in quadrant B | 2,871,744 | 537,835 |
Events in quadrant C | 2,990,379 | 513,697 |
Events in quadrant D | 6,341,288 | 467,283 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19 | 0 |
B | 0 | 18 | 0 |
C | 0 | 19 | 0 |
D | 0 | 20 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 107 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11319 | 70 |
B | 0 | 11704 | 104 |
C | 0 | 11950 | 101 |
D | 0 | 22747 | 296 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5256 | 6 | 0.114155% |
B | 5239 | 28 | 0.534453% |
C | 5242 | 86 | 1.640595% |
D | 5218 | 992 | 19.011115% |
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 | 7212 | 5287 | 0 | 0 | 0.00% | 0.00% | |
B | 7212 | 5279 | 17 | 17 | 0.24% | 0.32% | |
C | 7212 | 5276 | 68 | 68 | 0.94% | 1.29% | |
D | 7212 | 5277 | 895 | 895 | 12.41% | 16.96% | |
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 | 163416 | 1208.21 | 669 | 660 | 134.7 |
A | 13 | 254 | 8920 | 61.32 | 669 | 660 | 134.7 |
A | 3 | 137 | 6392 | 42.55 | 669 | 660 | 134.7 |
B | 5 | 172 | 120501 | 957.12 | 654 | 640 | 125.2 |
B | 0 | 213 | 73425 | 581.21 | 654 | 640 | 125.2 |
B | 5 | 255 | 58909 | 465.29 | 654 | 640 | 125.2 |
C | 0 | 10 | 257689 | 1776.05 | 629 | 635 | 144.7 |
C | 15 | 214 | 219521 | 1512.34 | 629 | 635 | 144.7 |
C | 0 | 207 | 57794 | 394.93 | 629 | 635 | 144.7 |
D | 12 | 227 | 1622568 | 11167.43 | 583 | 567 | 145.2 |
D | 10 | 118 | 1321604 | 9095.3 | 583 | 567 | 145.2 |
D | 2 | 250 | 416536 | 2863.94 | 583 | 567 | 145.2 |
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 | |