Observation information
- date-obs: 2022-05-18
- time-obs: 04:52:43.833800000
- date-end: 2022-05-18
- time-end: 10:14:56.818300000
- obs_id: A11_080T01_9000005146
- exposure: 6353.46980841
- 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_35884cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35884cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,399,700,160 | 169,355,520 |
Size | 1.3 GB
| 161.5 MB
|
Events in quadrant A | 7,248,398 | 1,134,540 |
Events in quadrant B | 16,329,184 | 941,026 |
Events in quadrant C | 8,360,421 | 1,094,918 |
Events in quadrant D | 9,546,784 | 1,029,244 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 59 | 0 |
B | 0 | 59 | 0 |
C | 0 | 59 | 0 |
D | 0 | 59 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 274 | 0 |
B | 0 | 274 | 0 |
C | 0 | 274 | 0 |
D | 0 | 274 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29147 | 4 |
B | 0 | 57252 | 3 |
C | 0 | 32795 | 5 |
D | 0 | 37150 | 3 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 13445 | 14 | 0.104128% |
B | 13445 | 3853 | 28.657493% |
C | 13444 | 349 | 2.595954% |
D | 13445 | 565 | 4.202306% |
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 | 19333 | 13448 | 2 | 2 | 0.01% | 0.01% | |
B | 19333 | 13448 | 3462 | 3462 | 17.91% | 25.74% | |
C | 19333 | 13448 | 304 | 304 | 1.57% | 2.26% | |
D | 19333 | 13448 | 439 | 439 | 2.27% | 3.26% | |
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 | 330676 | 945.72 | 1747 | 1724 | 347.8 |
A | 15 | 169 | 124286 | 352.36 | 1747 | 1724 | 347.8 |
A | 8 | 144 | 32746 | 89.19 | 1747 | 1724 | 347.8 |
B | 5 | 63 | 8828893 | 32582.24 | 1448 | 1417 | 270.9 |
B | 5 | 172 | 1146191 | 4225.36 | 1448 | 1417 | 270.9 |
B | 5 | 255 | 434158 | 1597.25 | 1448 | 1417 | 270.9 |
C | 1 | 23 | 879787 | 2332.34 | 1641 | 1658 | 376.5 |
C | 15 | 214 | 549782 | 1455.84 | 1641 | 1658 | 376.5 |
C | 0 | 207 | 281593 | 743.52 | 1641 | 1658 | 376.5 |
D | 13 | 249 | 543863 | 1339.26 | 1655 | 1616 | 404.9 |
D | 1 | 52 | 506693 | 1247.45 | 1655 | 1616 | 404.9 |
D | 2 | 249 | 485262 | 1194.52 | 1655 | 1616 | 404.9 |
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 | |