Observation information
- date-obs: 2024-09-22
- time-obs: 10:27:45.565200000
- date-end: 2024-09-22
- time-end: 16:08:15.548500000
- obs_id: A13_037T01_9000006436
- exposure: 17138.8842067
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000006436_48600cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48600cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,501,156,800 | 290,007,360 |
Size | 1.4 GB
| 276.6 MB
|
Events in quadrant A | 19,204,740 | 1,930,971 |
Events in quadrant B | 16,828,022 | 1,806,670 |
Events in quadrant C | 8,239,254 | 1,958,814 |
Events in quadrant D | 9,784,900 | 1,736,141 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 71644 | 2 |
B | 0 | 63577 | 2 |
C | 0 | 40078 | 2 |
D | 0 | 44514 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 396 | 0 |
B | 0 | 396 | 0 |
C | 0 | 396 | 0 |
D | 0 | 396 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 19555 | 741 | 3.789312% |
B | 19555 | 2744 | 14.032217% |
C | 19556 | 222 | 1.135201% |
D | 19556 | 590 | 3.016977% |
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 | 20430 | 19557 | 24 | 24 | 0.12% | 0.12% | |
B | 20430 | 19557 | 1777 | 1777 | 8.70% | 9.09% | |
C | 20431 | 19558 | 6 | 6 | 0.03% | 0.03% | |
D | 20431 | 19558 | 247 | 247 | 1.21% | 1.26% | |
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 | 10851468 | 24701.67 | 2107 | 2061 | 439.2 |
A | 13 | 248 | 185972 | 418.72 | 2107 | 2061 | 439.2 |
A | 13 | 254 | 36250 | 77.84 | 2107 | 2061 | 439.2 |
B | 12 | 16 | 8608283 | 21716.49 | 2018 | 1948 | 396.3 |
B | 0 | 186 | 95590 | 236.29 | 2018 | 1948 | 396.3 |
B | 12 | 111 | 51694 | 125.52 | 2018 | 1948 | 396.3 |
C | 12 | 250 | 40907 | 78.61 | 2094 | 2098 | 493.7 |
C | 12 | 249 | 27219 | 50.88 | 2094 | 2098 | 493.7 |
C | 13 | 61 | 13907 | 23.92 | 2094 | 2098 | 493.7 |
D | 2 | 249 | 758001 | 1452.12 | 2069 | 2000 | 520.6 |
D | 2 | 165 | 532803 | 1019.56 | 2069 | 2000 | 520.6 |
D | 10 | 199 | 267033 | 509.07 | 2069 | 2000 | 520.6 |
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 |
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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 | |