Observation information
- date-obs: 2024-09-19
- time-obs: 13:07:39.774900000
- date-end: 2024-09-19
- time-end: 18:38:12.758500000
- obs_id: A13_037T01_9000006436
- exposure: 16387.0732129
- 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_48557cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48557cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,254,790,080 | 265,392,000 |
Size | 1.2 GB
| 253.1 MB
|
Events in quadrant A | 17,603,493 | 1,758,949 |
Events in quadrant B | 11,090,289 | 1,736,120 |
Events in quadrant C | 7,419,674 | 1,772,447 |
Events in quadrant D | 8,957,218 | 1,539,597 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 68461 | 3077 |
B | 0 | 47436 | 1275 |
C | 0 | 37668 | 1177 |
D | 0 | 43094 | 2453 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 1 |
B | 0 | 14 | 1 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 374 | 10 |
B | 0 | 373 | 9 |
C | 0 | 374 | 10 |
D | 0 | 373 | 15 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17746 | 621 | 3.499380% |
B | 17853 | 1342 | 7.516944% |
C | 17867 | 153 | 0.856327% |
D | 17765 | 624 | 3.512525% |
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 | 19798 | 17886 | 37 | 37 | 0.19% | 0.21% | |
B | 19788 | 17976 | 884 | 884 | 4.47% | 4.92% | |
C | 19802 | 18017 | 0 | 0 | 0.00% | 0.00% | |
D | 19797 | 17887 | 373 | 373 | 1.88% | 2.09% | |
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 | 9967664 | 25338.22 | 1881 | 1840 | 393.3 |
A | 12 | 189 | 161947 | 407.07 | 1881 | 1840 | 393.3 |
A | 7 | 3 | 112901 | 282.37 | 1881 | 1840 | 393.3 |
B | 12 | 16 | 3445792 | 9525.5 | 1851 | 1790 | 361.6 |
B | 5 | 255 | 140307 | 383.11 | 1851 | 1790 | 361.6 |
B | 12 | 18 | 136389 | 372.28 | 1851 | 1790 | 361.6 |
C | 12 | 250 | 31781 | 67.3 | 1891 | 1899 | 444.0 |
C | 14 | 254 | 14115 | 27.51 | 1891 | 1899 | 444.0 |
C | 13 | 61 | 12528 | 23.94 | 1891 | 1899 | 444.0 |
D | 2 | 165 | 910841 | 1972.31 | 1852 | 1798 | 460.9 |
D | 2 | 249 | 579025 | 1252.38 | 1852 | 1798 | 460.9 |
D | 12 | 233 | 162496 | 348.66 | 1852 | 1798 | 460.9 |
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 |
|
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Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
|
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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 | |