Observation information
- date-obs: 2024-12-10
- time-obs: 16:21:38.838500000
- date-end: 2024-12-10
- time-end: 21:55:58.775200000
- obs_id: A13_037T01_9000006440
- exposure: 151.745023251
- 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_9000006440_49776cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49776cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,262,752,000 | 138,905,280 |
Size | 3.0 GB
| 132.5 MB
|
Events in quadrant A | 32,707,416 | 926,935 |
Events in quadrant B | 10,892,566 | 1,831,892 |
Events in quadrant C | 30,204,463 | 13,774 |
Events in quadrant D | 45,521,730 | 136,189 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 378 | 0 |
B | 0 | 378 | 0 |
C | 0 | 378 | 0 |
D | 0 | 378 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 110240 | 10 |
B | 0 | 45199 | 3 |
C | 0 | 102933 | 3 |
D | 0 | 148220 | 3 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18814 | 8989 | 47.778250% |
B | 18815 | 581 | 3.087962% |
C | 18815 | 18686 | 99.314377% |
D | 18815 | 17490 | 92.957746% |
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 | 20058 | 18815 | 7896 | 7896 | 39.37% | 41.97% |  |
B | 20060 | 18818 | 235 | 235 | 1.17% | 1.25% |  |
C | 20060 | 18812 | 5192 | 5192 | 25.88% | 27.60% |  |
D | 20060 | 18818 | 15027 | 15027 | 74.91% | 79.85% |  |
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 | 12 | 50 | 5226010 | 12545.09 | 1563 | 1519 | 416.5 |
A | 0 | 98 | 3284714 | 7883.63 | 1563 | 1519 | 416.5 |
A | 8 | 8 | 2373104 | 5694.67 | 1563 | 1519 | 416.5 |
B | 5 | 185 | 417219 | 997.13 | 1989 | 1921 | 416.5 |
B | 4 | 206 | 350149 | 836.1 | 1989 | 1921 | 416.5 |
B | 7 | 0 | 298795 | 712.79 | 1989 | 1921 | 416.5 |
C | 15 | 148 | 5157860 | 36025.29 | 230 | 215 | 143.2 |
C | 15 | 147 | 4880314 | 34086.68 | 230 | 215 | 143.2 |
C | 15 | 197 | 2467565 | 17234.03 | 230 | 215 | 143.2 |
D | 8 | 129 | 14534899 | 45800.04 | 694 | 646 | 317.3 |
D | 15 | 168 | 8182641 | 25782.93 | 694 | 646 | 317.3 |
D | 15 | 142 | 3295531 | 10382.77 | 694 | 646 | 317.3 |
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 |
 |
 |
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 |  |