Observation information
- date-obs: 2024-12-12
- time-obs: 04:54:25.413600000
- date-end: 2024-12-12
- time-end: 06:51:52.391100000
- obs_id: A13_037T01_9000006440
- exposure: 14.3281340599
- 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_49797cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49797cztM0_level2_quad_clean.evt
|
Size (bytes) | 871,220,160 | 51,802,560 |
Size | 830.9 MB
| 49.4 MB
|
Events in quadrant A | 6,550,231 | 507,876 |
Events in quadrant B | 3,680,865 | 630,846 |
Events in quadrant C | 8,247,731 | 16,380 |
Events in quadrant D | 13,311,533 | 1,520 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 118 | 0 |
B | 0 | 118 | 0 |
C | 0 | 118 | 0 |
D | 0 | 118 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23525 | 1 |
B | 0 | 14869 | 1 |
C | 0 | 28657 | 1 |
D | 0 | 43543 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5898 | 986 | 16.717531% |
B | 5898 | 249 | 4.221770% |
C | 5898 | 5766 | 97.761953% |
D | 5898 | 5888 | 99.830451% |
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 | 7048 | 5899 | 781 | 781 | 11.08% | 13.24% |  |
B | 7048 | 5899 | 143 | 143 | 2.03% | 2.42% |  |
C | 7047 | 5897 | 1483 | 1483 | 21.04% | 25.15% |  |
D | 7047 | 5897 | 4715 | 4715 | 66.91% | 79.96% |  |
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 | 15 | 63 | 1182909 | 7739.75 | 622 | 610 | 152.8 |
A | 4 | 249 | 820297 | 5365.97 | 622 | 610 | 152.8 |
A | 15 | 191 | 385600 | 2520.28 | 622 | 610 | 152.8 |
B | 5 | 185 | 591829 | 4158.02 | 658 | 635 | 142.2 |
B | 10 | 28 | 118695 | 830.35 | 658 | 635 | 142.2 |
B | 4 | 206 | 117216 | 819.94 | 658 | 635 | 142.2 |
C | 15 | 147 | 3530689 | 117833.02 | 89 | 87 | 30.0 |
C | 15 | 230 | 1058329 | 35318.58 | 89 | 87 | 30.0 |
C | 15 | 148 | 787751 | 26288.1 | 89 | 87 | 30.0 |
D | 8 | 129 | 3628241 | 83523.92 | 115 | 109 | 43.4 |
D | 7 | 61 | 2448232 | 56358.7 | 115 | 109 | 43.4 |
D | 15 | 184 | 1430447 | 32928.08 | 115 | 109 | 43.4 |
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 |  |