Observation information
- date-obs: 2024-12-16
- time-obs: 04:20:50.322300000
- date-end: 2024-12-16
- time-end: 06:22:01.300400000
- obs_id: A13_037T01_9000006440
- exposure: 881.562545955
- 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_49856cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49856cztM0_level2_quad_clean.evt
|
Size (bytes) | 920,635,200 | 60,215,040 |
Size | 878.0 MB
| 57.4 MB
|
Events in quadrant A | 6,276,611 | 581,746 |
Events in quadrant B | 3,674,400 | 663,779 |
Events in quadrant C | 11,235,744 | 52,897 |
Events in quadrant D | 12,405,863 | 82,059 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22978 | 0 |
B | 0 | 15247 | 0 |
C | 0 | 37730 | 0 |
D | 0 | 41176 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6246 | 759 | 12.151777% |
B | 6246 | 278 | 4.450849% |
C | 6246 | 6246 | 100.000000% |
D | 6247 | 6245 | 99.967985% |
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 | 7271 | 6246 | 567 | 567 | 7.80% | 9.08% |  |
B | 7271 | 6246 | 96 | 96 | 1.32% | 1.54% |  |
C | 7270 | 6245 | 2192 | 2192 | 30.15% | 35.10% |  |
D | 7271 | 6246 | 2731 | 2731 | 37.56% | 43.72% |  |
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 | 3 | 84 | 1849868 | 11289.82 | 666 | 649 | 163.8 |
A | 4 | 4 | 306251 | 1865.76 | 666 | 649 | 163.8 |
A | 8 | 38 | 258858 | 1576.41 | 666 | 649 | 163.8 |
B | 4 | 206 | 437822 | 3021.83 | 686 | 665 | 144.7 |
B | 4 | 190 | 143387 | 986.56 | 686 | 665 | 144.7 |
B | 10 | 28 | 125419 | 862.36 | 686 | 665 | 144.7 |
C | 15 | 230 | 3274389 | 85003.04 | 75 | 72 | 38.5 |
C | 15 | 189 | 2122893 | 55109.58 | 75 | 72 | 38.5 |
C | 4 | 111 | 1426569 | 37032.63 | 75 | 72 | 38.5 |
D | 7 | 61 | 6524837 | 152507.98 | 115 | 108 | 42.8 |
D | 8 | 129 | 2198853 | 51393.12 | 115 | 108 | 42.8 |
D | 15 | 185 | 894007 | 20893.85 | 115 | 108 | 42.8 |
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 |  |