Observation information
- date-obs: 2024-09-23
- time-obs: 03:42:19.512100000
- date-end: 2024-09-23
- time-end: 05:58:29.505800000
- obs_id: A13_037T01_9000006436
- exposure: 6585.11151862
- 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_48609cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48609cztM0_level2_quad_clean.evt
|
Size (bytes) | 478,846,080 | 109,183,680 |
Size | 456.7 MB
| 104.1 MB
|
Events in quadrant A | 7,509,246 | 690,419 |
Events in quadrant B | 3,532,433 | 742,288 |
Events in quadrant C | 3,015,676 | 727,711 |
Events in quadrant D | 3,121,561 | 655,893 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27211 | 2 |
B | 0 | 15672 | 2 |
C | 0 | 14514 | 2 |
D | 0 | 14858 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7038 | 443 | 6.294402% |
B | 7038 | 233 | 3.310600% |
C | 7038 | 48 | 0.682012% |
D | 7038 | 37 | 0.525718% |
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 | 7663 | 7039 | 149 | 149 | 1.94% | 2.12% | |
B | 7663 | 7039 | 66 | 66 | 0.86% | 0.94% | |
C | 7663 | 7039 | 3 | 3 | 0.04% | 0.04% | |
D | 7663 | 7039 | 4 | 4 | 0.05% | 0.06% | |
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 | 4102025 | 25962.58 | 747 | 729 | 158.0 |
A | 13 | 248 | 502903 | 3178.93 | 747 | 729 | 158.0 |
A | 13 | 254 | 12573 | 74.98 | 747 | 729 | 158.0 |
B | 12 | 16 | 460356 | 3020.63 | 760 | 734 | 152.2 |
B | 0 | 183 | 34163 | 219.69 | 760 | 734 | 152.2 |
B | 12 | 111 | 19728 | 124.83 | 760 | 734 | 152.2 |
C | 12 | 250 | 54987 | 303.49 | 755 | 759 | 178.7 |
C | 14 | 67 | 9625 | 49.62 | 755 | 759 | 178.7 |
C | 14 | 254 | 8883 | 45.47 | 755 | 759 | 178.7 |
D | 2 | 165 | 108311 | 576.18 | 745 | 721 | 186.7 |
D | 10 | 199 | 65149 | 345.04 | 745 | 721 | 186.7 |
D | 2 | 234 | 32339 | 169.33 | 745 | 721 | 186.7 |
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 | |