Observation information
- date-obs: 2023-11-18
- time-obs: 04:24:19.758700000
- date-end: 2023-11-18
- time-end: 06:33:15.754400000
- obs_id: A13_037T01_9000005930
- exposure: 6487.13298124
- 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_9000005930_44013cztM0_level2.fits
| modeM0/AS1A13_037T01_9000005930_44013cztM0_level2_quad_clean.evt
|
Size (bytes) | 470,462,400 | 112,930,560 |
Size | 448.7 MB
| 107.7 MB
|
Events in quadrant A | 5,475,077 | 713,630 |
Events in quadrant B | 3,388,461 | 784,214 |
Events in quadrant C | 3,346,468 | 759,040 |
Events in quadrant D | 4,657,794 | 672,158 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 144 | 0 |
B | 0 | 144 | 0 |
C | 0 | 144 | 0 |
D | 0 | 144 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21065 | 3 |
B | 0 | 14862 | 4 |
C | 0 | 14905 | 3 |
D | 0 | 18687 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6 | 0 |
B | 0 | 7 | 0 |
C | 0 | 7 | 0 |
D | 0 | 7 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7040 | 524 | 7.443182% |
B | 7039 | 175 | 2.486149% |
C | 7039 | 116 | 1.647961% |
D | 7039 | 293 | 4.162523% |
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 | 7695 | 7042 | 258 | 258 | 3.35% | 3.66% |  |
B | 7694 | 7041 | 7 | 7 | 0.09% | 0.10% |  |
C | 7694 | 7041 | 11 | 11 | 0.14% | 0.16% |  |
D | 7694 | 7041 | 173 | 173 | 2.25% | 2.46% |  |
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 | 1255552 | 7657.51 | 785 | 767 | 163.9 |
A | 14 | 238 | 1084217 | 6611.91 | 785 | 767 | 163.9 |
A | 15 | 223 | 69958 | 422.25 | 785 | 767 | 163.9 |
B | 0 | 213 | 48804 | 300.65 | 806 | 781 | 159.7 |
B | 4 | 171 | 40263 | 247.18 | 806 | 781 | 159.7 |
B | 3 | 112 | 35096 | 214.83 | 806 | 781 | 159.7 |
C | 14 | 254 | 112332 | 594.83 | 796 | 801 | 187.5 |
C | 3 | 233 | 98820 | 522.77 | 796 | 801 | 187.5 |
C | 2 | 14 | 27612 | 142.99 | 796 | 801 | 187.5 |
D | 1 | 52 | 1078412 | 5517.5 | 775 | 749 | 195.3 |
D | 7 | 80 | 170664 | 869.94 | 775 | 749 | 195.3 |
D | 5 | 235 | 77173 | 391.28 | 775 | 749 | 195.3 |
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 |  |