Observation information
- date-obs: 2024-09-18
- time-obs: 17:48:59.833000000
- date-end: 2024-09-18
- time-end: 20:01:23.825900000
- obs_id: A13_037T01_9000006436
- exposure: 6556.35997528
- 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_48543cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48543cztM0_level2_quad_clean.evt
|
Size (bytes) | 457,963,200 | 107,199,360 |
Size | 436.7 MB
| 102.2 MB
|
Events in quadrant A | 7,118,913 | 687,594 |
Events in quadrant B | 3,110,826 | 732,456 |
Events in quadrant C | 2,845,797 | 706,263 |
Events in quadrant D | 3,340,572 | 638,455 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25664 | 8 |
B | 0 | 14540 | 2 |
C | 0 | 14023 | 2 |
D | 0 | 15356 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 11 | 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 | 6906 | 281 | 4.068926% |
B | 6907 | 57 | 0.825250% |
C | 6907 | 18 | 0.260605% |
D | 6907 | 96 | 1.389894% |
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 | 7752 | 6908 | 73 | 73 | 0.94% | 1.06% | |
B | 7752 | 6908 | 9 | 9 | 0.12% | 0.13% | |
C | 7752 | 6908 | 0 | 0 | 0.00% | 0.00% | |
D | 7752 | 6908 | 57 | 57 | 0.74% | 0.83% | |
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 | 4203308 | 27935.28 | 720 | 704 | 150.4 |
A | 12 | 189 | 67477 | 443.85 | 720 | 704 | 150.4 |
A | 13 | 248 | 54050 | 354.6 | 720 | 704 | 150.4 |
B | 5 | 171 | 71692 | 494.78 | 728 | 703 | 143.5 |
B | 5 | 255 | 55685 | 383.22 | 728 | 703 | 143.5 |
B | 0 | 155 | 32710 | 223.08 | 728 | 703 | 143.5 |
C | 12 | 250 | 8627 | 45.94 | 726 | 729 | 171.9 |
C | 13 | 61 | 4865 | 24.06 | 726 | 729 | 171.9 |
C | 12 | 249 | 3406 | 15.57 | 726 | 729 | 171.9 |
D | 2 | 165 | 290689 | 1616.83 | 718 | 696 | 179.4 |
D | 12 | 233 | 164592 | 913.79 | 718 | 696 | 179.4 |
D | 2 | 249 | 81691 | 451.58 | 718 | 696 | 179.4 |
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 | |