Observation information
- date-obs: 2024-09-18
- time-obs: 19:33:59.827600000
- date-end: 2024-09-18
- time-end: 21:45:58.821600000
- obs_id: A13_037T01_9000006436
- exposure: 6375.75196403
- 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_48544cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48544cztM0_level2_quad_clean.evt
|
Size (bytes) | 456,468,480 | 104,325,120 |
Size | 435.3 MB
| 99.5 MB
|
Events in quadrant A | 6,868,955 | 671,357 |
Events in quadrant B | 2,949,120 | 718,824 |
Events in quadrant C | 2,738,810 | 691,378 |
Events in quadrant D | 3,819,150 | 609,085 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24720 | 48 |
B | 0 | 13963 | 6 |
C | 0 | 13589 | 8 |
D | 0 | 16502 | 5 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 1 |
D | 0 | 12 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6705 | 281 | 4.190902% |
B | 6710 | 45 | 0.670641% |
C | 6709 | 9 | 0.134148% |
D | 6711 | 229 | 3.412308% |
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 | 7687 | 6713 | 134 | 134 | 1.74% | 2.00% | |
B | 7687 | 6713 | 10 | 10 | 0.13% | 0.15% | |
C | 7687 | 6713 | 0 | 0 | 0.00% | 0.00% | |
D | 7687 | 6713 | 190 | 190 | 2.47% | 2.83% | |
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 | 4120567 | 28827.87 | 690 | 677 | 142.9 |
A | 7 | 3 | 34593 | 237.32 | 690 | 677 | 142.9 |
A | 13 | 248 | 19407 | 131.06 | 690 | 677 | 142.9 |
B | 5 | 171 | 64018 | 458.92 | 700 | 679 | 138.0 |
B | 5 | 255 | 54276 | 388.34 | 700 | 679 | 138.0 |
B | 0 | 183 | 20081 | 140.58 | 700 | 679 | 138.0 |
C | 12 | 250 | 13969 | 80.8 | 698 | 701 | 164.2 |
C | 13 | 61 | 4700 | 24.35 | 698 | 701 | 164.2 |
C | 12 | 249 | 3073 | 14.45 | 698 | 701 | 164.2 |
D | 2 | 165 | 875946 | 5058.75 | 683 | 660 | 173.0 |
D | 2 | 249 | 176748 | 1017.71 | 683 | 660 | 173.0 |
D | 7 | 96 | 58616 | 334.96 | 683 | 660 | 173.0 |
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 | |