Observation information
- date-obs: 2024-05-17
- time-obs: 18:24:44.431000000
- date-end: 2024-05-17
- time-end: 20:24:42.424600000
- obs_id: A13_037T01_9000006256
- exposure: 5724.73895735
- 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_9000006256_46705cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46705cztM0_level2_quad_clean.evt
|
Size (bytes) | 428,938,560 | 102,015,360 |
Size | 409.1 MB
| 97.3 MB
|
Events in quadrant A | 6,038,378 | 670,841 |
Events in quadrant B | 3,163,079 | 706,322 |
Events in quadrant C | 2,790,969 | 673,060 |
Events in quadrant D | 3,419,840 | 619,757 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21888 | 1 |
B | 0 | 13591 | 1 |
C | 0 | 12502 | 1 |
D | 0 | 14349 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5998 | 229 | 3.817939% |
B | 5998 | 71 | 1.183728% |
C | 5999 | 35 | 0.583431% |
D | 5999 | 77 | 1.283547% |
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 | 7198 | 5999 | 68 | 68 | 0.94% | 1.13% | |
B | 7198 | 5999 | 8 | 8 | 0.11% | 0.13% | |
C | 7199 | 6000 | 3 | 3 | 0.04% | 0.05% | |
D | 7199 | 5999 | 34 | 34 | 0.47% | 0.57% | |
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 | 3235123 | 22792.31 | 683 | 669 | 141.9 |
A | 15 | 254 | 70978 | 495.45 | 683 | 669 | 141.9 |
A | 9 | 191 | 45186 | 313.7 | 683 | 669 | 141.9 |
B | 4 | 171 | 180724 | 1328.58 | 691 | 672 | 135.5 |
B | 0 | 190 | 56069 | 408.77 | 691 | 672 | 135.5 |
B | 0 | 198 | 37728 | 273.43 | 691 | 672 | 135.5 |
C | 14 | 254 | 96501 | 594.2 | 682 | 685 | 161.3 |
C | 12 | 249 | 6543 | 36.33 | 682 | 685 | 161.3 |
C | 1 | 3 | 5832 | 31.92 | 682 | 685 | 161.3 |
D | 1 | 52 | 430806 | 2500.23 | 681 | 660 | 172.0 |
D | 13 | 249 | 78953 | 455.08 | 681 | 660 | 172.0 |
D | 5 | 171 | 39069 | 223.25 | 681 | 660 | 172.0 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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|
Quadrant B |
Quadrant D |
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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 |
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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 | |