Observation information
- date-obs: 2024-09-19
- time-obs: 19:52:19.754300000
- date-end: 2024-09-19
- time-end: 22:04:34.747700000
- obs_id: A13_037T01_9000006436
- exposure: 6250.56500888
- 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_48560cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48560cztM0_level2_quad_clean.evt
|
Size (bytes) | 457,375,680 | 104,480,640 |
Size | 436.2 MB
| 99.6 MB
|
Events in quadrant A | 6,937,604 | 671,120 |
Events in quadrant B | 3,625,366 | 700,902 |
Events in quadrant C | 2,733,649 | 697,720 |
Events in quadrant D | 3,120,955 | 632,738 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24960 | 16 |
B | 0 | 15791 | 3 |
C | 0 | 13420 | 2 |
D | 0 | 14432 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 13 | 1 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6605 | 307 | 4.647994% |
B | 6606 | 267 | 4.041780% |
C | 6606 | 17 | 0.257342% |
D | 6606 | 56 | 0.847714% |
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 | 7657 | 6608 | 142 | 142 | 1.85% | 2.15% | |
B | 7656 | 6606 | 112 | 112 | 1.46% | 1.70% | |
C | 7656 | 6607 | 3 | 3 | 0.04% | 0.05% | |
D | 7656 | 6607 | 33 | 33 | 0.43% | 0.50% | |
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 | 4133206 | 28785.06 | 688 | 674 | 143.6 |
A | 13 | 248 | 52760 | 362.8 | 688 | 674 | 143.6 |
A | 12 | 189 | 36780 | 251.5 | 688 | 674 | 143.6 |
B | 12 | 16 | 776699 | 5686.45 | 690 | 667 | 136.5 |
B | 5 | 255 | 47278 | 341.55 | 690 | 667 | 136.5 |
B | 8 | 234 | 37825 | 272.28 | 690 | 667 | 136.5 |
C | 12 | 250 | 15298 | 89.61 | 696 | 702 | 162.9 |
C | 14 | 254 | 4848 | 25.45 | 696 | 702 | 162.9 |
C | 13 | 61 | 4495 | 23.29 | 696 | 702 | 162.9 |
D | 2 | 249 | 178895 | 1025.36 | 688 | 666 | 173.8 |
D | 2 | 165 | 178243 | 1021.61 | 688 | 666 | 173.8 |
D | 12 | 233 | 41194 | 233.16 | 688 | 666 | 173.8 |
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 |
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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 |
|
|
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 | |