Observation information
- date-obs: 2024-09-21
- time-obs: 23:55:39.597500000
- date-end: 2024-09-22
- time-end: 02:11:08.590200000
- obs_id: A13_037T01_9000006436
- exposure: 6137.35710675
- 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_48592cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48592cztM0_level2_quad_clean.evt
|
Size (bytes) | 442,500,480 | 106,079,040 |
Size | 422.0 MB
| 101.2 MB
|
Events in quadrant A | 6,681,443 | 690,851 |
Events in quadrant B | 3,630,383 | 726,299 |
Events in quadrant C | 2,733,603 | 709,497 |
Events in quadrant D | 2,834,934 | 636,667 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24173 | 2 |
B | 0 | 15455 | 2 |
C | 0 | 13097 | 2 |
D | 0 | 13591 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 18 | 0 |
C | 0 | 18 | 0 |
D | 0 | 18 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6433 | 235 | 3.653039% |
B | 6433 | 221 | 3.435411% |
C | 6433 | 7 | 0.108814% |
D | 6433 | 20 | 0.310897% |
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 | 7603 | 6434 | 89 | 89 | 1.17% | 1.38% | |
B | 7603 | 6434 | 73 | 73 | 0.96% | 1.13% | |
C | 7603 | 6434 | 0 | 0 | 0.00% | 0.00% | |
D | 7603 | 6434 | 20 | 20 | 0.26% | 0.31% | |
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 | 3899093 | 27284.33 | 690 | 674 | 142.9 |
A | 13 | 248 | 52014 | 359.32 | 690 | 674 | 142.9 |
A | 7 | 3 | 38354 | 263.71 | 690 | 674 | 142.9 |
B | 12 | 16 | 822359 | 6011.01 | 697 | 674 | 136.7 |
B | 0 | 183 | 28810 | 205.83 | 697 | 674 | 136.7 |
B | 0 | 197 | 19035 | 134.32 | 697 | 674 | 136.7 |
C | 12 | 250 | 10492 | 59.8 | 695 | 700 | 163.7 |
C | 3 | 233 | 8069 | 45.01 | 695 | 700 | 163.7 |
C | 13 | 61 | 4638 | 24.05 | 695 | 700 | 163.7 |
D | 2 | 249 | 134192 | 785.34 | 681 | 659 | 170.0 |
D | 13 | 171 | 67992 | 396.0 | 681 | 659 | 170.0 |
D | 2 | 234 | 31458 | 181.13 | 681 | 659 | 170.0 |
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 |
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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 | |