Observation information
- date-obs: 2024-09-21
- time-obs: 20:36:52.607500000
- date-end: 2024-09-21
- time-end: 22:43:01.601500000
- obs_id: A13_037T01_9000006436
- exposure: 5696.47491097
- 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_48590cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48590cztM0_level2_quad_clean.evt
|
Size (bytes) | 489,778,560 | 102,493,440 |
Size | 467.1 MB
| 97.7 MB
|
Events in quadrant A | 6,643,160 | 677,305 |
Events in quadrant B | 4,865,214 | 665,076 |
Events in quadrant C | 2,681,329 | 696,995 |
Events in quadrant D | 3,442,864 | 616,881 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23958 | 2 |
B | 0 | 18933 | 3 |
C | 0 | 12967 | 2 |
D | 0 | 15082 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 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 | 6409 | 257 | 4.009986% |
B | 6408 | 702 | 10.955056% |
C | 6408 | 4 | 0.062422% |
D | 6409 | 126 | 1.965985% |
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 | 7569 | 6410 | 125 | 125 | 1.65% | 1.95% | |
B | 7568 | 6409 | 487 | 487 | 6.43% | 7.60% | |
C | 7568 | 6409 | 0 | 0 | 0.00% | 0.00% | |
D | 7569 | 6410 | 92 | 92 | 1.22% | 1.44% | |
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 | 3979802 | 28129.48 | 680 | 668 | 141.5 |
A | 0 | 31 | 27660 | 190.81 | 680 | 668 | 141.5 |
A | 13 | 254 | 12383 | 82.82 | 680 | 668 | 141.5 |
B | 12 | 16 | 2066359 | 15974.9 | 661 | 641 | 129.3 |
B | 5 | 255 | 125048 | 962.08 | 661 | 641 | 129.3 |
B | 0 | 197 | 31280 | 236.94 | 661 | 641 | 129.3 |
C | 14 | 254 | 5571 | 30.23 | 685 | 690 | 161.4 |
C | 13 | 61 | 4489 | 23.53 | 685 | 690 | 161.4 |
C | 8 | 131 | 3447 | 17.08 | 685 | 690 | 161.4 |
D | 2 | 165 | 352877 | 2109.4 | 669 | 647 | 167.0 |
D | 2 | 249 | 282412 | 1687.41 | 669 | 647 | 167.0 |
D | 13 | 171 | 234038 | 1397.71 | 669 | 647 | 167.0 |
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 | |