Observation information
- date-obs: 2024-09-19
- time-obs: 21:32:19.749400000
- date-end: 2024-09-19
- time-end: 23:47:46.741900000
- obs_id: A13_037T01_9000006436
- exposure: 6083.94187433
- 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_48561cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48561cztM0_level2_quad_clean.evt
|
Size (bytes) | 425,416,320 | 103,772,160 |
Size | 405.7 MB
| 99.0 MB
|
Events in quadrant A | 6,808,238 | 664,882 |
Events in quadrant B | 2,772,409 | 721,853 |
Events in quadrant C | 2,656,738 | 690,322 |
Events in quadrant D | 3,012,186 | 618,026 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24579 | 5 |
B | 0 | 13086 | 2 |
C | 0 | 12968 | 2 |
D | 0 | 14012 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 17 | 1 |
C | 0 | 17 | 0 |
D | 0 | 18 | 2 |
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 | 6408 | 283 | 4.416355% |
B | 6408 | 24 | 0.374532% |
C | 6408 | 13 | 0.202871% |
D | 6408 | 63 | 0.983146% |
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 | 7548 | 6409 | 151 | 151 | 2.00% | 2.36% | |
B | 7548 | 6409 | 4 | 4 | 0.05% | 0.06% | |
C | 7548 | 6409 | 3 | 3 | 0.04% | 0.05% | |
D | 7548 | 6409 | 50 | 50 | 0.66% | 0.78% | |
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 | 4022121 | 28760.41 | 672 | 659 | 139.8 |
A | 12 | 189 | 98361 | 698.74 | 672 | 659 | 139.8 |
A | 13 | 248 | 39454 | 277.45 | 672 | 659 | 139.8 |
B | 5 | 255 | 32241 | 235.44 | 686 | 663 | 134.1 |
B | 12 | 111 | 17250 | 123.67 | 686 | 663 | 134.1 |
B | 11 | 111 | 15716 | 112.23 | 686 | 663 | 134.1 |
C | 12 | 250 | 13195 | 78.84 | 676 | 679 | 158.7 |
C | 14 | 254 | 6294 | 35.37 | 676 | 679 | 158.7 |
C | 13 | 61 | 4452 | 23.77 | 676 | 679 | 158.7 |
D | 2 | 249 | 274852 | 1629.03 | 666 | 646 | 168.3 |
D | 2 | 165 | 116182 | 686.39 | 666 | 646 | 168.3 |
D | 2 | 234 | 34563 | 201.5 | 666 | 646 | 168.3 |
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 |
|
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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 | |