Observation information
- date-obs: 2024-09-16
- time-obs: 10:07:44.960800000
- date-end: 2024-09-16
- time-end: 12:26:46.956800000
- obs_id: A13_037T01_9000006432
- exposure: 7809.8157922
- 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_9000006432_48509cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006432_48509cztM0_level2_quad_clean.evt
|
Size (bytes) | 548,441,280 | 126,639,360 |
Size | 523.0 MB
| 120.8 MB
|
Events in quadrant A | 8,165,356 | 823,503 |
Events in quadrant B | 3,734,476 | 866,609 |
Events in quadrant C | 3,546,350 | 830,549 |
Events in quadrant D | 4,213,394 | 739,266 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30831 | 1 |
B | 0 | 17140 | 1 |
C | 0 | 16981 | 1 |
D | 0 | 18846 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 166 | 0 |
B | 0 | 166 | 0 |
C | 0 | 166 | 0 |
D | 0 | 166 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8267 | 397 | 4.802226% |
B | 8268 | 275 | 3.326076% |
C | 8268 | 182 | 2.201258% |
D | 8268 | 380 | 4.596033% |
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 | 8342 | 8268 | 3 | 3 | 0.04% | 0.04% | |
B | 8343 | 8269 | 2 | 2 | 0.02% | 0.02% | |
C | 8343 | 8269 | 0 | 0 | 0.00% | 0.00% | |
D | 8343 | 8269 | 195 | 195 | 2.34% | 2.36% | |
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 | 4456313 | 23277.77 | 908 | 885 | 191.4 |
A | 12 | 189 | 184261 | 958.06 | 908 | 885 | 191.4 |
A | 13 | 254 | 15356 | 75.6 | 908 | 885 | 191.4 |
B | 12 | 16 | 57529 | 309.15 | 913 | 879 | 183.2 |
B | 0 | 186 | 29409 | 155.69 | 913 | 879 | 183.2 |
B | 12 | 111 | 24313 | 127.88 | 913 | 879 | 183.2 |
C | 1 | 3 | 11154 | 48.06 | 904 | 906 | 213.2 |
C | 14 | 254 | 7855 | 32.59 | 904 | 906 | 213.2 |
C | 13 | 61 | 5953 | 23.67 | 904 | 906 | 213.2 |
D | 2 | 165 | 650249 | 2922.39 | 889 | 859 | 222.2 |
D | 2 | 249 | 76248 | 339.27 | 889 | 859 | 222.2 |
D | 10 | 199 | 49071 | 216.96 | 889 | 859 | 222.2 |
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 |
|
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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 |
|
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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 |
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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 | |