Observation information
- date-obs: 2024-09-23
- time-obs: 22:48:59.457200000
- date-end: 2024-09-24
- time-end: 01:05:33.450700000
- obs_id: A13_037T01_9000006436
- exposure: 6040.05025405
- 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_48621cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48621cztM0_level2_quad_clean.evt
|
Size (bytes) | 423,999,360 | 105,805,440 |
Size | 404.4 MB
| 100.9 MB
|
Events in quadrant A | 6,610,628 | 679,185 |
Events in quadrant B | 2,936,136 | 741,695 |
Events in quadrant C | 2,712,160 | 709,283 |
Events in quadrant D | 2,942,301 | 630,439 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23804 | 2 |
B | 0 | 13396 | 3 |
C | 0 | 12910 | 2 |
D | 0 | 13646 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18 | 0 |
B | 0 | 19 | 0 |
C | 0 | 19 | 0 |
D | 0 | 19 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6356 | 278 | 4.373820% |
B | 6355 | 58 | 0.912667% |
C | 6355 | 10 | 0.157356% |
D | 6355 | 43 | 0.676633% |
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 | 7561 | 6357 | 143 | 143 | 1.89% | 2.25% | |
B | 7560 | 6356 | 11 | 11 | 0.15% | 0.17% | |
C | 7560 | 6356 | 0 | 0 | 0.00% | 0.00% | |
D | 7560 | 6356 | 26 | 26 | 0.34% | 0.41% | |
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 | 3889936 | 27051.04 | 686 | 672 | 143.8 |
A | 13 | 248 | 51308 | 352.19 | 686 | 672 | 143.8 |
A | 0 | 31 | 14825 | 98.44 | 686 | 672 | 143.8 |
B | 12 | 16 | 121087 | 874.01 | 701 | 679 | 137.8 |
B | 5 | 255 | 21419 | 150.54 | 701 | 679 | 137.8 |
B | 12 | 111 | 17399 | 121.36 | 701 | 679 | 137.8 |
C | 14 | 254 | 6001 | 32.4 | 692 | 694 | 163.8 |
C | 14 | 67 | 5616 | 30.05 | 692 | 694 | 163.8 |
C | 12 | 249 | 4616 | 23.94 | 692 | 694 | 163.8 |
D | 10 | 199 | 128814 | 765.61 | 676 | 656 | 167.4 |
D | 2 | 249 | 73807 | 437.0 | 676 | 656 | 167.4 |
D | 7 | 96 | 49754 | 293.31 | 676 | 656 | 167.4 |
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 |
|
|
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 | |