Observation information
- date-obs: 2024-09-20
- time-obs: 09:55:36.710000000
- date-end: 2024-09-20
- time-end: 12:00:15.704300000
- obs_id: A13_037T01_9000006436
- exposure: 5124.30968845
- 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_48568cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48568cztM0_level2_quad_clean.evt
|
Size (bytes) | 378,469,440 | 84,257,280 |
Size | 360.9 MB
| 80.4 MB
|
Events in quadrant A | 5,120,147 | 529,928 |
Events in quadrant B | 3,030,321 | 568,236 |
Events in quadrant C | 2,363,168 | 559,555 |
Events in quadrant D | 3,056,535 | 498,491 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23540 | 4679 |
B | 0 | 16050 | 3031 |
C | 0 | 13522 | 1982 |
D | 0 | 15883 | 2715 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 12 |
B | 0 | 128 | 16 |
C | 0 | 128 | 12 |
D | 0 | 128 | 18 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5446 | 70 | 1.285347% |
B | 5669 | 155 | 2.734168% |
C | 5731 | 2 | 0.034898% |
D | 5705 | 47 | 0.823839% |
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 | 7480 | 5862 | 0 | 0 | 0.00% | 0.00% | |
B | 7475 | 6105 | 75 | 75 | 1.00% | 1.23% | |
C | 7480 | 6150 | 0 | 0 | 0.00% | 0.00% | |
D | 7480 | 6110 | 46 | 46 | 0.61% | 0.75% | |
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 | 2808845 | 22686.78 | 584 | 569 | 123.8 |
A | 12 | 189 | 45183 | 360.42 | 584 | 569 | 123.8 |
A | 13 | 254 | 10217 | 77.94 | 584 | 569 | 123.8 |
B | 12 | 16 | 363051 | 3026.13 | 603 | 582 | 119.8 |
B | 12 | 48 | 255190 | 2125.63 | 603 | 582 | 119.8 |
B | 12 | 111 | 15975 | 128.51 | 603 | 582 | 119.8 |
C | 12 | 250 | 4356 | 26.17 | 604 | 605 | 143.3 |
C | 14 | 67 | 4176 | 24.91 | 604 | 605 | 143.3 |
C | 13 | 61 | 4034 | 23.92 | 604 | 605 | 143.3 |
D | 2 | 165 | 447217 | 3000.77 | 593 | 574 | 148.8 |
D | 13 | 171 | 106897 | 714.33 | 593 | 574 | 148.8 |
D | 7 | 96 | 103153 | 689.18 | 593 | 574 | 148.8 |
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 |
|
|
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 | |