Observation information
- date-obs: 2024-09-17
- time-obs: 22:43:59.879700000
- date-end: 2024-09-18
- time-end: 00:53:25.874400000
- obs_id: A13_037T01_9000006436
- exposure: 6200.32217652
- 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_48532cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48532cztM0_level2_quad_clean.evt
|
Size (bytes) | 435,265,920 | 104,022,720 |
Size | 415.1 MB
| 99.2 MB
|
Events in quadrant A | 6,773,077 | 673,107 |
Events in quadrant B | 2,975,109 | 718,743 |
Events in quadrant C | 2,703,937 | 692,294 |
Events in quadrant D | 3,155,278 | 612,523 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24608 | 82 |
B | 0 | 13799 | 18 |
C | 0 | 13204 | 11 |
D | 0 | 14538 | 79 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 2 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 2 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6494 | 219 | 3.372344% |
B | 6501 | 72 | 1.107522% |
C | 6501 | 8 | 0.123058% |
D | 6494 | 136 | 2.094241% |
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 | 7600 | 6500 | 123 | 123 | 1.62% | 1.89% | |
B | 7600 | 6506 | 39 | 39 | 0.51% | 0.60% | |
C | 7600 | 6505 | 2 | 2 | 0.03% | 0.03% | |
D | 7600 | 6502 | 106 | 106 | 1.39% | 1.63% | |
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 | 3955389 | 27938.54 | 677 | 664 | 141.6 |
A | 12 | 189 | 180028 | 1267.13 | 677 | 664 | 141.6 |
A | 7 | 3 | 17403 | 118.25 | 677 | 664 | 141.6 |
B | 5 | 255 | 211457 | 1570.06 | 688 | 666 | 134.3 |
B | 12 | 16 | 22208 | 160.45 | 688 | 666 | 134.3 |
B | 12 | 111 | 17105 | 122.44 | 688 | 666 | 134.3 |
C | 12 | 250 | 21259 | 128.18 | 680 | 685 | 160.5 |
C | 3 | 233 | 15744 | 93.82 | 680 | 685 | 160.5 |
C | 14 | 254 | 8456 | 48.41 | 680 | 685 | 160.5 |
D | 14 | 34 | 315477 | 1894.25 | 664 | 645 | 166.2 |
D | 2 | 249 | 99320 | 593.7 | 664 | 645 | 166.2 |
D | 2 | 165 | 83538 | 498.74 | 664 | 645 | 166.2 |
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 |
|
|
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 | |