Observation information
- date-obs: 2024-09-17
- time-obs: 12:33:35.903400000
- date-end: 2024-09-17
- time-end: 14:31:25.900100000
- obs_id: A13_037T01_9000006436
- exposure: 6577.73400348
- 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_48525cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48525cztM0_level2_quad_clean.evt
|
Size (bytes) | 534,672,000 | 108,648,000 |
Size | 509.9 MB
| 103.6 MB
|
Events in quadrant A | 7,330,599 | 723,189 |
Events in quadrant B | 3,418,439 | 754,143 |
Events in quadrant C | 2,893,622 | 714,111 |
Events in quadrant D | 5,601,395 | 606,138 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27283 | 22 |
B | 0 | 15258 | 9 |
C | 0 | 14360 | 14 |
D | 0 | 21836 | 9 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 2 |
B | 0 | 142 | 2 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7064 | 184 | 2.604757% |
B | 7066 | 47 | 0.665157% |
C | 7064 | 3 | 0.042469% |
D | 7068 | 543 | 7.682513% |
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 | 7070 | 7069 | 79 | 79 | 1.12% | 1.12% | |
B | 7070 | 7070 | 20 | 20 | 0.28% | 0.28% | |
C | 7069 | 7069 | 0 | 0 | 0.00% | 0.00% | |
D | 7071 | 7071 | 596 | 596 | 8.43% | 8.43% | |
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 | 3910660 | 24840.99 | 747 | 731 | 157.4 |
A | 12 | 189 | 289723 | 1836.06 | 747 | 731 | 157.4 |
A | 13 | 248 | 216643 | 1371.76 | 747 | 731 | 157.4 |
B | 12 | 16 | 167171 | 1128.13 | 745 | 722 | 147.5 |
B | 5 | 255 | 85309 | 573.3 | 745 | 722 | 147.5 |
B | 5 | 171 | 50466 | 337.15 | 745 | 722 | 147.5 |
C | 3 | 233 | 8186 | 42.59 | 738 | 741 | 174.8 |
C | 13 | 61 | 4870 | 23.62 | 738 | 741 | 174.8 |
C | 12 | 250 | 4161 | 19.56 | 738 | 741 | 174.8 |
D | 2 | 165 | 2529831 | 13932.53 | 718 | 695 | 181.5 |
D | 12 | 233 | 179325 | 984.04 | 718 | 695 | 181.5 |
D | 2 | 249 | 111086 | 608.12 | 718 | 695 | 181.5 |
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 |
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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 | |