Observation information
- date-obs: 2024-05-17
- time-obs: 13:06:13.449000000
- date-end: 2024-05-17
- time-end: 15:15:20.442200000
- obs_id: A13_037T01_9000006256
- exposure: 6092.69360352
- 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_9000006256_46701cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46701cztM0_level2_quad_clean.evt
|
Size (bytes) | 602,392,320 | 106,407,360 |
Size | 574.5 MB
| 101.5 MB
|
Events in quadrant A | 7,072,489 | 718,397 |
Events in quadrant B | 4,038,403 | 733,881 |
Events in quadrant C | 4,407,496 | 698,053 |
Events in quadrant D | 6,242,993 | 588,101 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26104 | 1 |
B | 0 | 16742 | 4 |
C | 0 | 17969 | 1 |
D | 0 | 23210 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6937 | 273 | 3.935419% |
B | 6936 | 247 | 3.561130% |
C | 6938 | 197 | 2.839435% |
D | 6937 | 915 | 13.190140% |
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 | 7747 | 6937 | 72 | 72 | 0.93% | 1.04% | |
B | 7747 | 6938 | 74 | 74 | 0.96% | 1.07% | |
C | 7748 | 6938 | 120 | 120 | 1.55% | 1.73% | |
D | 7748 | 6938 | 749 | 749 | 9.67% | 10.80% | |
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 | 3682360 | 22972.62 | 765 | 749 | 160.3 |
A | 15 | 235 | 164891 | 1024.22 | 765 | 749 | 160.3 |
A | 13 | 248 | 116463 | 722.04 | 765 | 749 | 160.3 |
B | 4 | 171 | 461858 | 3022.4 | 759 | 736 | 152.6 |
B | 15 | 36 | 218873 | 1429.77 | 759 | 736 | 152.6 |
B | 0 | 198 | 84586 | 549.59 | 759 | 736 | 152.6 |
C | 5 | 250 | 1005628 | 5707.37 | 743 | 747 | 176.1 |
C | 12 | 2 | 337310 | 1911.56 | 743 | 747 | 176.1 |
C | 14 | 254 | 76251 | 428.84 | 743 | 747 | 176.1 |
D | 1 | 52 | 2047332 | 11517.79 | 707 | 685 | 177.7 |
D | 13 | 249 | 487822 | 2741.43 | 707 | 685 | 177.7 |
D | 12 | 128 | 203722 | 1142.62 | 707 | 685 | 177.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
|
|
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 | |