Observation information
- date-obs: 2024-12-16
- time-obs: 20:05:55.148800000
- date-end: 2024-12-16
- time-end: 22:02:45.125400000
- obs_id: A13_037T01_9000006440
- exposure: 18.1813790798
- 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_9000006440_49866cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49866cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,118,525,760 | 35,637,120 |
Size | 1.0 GB
| 34.0 MB
|
Events in quadrant A | 12,920,737 | 78,435 |
Events in quadrant B | 4,632,072 | 570,907 |
Events in quadrant C | 11,964,881 | 9,227 |
Events in quadrant D | 11,422,964 | 1,872 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 42486 | 2 |
B | 0 | 17906 | 1 |
C | 0 | 39677 | 1 |
D | 0 | 38118 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5980 | 5251 | 87.809365% |
B | 5980 | 504 | 8.428094% |
C | 5980 | 5904 | 98.729097% |
D | 5980 | 5966 | 99.765886% |
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 | 7009 | 5979 | 4210 | 4210 | 60.07% | 70.41% |  |
B | 7009 | 5979 | 375 | 375 | 5.35% | 6.27% |  |
C | 7009 | 5979 | 3471 | 3471 | 49.52% | 58.05% |  |
D | 7009 | 5979 | 2085 | 2085 | 29.75% | 34.87% |  |
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 | 4 | 4 | 9189506 | 127145.47 | 269 | 261 | 72.3 |
A | 0 | 98 | 1290390 | 17850.66 | 269 | 261 | 72.3 |
A | 8 | 62 | 418297 | 5784.09 | 269 | 261 | 72.3 |
B | 4 | 206 | 864283 | 6588.65 | 614 | 594 | 131.1 |
B | 5 | 172 | 558897 | 4259.02 | 614 | 594 | 131.1 |
B | 0 | 229 | 411818 | 3137.02 | 614 | 594 | 131.1 |
C | 4 | 111 | 2965749 | 54479.08 | 132 | 129 | 54.4 |
C | 15 | 230 | 2920698 | 53651.48 | 132 | 129 | 54.4 |
C | 15 | 197 | 1259076 | 23127.13 | 132 | 129 | 54.4 |
D | 7 | 61 | 5628985 | 188058.71 | 77 | 72 | 29.9 |
D | 8 | 129 | 3803116 | 127057.48 | 77 | 72 | 29.9 |
D | 15 | 185 | 491069 | 16403.91 | 77 | 72 | 29.9 |
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 |
 |
 |
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 |  |