Observation information
- date-obs: 2024-09-17
- time-obs: 04:00:00.920800000
- date-end: 2024-09-17
- time-end: 09:56:28.907800000
- obs_id: A13_037T01_9000006436
- exposure: 18386.977987
- 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_48702cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48702cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,431,630,720 | 306,466,560 |
Size | 1.3 GB
| 292.3 MB
|
Events in quadrant A | 20,462,267 | 2,007,000 |
Events in quadrant B | 12,050,960 | 1,962,656 |
Events in quadrant C | 9,114,956 | 2,053,314 |
Events in quadrant D | 9,793,032 | 1,854,205 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 76193 | 2 |
B | 0 | 50511 | 2 |
C | 0 | 42333 | 2 |
D | 0 | 44678 | 2 |
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 | 412 | 0 |
B | 0 | 412 | 0 |
C | 0 | 412 | 0 |
D | 0 | 412 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 20343 | 949 | 4.664995% |
B | 20344 | 1855 | 9.118168% |
C | 20344 | 266 | 1.307511% |
D | 20344 | 346 | 1.700747% |
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 | 21388 | 20345 | 129 | 129 | 0.60% | 0.63% | |
B | 21389 | 20346 | 934 | 934 | 4.37% | 4.59% | |
C | 21389 | 20346 | 22 | 22 | 0.10% | 0.11% | |
D | 21389 | 20346 | 116 | 116 | 0.54% | 0.57% | |
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 | 11304377 | 24342.02 | 2222 | 2167 | 464.3 |
A | 13 | 248 | 504071 | 1080.97 | 2222 | 2167 | 464.3 |
A | 13 | 254 | 38212 | 77.63 | 2222 | 2167 | 464.3 |
B | 12 | 16 | 3330536 | 7720.73 | 2174 | 2102 | 431.1 |
B | 12 | 111 | 57241 | 127.9 | 2174 | 2102 | 431.1 |
B | 11 | 111 | 53332 | 118.83 | 2174 | 2102 | 431.1 |
C | 14 | 254 | 216852 | 410.18 | 2221 | 2231 | 523.2 |
C | 12 | 2 | 148632 | 279.8 | 2221 | 2231 | 523.2 |
C | 3 | 233 | 30110 | 53.28 | 2221 | 2231 | 523.2 |
D | 2 | 249 | 905312 | 1644.08 | 2202 | 2134 | 549.4 |
D | 7 | 38 | 128546 | 230.11 | 2202 | 2134 | 549.4 |
D | 2 | 234 | 110175 | 196.67 | 2202 | 2134 | 549.4 |
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 |
|
|
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 | |