Observation information
- date-obs: 2024-09-18
- time-obs: 08:58:45.852600000
- date-end: 2024-09-18
- time-end: 11:21:16.847700000
- obs_id: A13_037T01_9000006436
- exposure: 7800.95897919
- 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_48538cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48538cztM0_level2_quad_clean.evt
|
Size (bytes) | 571,870,080 | 126,432,000 |
Size | 545.4 MB
| 120.6 MB
|
Events in quadrant A | 8,268,354 | 810,791 |
Events in quadrant B | 4,232,037 | 847,433 |
Events in quadrant C | 3,672,464 | 836,067 |
Events in quadrant D | 4,339,934 | 746,876 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30828 | 140 |
B | 0 | 18887 | 79 |
C | 0 | 17655 | 85 |
D | 0 | 19274 | 77 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1 | 0 |
B | 0 | 1 | 0 |
C | 0 | 1 | 0 |
D | 0 | 1 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 172 | 0 |
B | 0 | 172 | 0 |
C | 0 | 172 | 2 |
D | 0 | 172 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8442 | 586 | 6.941483% |
B | 8450 | 540 | 6.390533% |
C | 8449 | 289 | 3.420523% |
D | 8452 | 374 | 4.424988% |
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 | 8548 | 8469 | 5 | 5 | 0.06% | 0.06% | |
B | 8548 | 8471 | 71 | 71 | 0.83% | 0.84% | |
C | 8552 | 8471 | 0 | 0 | 0.00% | 0.00% | |
D | 8550 | 8467 | 52 | 52 | 0.61% | 0.61% | |
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 | 4375876 | 22162.88 | 929 | 904 | 197.4 |
A | 12 | 189 | 273228 | 1379.55 | 929 | 904 | 197.4 |
A | 13 | 248 | 22340 | 108.59 | 929 | 904 | 197.4 |
B | 5 | 255 | 407508 | 2189.16 | 928 | 897 | 185.7 |
B | 12 | 16 | 84372 | 449.42 | 928 | 897 | 185.7 |
B | 0 | 183 | 27835 | 145.03 | 928 | 897 | 185.7 |
C | 14 | 254 | 27871 | 122.66 | 933 | 935 | 219.6 |
C | 13 | 61 | 6247 | 24.19 | 933 | 935 | 219.6 |
C | 10 | 20 | 4268 | 15.18 | 933 | 935 | 219.6 |
D | 2 | 165 | 664228 | 2863.69 | 927 | 895 | 231.6 |
D | 2 | 249 | 65062 | 277.02 | 927 | 895 | 231.6 |
D | 12 | 233 | 46785 | 198.11 | 927 | 895 | 231.6 |
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 | |