Observation information
- date-obs: 2024-05-01
- time-obs: 14:36:22.325100000
- date-end: 2024-05-01
- time-end: 15:38:50.322300000
- obs_id: A13_037T01_9000006212
- exposure: 3211.34984303
- 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_9000006212_46465cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006212_46465cztM0_level2_quad_clean.evt
|
Size (bytes) | 305,314,560 | 57,732,480 |
Size | 291.2 MB
| 55.1 MB
|
Events in quadrant A | 3,434,882 | 395,484 |
Events in quadrant B | 1,808,376 | 401,974 |
Events in quadrant C | 1,659,334 | 380,137 |
Events in quadrant D | 4,106,961 | 305,766 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 74 | 0 |
B | 0 | 74 | 0 |
C | 0 | 74 | 0 |
D | 0 | 74 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12854 | 0 |
B | 0 | 7938 | 4 |
C | 0 | 7666 | 0 |
D | 0 | 14786 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 3748 | 14 | 0.373533% |
B | 3746 | 23 | 0.613988% |
C | 3749 | 3 | 0.080021% |
D | 3749 | 612 | 16.324353% |
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 | 3748 | 3748 | 0 | 0 | 0.00% | 0.00% | |
B | 3749 | 3748 | 16 | 16 | 0.43% | 0.43% | |
C | 3749 | 3749 | 1 | 1 | 0.03% | 0.03% | |
D | 3749 | 3749 | 561 | 561 | 14.96% | 14.96% | |
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 | 1805875 | 20874.07 | 408 | 399 | 86.5 |
A | 0 | 243 | 14402 | 161.9 | 408 | 399 | 86.5 |
A | 0 | 247 | 10247 | 113.86 | 408 | 399 | 86.5 |
B | 5 | 172 | 88752 | 1098.43 | 405 | 394 | 80.4 |
B | 15 | 201 | 23055 | 281.71 | 405 | 394 | 80.4 |
B | 0 | 245 | 18840 | 229.31 | 405 | 394 | 80.4 |
C | 3 | 233 | 44974 | 465.54 | 399 | 400 | 95.7 |
C | 12 | 2 | 31049 | 320.11 | 399 | 400 | 95.7 |
C | 12 | 249 | 27113 | 279.0 | 399 | 400 | 95.7 |
D | 1 | 52 | 1332580 | 13961.29 | 373 | 361 | 95.4 |
D | 12 | 233 | 650428 | 6812.52 | 373 | 361 | 95.4 |
D | 10 | 181 | 218307 | 2284.01 | 373 | 361 | 95.4 |
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 |
|
|
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 | |