Observation information
- date-obs: 2024-05-17
- time-obs: 23:32:45.414700000
- date-end: 2024-05-18
- time-end: 01:37:15.408400000
- obs_id: A13_037T01_9000006256
- exposure: 5692.94202435
- 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_46708cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46708cztM0_level2_quad_clean.evt
|
Size (bytes) | 527,411,520 | 103,947,840 |
Size | 503.0 MB
| 99.1 MB
|
Events in quadrant A | 6,116,757 | 694,108 |
Events in quadrant B | 3,326,155 | 729,785 |
Events in quadrant C | 2,834,522 | 701,027 |
Events in quadrant D | 6,743,222 | 570,622 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22505 | 1 |
B | 0 | 14538 | 1 |
C | 0 | 13338 | 1 |
D | 0 | 24524 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6481 | 215 | 3.317389% |
B | 6481 | 107 | 1.650980% |
C | 6481 | 29 | 0.447462% |
D | 6481 | 931 | 14.365067% |
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 | 7471 | 6482 | 24 | 24 | 0.32% | 0.37% | |
B | 7471 | 6482 | 19 | 19 | 0.25% | 0.29% | |
C | 7471 | 6482 | 0 | 0 | 0.00% | 0.00% | |
D | 7471 | 6482 | 846 | 846 | 11.32% | 13.05% | |
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 | 3248206 | 21875.37 | 709 | 695 | 148.5 |
A | 9 | 191 | 62253 | 414.66 | 709 | 695 | 148.5 |
A | 13 | 248 | 38849 | 257.01 | 709 | 695 | 148.5 |
B | 4 | 171 | 202324 | 1401.56 | 722 | 699 | 143.9 |
B | 0 | 190 | 59844 | 411.14 | 722 | 699 | 143.9 |
B | 15 | 201 | 58714 | 403.28 | 722 | 699 | 143.9 |
C | 14 | 254 | 33852 | 196.65 | 711 | 715 | 168.5 |
C | 3 | 233 | 16354 | 92.81 | 711 | 715 | 168.5 |
C | 9 | 244 | 6899 | 36.7 | 711 | 715 | 168.5 |
D | 13 | 168 | 2641176 | 15622.12 | 670 | 649 | 169.0 |
D | 1 | 52 | 737096 | 4357.03 | 670 | 649 | 169.0 |
D | 13 | 249 | 279015 | 1646.89 | 670 | 649 | 169.0 |
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 | |