Observation information
- date-obs: 2024-09-19
- time-obs: 04:13:59.801200000
- date-end: 2024-09-19
- time-end: 06:26:54.794000000
- obs_id: A13_037T01_9000006436
- exposure: 6481.21476406
- 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_48550cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48550cztM0_level2_quad_clean.evt
|
Size (bytes) | 441,463,680 | 107,588,160 |
Size | 421.0 MB
| 102.6 MB
|
Events in quadrant A | 7,010,397 | 687,733 |
Events in quadrant B | 3,055,092 | 736,249 |
Events in quadrant C | 2,882,947 | 710,251 |
Events in quadrant D | 2,861,566 | 646,465 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25763 | 2 |
B | 0 | 14267 | 2 |
C | 0 | 14037 | 3 |
D | 0 | 14100 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6841 | 287 | 4.195293% |
B | 6841 | 127 | 1.856454% |
C | 6840 | 36 | 0.526316% |
D | 6840 | 28 | 0.409357% |
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 | 7797 | 6843 | 25 | 25 | 0.32% | 0.37% | |
B | 7797 | 6843 | 4 | 4 | 0.05% | 0.06% | |
C | 7796 | 6842 | 0 | 0 | 0.00% | 0.00% | |
D | 7796 | 6842 | 5 | 5 | 0.06% | 0.07% | |
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 | 4144935 | 26988.48 | 731 | 715 | 153.6 |
A | 7 | 3 | 16359 | 101.88 | 731 | 715 | 153.6 |
A | 12 | 189 | 15505 | 96.32 | 731 | 715 | 153.6 |
B | 12 | 16 | 58589 | 392.79 | 745 | 719 | 147.3 |
B | 5 | 255 | 19548 | 127.8 | 745 | 719 | 147.3 |
B | 12 | 111 | 19095 | 124.73 | 745 | 719 | 147.3 |
C | 12 | 250 | 10788 | 57.96 | 733 | 736 | 173.4 |
C | 3 | 233 | 8422 | 44.32 | 733 | 736 | 173.4 |
C | 14 | 67 | 7210 | 37.33 | 733 | 736 | 173.4 |
D | 2 | 249 | 57834 | 314.06 | 726 | 702 | 181.9 |
D | 2 | 234 | 30924 | 166.13 | 726 | 702 | 181.9 |
D | 2 | 233 | 23654 | 126.17 | 726 | 702 | 181.9 |
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 |
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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 | |