Observation information
- date-obs: 2024-09-17
- time-obs: 19:56:02.887400000
- date-end: 2024-09-17
- time-end: 22:01:12.882100000
- obs_id: A13_037T01_9000006436
- exposure: 6220.99723637
- 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_48710cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48710cztM0_level2_quad_clean.evt
|
Size (bytes) | 424,370,880 | 104,682,240 |
Size | 404.7 MB
| 99.8 MB
|
Events in quadrant A | 6,748,517 | 669,000 |
Events in quadrant B | 2,865,992 | 722,342 |
Events in quadrant C | 2,783,788 | 695,203 |
Events in quadrant D | 2,801,750 | 626,539 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24389 | 2 |
B | 0 | 13464 | 2 |
C | 0 | 13328 | 2 |
D | 0 | 13497 | 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 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6545 | 280 | 4.278075% |
B | 6546 | 32 | 0.488848% |
C | 6546 | 9 | 0.137489% |
D | 6546 | 11 | 0.168042% |
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 | 7509 | 6545 | 165 | 165 | 2.20% | 2.52% | |
B | 7511 | 6547 | 7 | 7 | 0.09% | 0.11% | |
C | 7511 | 6547 | 1 | 1 | 0.01% | 0.02% | |
D | 7511 | 6547 | 6 | 6 | 0.08% | 0.09% | |
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 | 3876341 | 26864.29 | 689 | 672 | 144.3 |
A | 13 | 248 | 197394 | 1363.58 | 689 | 672 | 144.3 |
A | 13 | 254 | 12769 | 83.85 | 689 | 672 | 144.3 |
B | 12 | 16 | 38149 | 268.67 | 707 | 683 | 139.4 |
B | 12 | 111 | 17971 | 123.97 | 707 | 683 | 139.4 |
B | 11 | 111 | 16587 | 114.05 | 707 | 683 | 139.4 |
C | 3 | 233 | 31319 | 185.77 | 698 | 701 | 164.8 |
C | 14 | 254 | 11347 | 64.59 | 698 | 701 | 164.8 |
C | 12 | 2 | 8469 | 47.13 | 698 | 701 | 164.8 |
D | 12 | 238 | 71402 | 411.61 | 687 | 666 | 171.9 |
D | 2 | 234 | 33745 | 192.49 | 687 | 666 | 171.9 |
D | 2 | 233 | 30247 | 172.13 | 687 | 666 | 171.9 |
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 | |