Observation information
- date-obs: 2024-09-17
- time-obs: 16:24:23.896400000
- date-end: 2024-09-17
- time-end: 18:34:13.891000000
- obs_id: A13_037T01_9000006436
- exposure: 5982.6408931
- 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_48708cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48708cztM0_level2_quad_clean.evt
|
Size (bytes) | 443,018,880 | 107,665,920 |
Size | 422.5 MB
| 102.7 MB
|
Events in quadrant A | 6,940,087 | 690,059 |
Events in quadrant B | 3,147,593 | 750,917 |
Events in quadrant C | 2,853,660 | 723,619 |
Events in quadrant D | 2,963,793 | 651,967 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24846 | 2 |
B | 0 | 13920 | 2 |
C | 0 | 13115 | 2 |
D | 0 | 13595 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6361 | 381 | 5.989624% |
B | 6361 | 89 | 1.399151% |
C | 6361 | 20 | 0.314416% |
D | 6361 | 51 | 0.801761% |
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 | 7596 | 6362 | 207 | 207 | 2.73% | 3.25% | |
B | 7596 | 6362 | 17 | 17 | 0.22% | 0.27% | |
C | 7596 | 6362 | 0 | 0 | 0.00% | 0.00% | |
D | 7596 | 6362 | 29 | 29 | 0.38% | 0.46% | |
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 | 4028047 | 27598.53 | 703 | 687 | 145.9 |
A | 13 | 248 | 169265 | 1155.22 | 703 | 687 | 145.9 |
A | 7 | 3 | 24257 | 161.52 | 703 | 687 | 145.9 |
B | 12 | 16 | 239928 | 1708.66 | 717 | 694 | 140.0 |
B | 10 | 7 | 32327 | 225.93 | 717 | 694 | 140.0 |
B | 5 | 171 | 19485 | 134.21 | 717 | 694 | 140.0 |
C | 3 | 233 | 44026 | 256.26 | 714 | 719 | 169.0 |
C | 12 | 2 | 10984 | 60.74 | 714 | 719 | 169.0 |
C | 14 | 254 | 6960 | 36.93 | 714 | 719 | 169.0 |
D | 2 | 249 | 174076 | 996.01 | 702 | 680 | 174.1 |
D | 5 | 32 | 40300 | 227.58 | 702 | 680 | 174.1 |
D | 2 | 234 | 30600 | 171.87 | 702 | 680 | 174.1 |
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 | |