Observation information
- date-obs: 2024-09-21
- time-obs: 11:51:36.632600000
- date-end: 2024-09-21
- time-end: 17:33:24.617000000
- obs_id: A13_037T01_9000006436
- exposure: 14922.3389698
- 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_48586cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48586cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,718,902,080 | 276,312,960 |
Size | 1.6 GB
| 263.5 MB
|
Events in quadrant A | 18,940,144 | 1,916,367 |
Events in quadrant B | 12,305,774 | 1,897,098 |
Events in quadrant C | 8,051,850 | 1,926,934 |
Events in quadrant D | 22,849,774 | 1,303,757 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 70567 | 2 |
B | 0 | 50378 | 2 |
C | 0 | 39163 | 2 |
D | 0 | 81592 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 386 | 0 |
B | 0 | 386 | 0 |
C | 0 | 386 | 0 |
D | 0 | 386 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 19183 | 771 | 4.019184% |
B | 19184 | 1417 | 7.386364% |
C | 19184 | 249 | 1.297957% |
D | 19183 | 4922 | 25.658135% |
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 | 20508 | 19187 | 34 | 34 | 0.17% | 0.18% | |
B | 20509 | 19188 | 749 | 749 | 3.65% | 3.90% | |
C | 20509 | 19188 | 0 | 0 | 0.00% | 0.00% | |
D | 20508 | 19187 | 3315 | 3315 | 16.16% | 17.28% | |
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 | 10913952 | 25586.16 | 2059 | 2011 | 426.5 |
A | 13 | 248 | 43905 | 98.23 | 2059 | 2011 | 426.5 |
A | 13 | 254 | 37825 | 83.98 | 2059 | 2011 | 426.5 |
B | 12 | 16 | 3336250 | 8323.87 | 2027 | 1955 | 400.6 |
B | 5 | 255 | 880569 | 2193.41 | 2027 | 1955 | 400.6 |
B | 12 | 111 | 52594 | 126.42 | 2027 | 1955 | 400.6 |
C | 3 | 233 | 17669 | 32.23 | 2058 | 2070 | 483.9 |
C | 14 | 67 | 15920 | 28.62 | 2058 | 2070 | 483.9 |
C | 13 | 61 | 13810 | 24.26 | 2058 | 2070 | 483.9 |
D | 2 | 165 | 14749517 | 31640.12 | 1851 | 1791 | 466.1 |
D | 13 | 171 | 543782 | 1162.8 | 1851 | 1791 | 466.1 |
D | 2 | 249 | 230021 | 489.65 | 1851 | 1791 | 466.1 |
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 |
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|
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 | |