Observation information
- date-obs: 2024-09-20
- time-obs: 20:22:00.680700000
- date-end: 2024-09-20
- time-end: 22:24:05.674300000
- obs_id: A13_037T01_9000006436
- exposure: 5837.88804531
- 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_48575cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48575cztM0_level2_quad_clean.evt
|
Size (bytes) | 460,457,280 | 98,729,280 |
Size | 439.1 MB
| 94.2 MB
|
Events in quadrant A | 6,279,349 | 646,670 |
Events in quadrant B | 2,689,492 | 687,235 |
Events in quadrant C | 2,544,249 | 658,165 |
Events in quadrant D | 5,049,218 | 563,094 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22694 | 1 |
B | 0 | 12727 | 1 |
C | 0 | 12538 | 1 |
D | 0 | 19474 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 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 | 6214 | 157 | 2.526553% |
B | 6215 | 20 | 0.321802% |
C | 6215 | 8 | 0.128721% |
D | 6215 | 427 | 6.870475% |
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 | 7325 | 6215 | 93 | 93 | 1.27% | 1.50% | |
B | 7326 | 6216 | 1 | 1 | 0.01% | 0.02% | |
C | 7326 | 6216 | 0 | 0 | 0.00% | 0.00% | |
D | 7326 | 6216 | 377 | 377 | 5.15% | 6.06% | |
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 | 3650274 | 27194.93 | 646 | 633 | 134.2 |
A | 0 | 31 | 128123 | 949.98 | 646 | 633 | 134.2 |
A | 13 | 254 | 12713 | 90.01 | 646 | 633 | 134.2 |
B | 5 | 255 | 40096 | 305.96 | 656 | 634 | 129.0 |
B | 12 | 18 | 27887 | 211.3 | 656 | 634 | 129.0 |
B | 12 | 111 | 16605 | 123.83 | 656 | 634 | 129.0 |
C | 12 | 250 | 5068 | 28.74 | 650 | 654 | 153.6 |
C | 13 | 61 | 4152 | 22.78 | 650 | 654 | 153.6 |
C | 14 | 254 | 4033 | 22.0 | 650 | 654 | 153.6 |
D | 2 | 165 | 2225023 | 14245.52 | 626 | 605 | 156.1 |
D | 13 | 171 | 257167 | 1643.06 | 626 | 605 | 156.1 |
D | 12 | 128 | 64789 | 411.04 | 626 | 605 | 156.1 |
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 | |