Observation information
- date-obs: 2024-12-14
- time-obs: 10:39:38.799600000
- date-end: 2024-12-14
- time-end: 12:42:25.777000000
- obs_id: A13_037T01_9000006440
- exposure: 950.068024039
- 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_9000006440_49830cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49830cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,455,943,680 | 53,668,800 |
Size | 1.4 GB
| 51.2 MB
|
Events in quadrant A | 19,196,996 | 167,446 |
Events in quadrant B | 4,277,326 | 752,217 |
Events in quadrant C | 12,757,631 | 52,534 |
Events in quadrant D | 17,093,618 | 129,834 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 146 | 0 |
B | 0 | 146 | 0 |
C | 0 | 146 | 0 |
D | 0 | 146 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 61965 | 0 |
B | 0 | 17740 | 0 |
C | 0 | 42997 | 0 |
D | 0 | 55787 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7366 | 7195 | 97.678523% |
B | 7366 | 126 | 1.710562% |
C | 7367 | 7367 | 100.000000% |
D | 7367 | 7361 | 99.918556% |
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 | 7366 | 7366 | 6606 | 6606 | 89.68% | 89.68% |  |
B | 7366 | 7366 | 89 | 89 | 1.21% | 1.21% |  |
C | 7366 | 7365 | 1746 | 1746 | 23.70% | 23.71% |  |
D | 7366 | 7365 | 5508 | 5508 | 74.78% | 74.79% |  |
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 | 0 | 98 | 7348834 | 123916.88 | 206 | 199 | 59.3 |
A | 4 | 4 | 6436340 | 108529.88 | 206 | 199 | 59.3 |
A | 3 | 84 | 1897119 | 31986.95 | 206 | 199 | 59.3 |
B | 4 | 206 | 195911 | 1170.52 | 781 | 756 | 166.7 |
B | 10 | 44 | 177780 | 1061.78 | 781 | 756 | 166.7 |
B | 0 | 229 | 176159 | 1052.05 | 781 | 756 | 166.7 |
C | 15 | 147 | 3463523 | 104343.75 | 76 | 73 | 33.2 |
C | 15 | 197 | 2552522 | 76897.92 | 76 | 73 | 33.2 |
C | 15 | 174 | 1063715 | 32044.46 | 76 | 73 | 33.2 |
D | 7 | 61 | 5118897 | 64370.68 | 183 | 172 | 79.5 |
D | 7 | 126 | 1635569 | 20565.98 | 183 | 172 | 79.5 |
D | 14 | 66 | 1243867 | 15640.12 | 183 | 172 | 79.5 |
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 |
 |
 |
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 |  |