Observation information
- date-obs: 2024-12-14
- time-obs: 00:22:31.917100000
- date-end: 2024-12-14
- time-end: 02:18:21.894600000
- obs_id: A13_037T01_9000006440
- exposure: 314.253142893
- 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_49824cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49824cztM0_level2_quad_clean.evt
|
Size (bytes) | 969,364,800 | 51,822,720 |
Size | 924.5 MB
| 49.4 MB
|
Events in quadrant A | 7,347,487 | 464,519 |
Events in quadrant B | 3,357,843 | 617,445 |
Events in quadrant C | 12,015,361 | 52,946 |
Events in quadrant D | 12,714,174 | 29,418 |
Level1 data integrity
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 | 120 | 0 |
B | 0 | 120 | 0 |
C | 0 | 120 | 0 |
D | 0 | 120 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25850 | 1 |
B | 0 | 13896 | 1 |
C | 0 | 39646 | 8 |
D | 0 | 41673 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5781 | 1233 | 21.328490% |
B | 5781 | 153 | 2.646601% |
C | 5780 | 5385 | 93.166090% |
D | 5780 | 5546 | 95.951557% |
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 | 6951 | 5782 | 1131 | 1131 | 16.27% | 19.56% |  |
B | 6951 | 5782 | 96 | 96 | 1.38% | 1.66% |  |
C | 6950 | 5780 | 3410 | 3410 | 49.06% | 59.00% |  |
D | 6950 | 5781 | 4010 | 4010 | 57.70% | 69.37% |  |
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 | 4 | 4 | 2098993 | 13907.96 | 590 | 573 | 150.9 |
A | 0 | 175 | 913029 | 6047.6 | 590 | 573 | 150.9 |
A | 0 | 50 | 339789 | 2248.26 | 590 | 573 | 150.9 |
B | 5 | 49 | 243316 | 1807.74 | 634 | 616 | 134.3 |
B | 10 | 28 | 186021 | 1380.98 | 634 | 616 | 134.3 |
B | 4 | 206 | 86175 | 637.28 | 634 | 616 | 134.3 |
C | 15 | 147 | 4161868 | 72685.14 | 190 | 189 | 57.3 |
C | 15 | 197 | 1974999 | 34490.73 | 190 | 189 | 57.3 |
C | 5 | 236 | 966478 | 16876.57 | 190 | 189 | 57.3 |
D | 7 | 61 | 6539330 | 77006.14 | 262 | 251 | 84.9 |
D | 14 | 66 | 1009485 | 11885.04 | 262 | 251 | 84.9 |
D | 7 | 126 | 712056 | 8382.43 | 262 | 251 | 84.9 |
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 |
 |
 |
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 |  |