Observation information
- date-obs: 2024-12-09
- time-obs: 20:45:34.670200000
- date-end: 2024-12-09
- time-end: 23:20:42.035400000
- obs_id: A13_037T01_9000006440
- exposure: 11.7927199602
- 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_49762cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49762cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,473,497,280 | 49,841,280 |
Size | 1.4 GB
| 47.5 MB
|
Events in quadrant A | 18,999,457 | 85,343 |
Events in quadrant B | 5,037,980 | 775,361 |
Events in quadrant C | 11,519,597 | 1,118 |
Events in quadrant D | 18,377,716 | 98,944 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 162 | 0 |
B | 0 | 162 | 0 |
C | 0 | 162 | 0 |
D | 0 | 162 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 61725 | 2 |
B | 0 | 20296 | 2 |
C | 0 | 39709 | 2 |
D | 0 | 59964 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7878 | 7222 | 91.673013% |
B | 7879 | 305 | 3.871050% |
C | 7879 | 7872 | 99.911156% |
D | 7879 | 6951 | 88.221856% |
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 | 9308 | 7878 | 7442 | 7442 | 79.95% | 94.47% |  |
B | 9309 | 7879 | 215 | 215 | 2.31% | 2.73% |  |
C | 9308 | 7878 | 2388 | 2388 | 25.66% | 30.31% |  |
D | 9308 | 7878 | 6638 | 6638 | 71.31% | 84.26% |  |
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 | 8547668 | 54550.49 | 564 | 545 | 156.7 |
A | 12 | 50 | 3341627 | 21323.86 | 564 | 545 | 156.7 |
A | 7 | 64 | 876588 | 5591.19 | 564 | 545 | 156.7 |
B | 10 | 28 | 465574 | 2618.45 | 839 | 813 | 177.5 |
B | 5 | 185 | 176437 | 989.46 | 839 | 813 | 177.5 |
B | 4 | 171 | 165845 | 929.78 | 839 | 813 | 177.5 |
C | 15 | 190 | 2033135 | 48219.1 | 103 | 100 | 42.2 |
C | 15 | 180 | 2019749 | 47901.61 | 103 | 100 | 42.2 |
C | 1 | 44 | 1255462 | 29774.41 | 103 | 100 | 42.2 |
D | 15 | 40 | 2884888 | 21330.84 | 410 | 394 | 135.2 |
D | 15 | 168 | 2316357 | 17126.55 | 410 | 394 | 135.2 |
D | 7 | 61 | 2290950 | 16938.67 | 410 | 394 | 135.2 |
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 |  |