Observation information
- date-obs: 2024-12-15
- time-obs: 12:47:20.502900000
- date-end: 2024-12-15
- time-end: 17:09:24.455400000
- obs_id: A13_037T01_9000006440
- exposure: 2102.62723958
- 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_49848cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49848cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,782,759,680 | 119,946,240 |
Size | 2.6 GB
| 114.4 MB
|
Events in quadrant A | 32,842,312 | 705,927 |
Events in quadrant B | 10,899,827 | 1,500,349 |
Events in quadrant C | 25,548,018 | 126,038 |
Events in quadrant D | 32,523,738 | 209,861 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2 | 0 |
B | 0 | 2 | 0 |
C | 0 | 2 | 0 |
D | 0 | 2 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 314 | 0 |
B | 0 | 314 | 0 |
C | 0 | 314 | 0 |
D | 0 | 314 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108216 | 0 |
B | 0 | 43352 | 0 |
C | 0 | 86673 | 0 |
D | 0 | 107147 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 15480 | 10820 | 69.896641% |
B | 15480 | 1116 | 7.209302% |
C | 15480 | 15213 | 98.275194% |
D | 15479 | 15479 | 100.000000% |
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 | 15724 | 15479 | 10112 | 10112 | 64.31% | 65.33% |  |
B | 15725 | 15481 | 732 | 732 | 4.66% | 4.73% |  |
C | 15724 | 15479 | 4001 | 4001 | 25.45% | 25.85% |  |
D | 15724 | 15479 | 10165 | 10165 | 64.65% | 65.67% |  |
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 | 16211918 | 68120.24 | 931 | 908 | 238.0 |
A | 4 | 4 | 3411888 | 14333.27 | 931 | 908 | 238.0 |
A | 3 | 84 | 2171404 | 9120.64 | 931 | 908 | 238.0 |
B | 0 | 229 | 2414309 | 7154.02 | 1592 | 1537 | 337.3 |
B | 4 | 206 | 528676 | 1563.0 | 1592 | 1537 | 337.3 |
B | 4 | 190 | 311105 | 917.89 | 1592 | 1537 | 337.3 |
C | 1 | 44 | 4653235 | 61895.48 | 179 | 173 | 75.2 |
C | 15 | 147 | 3485001 | 46355.51 | 179 | 173 | 75.2 |
C | 15 | 236 | 2420149 | 32190.75 | 179 | 173 | 75.2 |
D | 8 | 129 | 10614653 | 52731.48 | 325 | 295 | 201.3 |
D | 7 | 61 | 3428288 | 17030.06 | 325 | 295 | 201.3 |
D | 7 | 60 | 1845218 | 9165.46 | 325 | 295 | 201.3 |
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 |  |