Observation information
- date-obs: 2024-12-10
- time-obs: 23:19:44.756900000
- date-end: 2024-12-11
- time-end: 01:23:27.732100000
- obs_id: A13_037T01_9000006440
- exposure: 131.380624592
- 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_49779cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49779cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,105,750,080 | 52,116,480 |
Size | 1.0 GB
| 49.7 MB
|
Events in quadrant A | 8,802,814 | 455,524 |
Events in quadrant B | 4,312,616 | 638,720 |
Events in quadrant C | 11,262,394 | 13,829 |
Events in quadrant D | 16,060,723 | 25,005 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30659 | 1 |
B | 0 | 17078 | 1 |
C | 0 | 37915 | 1 |
D | 0 | 52105 | 3 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6368 | 1800 | 28.266332% |
B | 6369 | 279 | 4.380593% |
C | 6369 | 6261 | 98.304286% |
D | 6368 | 6174 | 96.953518% |
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 | 7423 | 6368 | 1485 | 1485 | 20.01% | 23.32% |  |
B | 7424 | 6370 | 160 | 160 | 2.16% | 2.51% |  |
C | 7423 | 6367 | 2136 | 2136 | 28.78% | 33.55% |  |
D | 7422 | 6367 | 5450 | 5450 | 73.43% | 85.60% |  |
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 | 7 | 64 | 1907480 | 12580.61 | 595 | 578 | 151.6 |
A | 15 | 63 | 759162 | 5004.69 | 595 | 578 | 151.6 |
A | 8 | 8 | 589944 | 3888.29 | 595 | 578 | 151.6 |
B | 4 | 171 | 596394 | 4137.85 | 674 | 653 | 144.0 |
B | 10 | 128 | 220056 | 1523.91 | 674 | 653 | 144.0 |
B | 4 | 206 | 153454 | 1061.31 | 674 | 653 | 144.0 |
C | 15 | 147 | 5048887 | 159100.94 | 69 | 66 | 31.7 |
C | 15 | 148 | 3193045 | 100618.73 | 69 | 66 | 31.7 |
C | 15 | 233 | 629433 | 19832.92 | 69 | 66 | 31.7 |
D | 15 | 142 | 4135849 | 46915.63 | 274 | 261 | 88.1 |
D | 8 | 129 | 3944256 | 44742.13 | 274 | 261 | 88.1 |
D | 15 | 168 | 1735417 | 19684.25 | 274 | 261 | 88.1 |
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 |
 |
 |
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 |  |