Observation information
- date-obs: 2024-12-09
- time-obs: 09:08:52.197300000
- date-end: 2024-12-09
- time-end: 11:08:53.175300000
- obs_id: A13_037T01_9000006440
- exposure: 5.51940226555
- 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_49755cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49755cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,255,429,440 | 43,787,520 |
Size | 1.2 GB
| 41.8 MB
|
Events in quadrant A | 15,467,036 | 62,393 |
Events in quadrant B | 5,171,935 | 635,625 |
Events in quadrant C | 10,653,029 | 694 |
Events in quadrant D | 14,680,968 | 176,365 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 50259 | 8 |
B | 0 | 19761 | 1 |
C | 0 | 36134 | 1 |
D | 0 | 48042 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6460 | 6018 | 93.157895% |
B | 6460 | 523 | 8.095975% |
C | 6461 | 6458 | 99.953568% |
D | 6461 | 4714 | 72.960842% |
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 | 7200 | 6460 | 5913 | 5913 | 82.12% | 91.53% |  |
B | 7200 | 6460 | 316 | 316 | 4.39% | 4.89% |  |
C | 7200 | 6460 | 1157 | 1157 | 16.07% | 17.91% |  |
D | 7201 | 6462 | 4699 | 4699 | 65.25% | 72.72% |  |
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 | 6598732 | 54784.79 | 435 | 422 | 120.4 |
A | 7 | 64 | 1275398 | 10585.94 | 435 | 422 | 120.4 |
A | 3 | 99 | 1037826 | 8613.41 | 435 | 422 | 120.4 |
B | 10 | 28 | 750250 | 5067.48 | 687 | 666 | 147.9 |
B | 4 | 206 | 447312 | 3019.5 | 687 | 666 | 147.9 |
B | 4 | 21 | 322392 | 2174.99 | 687 | 666 | 147.9 |
C | 15 | 180 | 4520229 | 153173.75 | 73 | 70 | 29.5 |
C | 15 | 190 | 1474245 | 49955.08 | 73 | 70 | 29.5 |
C | 15 | 163 | 923576 | 31294.67 | 73 | 70 | 29.5 |
D | 12 | 6 | 2474087 | 16755.75 | 461 | 440 | 147.6 |
D | 15 | 168 | 2389957 | 16185.88 | 461 | 440 | 147.6 |
D | 15 | 185 | 1934257 | 13099.1 | 461 | 440 | 147.6 |
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 |  |