Observation information
- date-obs: 2024-12-09
- time-obs: 10:52:59.178200000
- date-end: 2024-12-09
- time-end: 12:53:40.155300000
- obs_id: A13_037T01_9000006440
- exposure: 553.67938441
- 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_49756cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49756cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,383,289,920 | 64,036,800 |
Size | 1.3 GB
| 61.1 MB
|
Events in quadrant A | 18,026,534 | 337,195 |
Events in quadrant B | 4,999,545 | 738,154 |
Events in quadrant C | 9,925,037 | 12,099 |
Events in quadrant D | 17,694,043 | 337,427 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 144 | 0 |
B | 0 | 144 | 0 |
C | 0 | 144 | 0 |
D | 0 | 144 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 58518 | 0 |
B | 0 | 19698 | 0 |
C | 0 | 34570 | 0 |
D | 0 | 57533 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7241 | 6875 | 94.945450% |
B | 7242 | 622 | 8.588788% |
C | 7242 | 7242 | 100.000000% |
D | 7242 | 6279 | 86.702568% |
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 | 7240 | 7240 | 6767 | 6767 | 93.47% | 93.47% |  |
B | 7242 | 7242 | 228 | 228 | 3.15% | 3.15% |  |
C | 7241 | 7241 | 131 | 131 | 1.81% | 1.81% |  |
D | 7241 | 7241 | 6290 | 6290 | 86.87% | 86.87% |  |
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 | 5946844 | 52482.27 | 407 | 393 | 113.3 |
A | 0 | 98 | 2757843 | 24336.74 | 407 | 393 | 113.3 |
A | 12 | 50 | 1258920 | 11107.52 | 407 | 393 | 113.3 |
B | 4 | 206 | 413458 | 2390.66 | 799 | 773 | 172.6 |
B | 5 | 185 | 395201 | 2284.9 | 799 | 773 | 172.6 |
B | 4 | 21 | 248319 | 1434.02 | 799 | 773 | 172.6 |
C | 15 | 180 | 3573364 | 139456.7 | 36 | 33 | 25.6 |
C | 15 | 190 | 1550969 | 60528.51 | 36 | 33 | 25.6 |
C | 15 | 181 | 993594 | 38775.79 | 36 | 33 | 25.6 |
D | 15 | 168 | 4052800 | 27248.2 | 446 | 425 | 148.7 |
D | 8 | 129 | 1985617 | 13348.44 | 446 | 425 | 148.7 |
D | 15 | 185 | 1915514 | 12877.07 | 446 | 425 | 148.7 |
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 |  |