Observation information
- date-obs: 2024-12-12
- time-obs: 08:24:12.373000000
- date-end: 2024-12-12
- time-end: 10:20:17.351200000
- obs_id: A13_037T01_9000006440
- exposure: 226.332900107
- 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_49799cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49799cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,010,880,000 | 53,847,360 |
Size | 964.1 MB
| 51.4 MB
|
Events in quadrant A | 7,959,597 | 477,969 |
Events in quadrant B | 3,660,046 | 644,224 |
Events in quadrant C | 9,942,109 | 48,028 |
Events in quadrant D | 15,367,774 | 19,259 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 7 | 0 |
B | 0 | 7 | 0 |
C | 0 | 7 | 0 |
D | 0 | 7 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28046 | 3 |
B | 0 | 15341 | 1 |
C | 0 | 33908 | 1 |
D | 0 | 49949 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6314 | 1415 | 22.410516% |
B | 6315 | 191 | 3.024545% |
C | 6315 | 5895 | 93.349169% |
D | 6315 | 6146 | 97.323832% |
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 | 6964 | 6314 | 1144 | 1144 | 16.43% | 18.12% |  |
B | 6965 | 6316 | 81 | 81 | 1.16% | 1.28% |  |
C | 6964 | 6314 | 2207 | 2207 | 31.69% | 34.95% |  |
D | 6964 | 6314 | 5649 | 5649 | 81.12% | 89.47% |  |
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 | 1017744 | 6611.04 | 621 | 606 | 153.9 |
A | 4 | 205 | 588056 | 3818.22 | 621 | 606 | 153.9 |
A | 15 | 63 | 549788 | 3569.49 | 621 | 606 | 153.9 |
B | 10 | 28 | 273346 | 1894.96 | 673 | 652 | 143.9 |
B | 4 | 206 | 163109 | 1128.92 | 673 | 652 | 143.9 |
B | 10 | 247 | 113820 | 786.41 | 673 | 652 | 143.9 |
C | 15 | 147 | 3744445 | 65003.61 | 180 | 177 | 57.6 |
C | 15 | 230 | 1120846 | 19455.75 | 180 | 177 | 57.6 |
C | 15 | 197 | 1096494 | 19032.97 | 180 | 177 | 57.6 |
D | 15 | 106 | 2082875 | 25450.71 | 253 | 242 | 81.8 |
D | 8 | 176 | 2035048 | 24866.24 | 253 | 242 | 81.8 |
D | 7 | 61 | 1790354 | 21875.97 | 253 | 242 | 81.8 |
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 |  |