Observation information
- date-obs: 2024-12-13
- time-obs: 01:37:59.175400000
- date-end: 2024-12-13
- time-end: 03:43:59.151800000
- obs_id: A13_037T01_9000006440
- exposure: 342.903385043
- 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_49810cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49810cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,065,640,320 | 59,898,240 |
Size | 1016.3 MB
| 57.1 MB
|
Events in quadrant A | 6,596,841 | 536,745 |
Events in quadrant B | 3,594,083 | 703,462 |
Events in quadrant C | 13,720,324 | 93,523 |
Events in quadrant D | 15,040,253 | 33,929 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 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 | 23926 | 1 |
B | 0 | 14903 | 1 |
C | 0 | 45138 | 1 |
D | 0 | 48986 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6395 | 1179 | 18.436278% |
B | 6396 | 161 | 2.517198% |
C | 6396 | 5609 | 87.695435% |
D | 6396 | 6129 | 95.825516% |
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 | 7560 | 6395 | 1049 | 1049 | 13.88% | 16.40% |  |
B | 7561 | 6396 | 54 | 54 | 0.71% | 0.84% |  |
C | 7560 | 6395 | 4826 | 4826 | 63.84% | 75.47% |  |
D | 7560 | 6395 | 5769 | 5769 | 76.31% | 90.21% |  |
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 | 1693927 | 9808.47 | 679 | 665 | 172.6 |
A | 15 | 63 | 278178 | 1607.53 | 679 | 665 | 172.6 |
A | 8 | 38 | 277965 | 1606.3 | 679 | 665 | 172.6 |
B | 4 | 206 | 112019 | 722.09 | 724 | 700 | 154.2 |
B | 10 | 44 | 107233 | 691.05 | 724 | 700 | 154.2 |
B | 10 | 28 | 90419 | 581.98 | 724 | 700 | 154.2 |
C | 15 | 197 | 2975974 | 30988.85 | 323 | 319 | 96.0 |
C | 15 | 174 | 2661711 | 27716.07 | 323 | 319 | 96.0 |
C | 15 | 147 | 1921450 | 20006.9 | 323 | 319 | 96.0 |
D | 7 | 61 | 7057604 | 66547.02 | 323 | 310 | 106.0 |
D | 15 | 168 | 1248123 | 11766.3 | 323 | 310 | 106.0 |
D | 7 | 126 | 1054762 | 9943.0 | 323 | 310 | 106.0 |
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 |  |