Observation information
- date-obs: 2024-12-12
- time-obs: 20:26:58.239900000
- date-end: 2024-12-12
- time-end: 22:32:39.213800000
- obs_id: A13_037T01_9000006440
- exposure: 334.577475488
- 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_49806cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49806cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,073,721,600 | 57,553,920 |
Size | 1024.0 MB
| 54.9 MB
|
Events in quadrant A | 6,653,803 | 549,020 |
Events in quadrant B | 4,626,662 | 664,264 |
Events in quadrant C | 12,165,477 | 37,574 |
Events in quadrant D | 15,784,545 | 28,014 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24325 | 1 |
B | 0 | 18357 | 1 |
C | 0 | 40774 | 1 |
D | 0 | 51350 | 6 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6651 | 826 | 12.419185% |
B | 6651 | 149 | 2.240265% |
C | 6651 | 6315 | 94.948128% |
D | 6651 | 6403 | 96.271237% |
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 | 7541 | 6651 | 718 | 718 | 9.52% | 10.80% |  |
B | 7541 | 6651 | 104 | 104 | 1.38% | 1.56% |  |
C | 7540 | 6650 | 2929 | 2929 | 38.85% | 44.05% |  |
D | 7540 | 6650 | 5906 | 5906 | 78.33% | 88.81% |  |
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 | 847454 | 5075.04 | 669 | 654 | 166.9 |
A | 15 | 63 | 736647 | 4410.95 | 669 | 654 | 166.9 |
A | 4 | 204 | 292161 | 1747.06 | 669 | 654 | 166.9 |
B | 5 | 172 | 914244 | 6151.14 | 699 | 675 | 148.5 |
B | 5 | 185 | 271546 | 1823.79 | 699 | 675 | 148.5 |
B | 10 | 28 | 150865 | 1011.24 | 699 | 675 | 148.5 |
C | 15 | 147 | 6508006 | 136844.3 | 129 | 126 | 47.6 |
C | 1 | 44 | 2211904 | 46508.11 | 129 | 126 | 47.6 |
C | 15 | 197 | 919775 | 19337.9 | 129 | 126 | 47.6 |
D | 7 | 61 | 5672726 | 49477.63 | 323 | 308 | 114.6 |
D | 15 | 168 | 1931230 | 16842.46 | 323 | 308 | 114.6 |
D | 8 | 176 | 1408550 | 12283.38 | 323 | 308 | 114.6 |
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 |  |