Observation information
- date-obs: 2024-09-23
- time-obs: 07:09:47.501700000
- date-end: 2024-09-23
- time-end: 09:29:33.495100000
- obs_id: A13_037T01_9000006436
- exposure: 7908.71108937
- 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_9000006436_48611cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48611cztM0_level2_quad_clean.evt
|
Size (bytes) | 554,204,160 | 129,476,160 |
Size | 528.5 MB
| 123.5 MB
|
Events in quadrant A | 8,449,478 | 822,314 |
Events in quadrant B | 3,846,862 | 883,636 |
Events in quadrant C | 3,588,307 | 859,911 |
Events in quadrant D | 3,979,426 | 771,796 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30943 | 0 |
B | 0 | 17580 | 0 |
C | 0 | 17287 | 0 |
D | 0 | 18258 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 168 | 0 |
B | 0 | 168 | 0 |
C | 0 | 168 | 0 |
D | 0 | 168 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8386 | 481 | 5.735750% |
B | 8386 | 197 | 2.349153% |
C | 8387 | 17 | 0.202695% |
D | 8387 | 42 | 0.500775% |
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 | 8386 | 8386 | 121 | 121 | 1.44% | 1.44% | |
B | 8386 | 8386 | 10 | 10 | 0.12% | 0.12% | |
C | 8387 | 8387 | 0 | 0 | 0.00% | 0.00% | |
D | 8387 | 8387 | 20 | 20 | 0.24% | 0.24% | |
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 | 4435244 | 23040.47 | 917 | 895 | 192.5 |
A | 13 | 248 | 446736 | 2316.55 | 917 | 895 | 192.5 |
A | 13 | 254 | 14352 | 69.92 | 917 | 895 | 192.5 |
B | 5 | 255 | 72522 | 386.87 | 929 | 896 | 185.1 |
B | 12 | 16 | 45803 | 242.56 | 929 | 896 | 185.1 |
B | 0 | 197 | 35582 | 187.35 | 929 | 896 | 185.1 |
C | 12 | 250 | 10452 | 43.92 | 914 | 915 | 217.1 |
C | 14 | 254 | 8079 | 32.99 | 914 | 915 | 217.1 |
C | 3 | 233 | 6930 | 27.7 | 914 | 915 | 217.1 |
D | 2 | 165 | 234988 | 1034.17 | 904 | 872 | 226.4 |
D | 10 | 199 | 182536 | 802.47 | 904 | 872 | 226.4 |
D | 2 | 234 | 46762 | 202.71 | 904 | 872 | 226.4 |
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 | |