Observation information
- date-obs: 2024-09-22
- time-obs: 05:08:59.580900000
- date-end: 2024-09-22
- time-end: 07:22:15.574600000
- obs_id: A13_037T01_9000006436
- exposure: 6885.07489181
- 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_48595cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48595cztM0_level2_quad_clean.evt
|
Size (bytes) | 512,876,160 | 113,889,600 |
Size | 489.1 MB
| 108.6 MB
|
Events in quadrant A | 7,443,682 | 715,780 |
Events in quadrant B | 4,013,696 | 769,223 |
Events in quadrant C | 3,341,267 | 759,726 |
Events in quadrant D | 3,599,370 | 678,275 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27486 | 2 |
B | 0 | 17365 | 2 |
C | 0 | 15926 | 2 |
D | 0 | 16765 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 4 | 0 |
B | 0 | 4 | 0 |
C | 0 | 5 | 0 |
D | 0 | 5 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 154 | 0 |
B | 0 | 154 | 0 |
C | 0 | 154 | 0 |
D | 0 | 154 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7555 | 585 | 7.743216% |
B | 7555 | 463 | 6.128392% |
C | 7554 | 252 | 3.335981% |
D | 7554 | 318 | 4.209690% |
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 | 7705 | 7557 | 3 | 3 | 0.04% | 0.04% | |
B | 7705 | 7557 | 29 | 29 | 0.38% | 0.38% | |
C | 7704 | 7556 | 9 | 9 | 0.12% | 0.12% | |
D | 7704 | 7556 | 52 | 52 | 0.67% | 0.69% | |
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 | 4199110 | 23946.36 | 832 | 811 | 175.3 |
A | 13 | 248 | 28037 | 155.29 | 832 | 811 | 175.3 |
A | 13 | 254 | 14233 | 76.56 | 832 | 811 | 175.3 |
B | 12 | 16 | 614067 | 3590.86 | 844 | 813 | 170.8 |
B | 0 | 197 | 26724 | 151.72 | 844 | 813 | 170.8 |
B | 0 | 183 | 26520 | 150.53 | 844 | 813 | 170.8 |
C | 12 | 249 | 28848 | 140.21 | 842 | 843 | 199.7 |
C | 12 | 250 | 24119 | 116.54 | 842 | 843 | 199.7 |
C | 14 | 67 | 5836 | 25.0 | 842 | 843 | 199.7 |
D | 2 | 249 | 247445 | 1168.08 | 836 | 805 | 211.1 |
D | 13 | 171 | 136771 | 643.93 | 836 | 805 | 211.1 |
D | 2 | 234 | 36640 | 169.71 | 836 | 805 | 211.1 |
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 |
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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 | |