Observation information
- date-obs: 2024-05-01
- time-obs: 06:03:48.349100000
- date-end: 2024-05-01
- time-end: 08:05:42.342500000
- obs_id: A13_037T01_9000006212
- exposure: 5866.52966982
- 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_9000006212_46460cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006212_46460cztM0_level2_quad_clean.evt
|
Size (bytes) | 453,009,600 | 104,869,440 |
Size | 432.0 MB
| 100.0 MB
|
Events in quadrant A | 5,745,386 | 702,755 |
Events in quadrant B | 3,102,706 | 736,840 |
Events in quadrant C | 3,221,167 | 682,038 |
Events in quadrant D | 4,223,911 | 626,026 |
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 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21295 | 1 |
B | 0 | 13334 | 1 |
C | 0 | 13976 | 1 |
D | 0 | 16931 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6129 | 179 | 2.920542% |
B | 6129 | 90 | 1.468429% |
C | 6129 | 149 | 2.431065% |
D | 6130 | 171 | 2.789560% |
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 | 7314 | 6129 | 8 | 8 | 0.11% | 0.13% | |
B | 7314 | 6130 | 30 | 30 | 0.41% | 0.49% | |
C | 7314 | 6130 | 117 | 117 | 1.60% | 1.91% | |
D | 7315 | 6131 | 150 | 150 | 2.05% | 2.45% | |
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 | 2913748 | 20255.44 | 700 | 687 | 143.8 |
A | 15 | 235 | 68227 | 469.63 | 700 | 687 | 143.8 |
A | 2 | 79 | 20990 | 141.17 | 700 | 687 | 143.8 |
B | 10 | 128 | 122015 | 890.97 | 702 | 680 | 136.2 |
B | 5 | 172 | 79977 | 582.28 | 702 | 680 | 136.2 |
B | 5 | 32 | 37811 | 272.66 | 702 | 680 | 136.2 |
C | 14 | 254 | 485736 | 3053.26 | 677 | 682 | 158.9 |
C | 3 | 233 | 51541 | 320.14 | 677 | 682 | 158.9 |
C | 2 | 14 | 32771 | 201.99 | 677 | 682 | 158.9 |
D | 8 | 176 | 827854 | 4882.58 | 681 | 662 | 169.4 |
D | 1 | 52 | 572786 | 3377.02 | 681 | 662 | 169.4 |
D | 13 | 249 | 50278 | 292.86 | 681 | 662 | 169.4 |
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 | |