Observation information
- date-obs: 2024-12-12
- time-obs: 13:36:08.315600000
- date-end: 2024-12-12
- time-end: 15:35:29.294700000
- obs_id: A13_037T01_9000006440
- exposure: 294.668868661
- 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_49802cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49802cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,271,082,240 | 53,507,520 |
Size | 1.2 GB
| 51.0 MB
|
Events in quadrant A | 18,242,173 | 256,693 |
Events in quadrant B | 5,084,625 | 712,538 |
Events in quadrant C | 5,586,210 | 2,187 |
Events in quadrant D | 17,582,224 | 139,935 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 59149 | 0 |
B | 0 | 20016 | 0 |
C | 0 | 21811 | 0 |
D | 0 | 56997 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7161 | 6702 | 93.590281% |
B | 7161 | 347 | 4.845692% |
C | 7161 | 7161 | 100.000000% |
D | 7161 | 7136 | 99.650887% |
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 | 7160 | 7160 | 6549 | 6549 | 91.47% | 91.47% |  |
B | 7161 | 7161 | 275 | 275 | 3.84% | 3.84% |  |
C | 7160 | 7160 | 11 | 11 | 0.15% | 0.15% |  |
D | 7160 | 7160 | 6775 | 6775 | 94.62% | 94.62% |  |
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 | 10930025 | 99379.07 | 311 | 297 | 110.0 |
A | 4 | 204 | 1008600 | 9168.04 | 311 | 297 | 110.0 |
A | 12 | 50 | 974002 | 8853.46 | 311 | 297 | 110.0 |
B | 1 | 255 | 409830 | 2586.98 | 743 | 720 | 158.1 |
B | 1 | 239 | 351778 | 2219.89 | 743 | 720 | 158.1 |
B | 2 | 176 | 326865 | 2062.35 | 743 | 720 | 158.1 |
C | 15 | 147 | 4562611 | 602583.73 | 8 | 7 | 7.6 |
C | 15 | 174 | 178264 | 23542.43 | 8 | 7 | 7.6 |
C | 15 | 197 | 175291 | 23149.78 | 8 | 7 | 7.6 |
D | 15 | 168 | 4951184 | 60365.3 | 197 | 186 | 82.0 |
D | 7 | 61 | 2441751 | 29768.91 | 197 | 186 | 82.0 |
D | 7 | 126 | 1669726 | 20355.95 | 197 | 186 | 82.0 |
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 |  |