Observation information
- date-obs: 2018-06-01
- time-obs: 03:53:13.977100000
- date-end: 2018-06-01
- time-end: 05:26:15.972300000
- obs_id: G08_025T01_9000002130
- exposure: 2572.56673706
- sourceid: Cyg X-2
- observer: sudip
- ra_pnt: 326.1714
- dec_pnt: 38.32142
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_025T01_9000002130_14462cztM0_level2.evt
| modeM0/AS1G08_025T01_9000002130_14462cztM0_level2_quad_clean.evt
|
| Size (bytes) | 313,323,840 | 55,575,360 |
| Size | 298.8 MB
| 53.0 MB
|
| Events in quadrant A | 2,219,567 | 348,138 |
| Events in quadrant B | 2,285,226 | 340,087 |
| Events in quadrant C | 2,272,159 | 335,657 |
| Events in quadrant D | 2,393,168 | 330,389 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10929 | 1297 |
| B | 0 | 11528 | 1657 |
| C | 0 | 10971 | 1403 |
| D | 0 | 11734 | 1367 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 10 |
| B | 0 | 104 | 8 |
| C | 0 | 104 | 10 |
| D | 0 | 104 | 10 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4694 | 8 | 0.170430% |
| B | 4636 | 19 | 0.409836% |
| C | 4659 | 10 | 0.214638% |
| D | 4686 | 64 | 1.365770% |
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 | 5085 | 4809 | 1 | 1 | 0.02% | 0.02% |  |
| B | 4982 | 4744 | 5 | 5 | 0.10% | 0.11% |  |
| C | 5060 | 4780 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5083 | 4801 | 66 | 66 | 1.30% | 1.37% |  |
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 | 12 | 189 | 42052 | 362.42 | 560 | 549 | 114.5 |
| A | 4 | 2 | 9321 | 76.6 | 560 | 549 | 114.5 |
| A | 12 | 96 | 8050 | 65.5 | 560 | 549 | 114.5 |
| B | 0 | 189 | 58261 | 552.66 | 547 | 533 | 104.5 |
| B | 0 | 219 | 27830 | 261.33 | 547 | 533 | 104.5 |
| B | 10 | 252 | 20241 | 188.67 | 547 | 533 | 104.5 |
| C | 3 | 233 | 199060 | 1624.43 | 529 | 532 | 122.2 |
| C | 10 | 22 | 9081 | 69.95 | 529 | 532 | 122.2 |
| C | 13 | 61 | 3717 | 26.06 | 529 | 532 | 122.2 |
| D | 10 | 199 | 239517 | 1692.89 | 529 | 518 | 141.2 |
| D | 2 | 120 | 45948 | 321.79 | 529 | 518 | 141.2 |
| D | 2 | 152 | 44278 | 309.96 | 529 | 518 | 141.2 |
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 |  |