Observation information
- date-obs: 2018-04-14
- time-obs: 23:36:35.480000000
- date-end: 2018-04-15
- time-end: 01:55:56.473500000
- obs_id: G08_062T01_9000002038
- exposure: 4922.59561087
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_062T01_9000002038_13764cztM0_level2.evt
| modeM0/AS1G08_062T01_9000002038_13764cztM0_level2_quad_clean.evt
|
| Size (bytes) | 511,822,080 | 114,108,480 |
| Size | 488.1 MB
| 108.8 MB
|
| Events in quadrant A | 3,454,947 | 751,220 |
| Events in quadrant B | 3,537,861 | 756,230 |
| Events in quadrant C | 3,228,028 | 787,181 |
| Events in quadrant D | 4,855,190 | 724,340 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14246 | 3 |
| B | 0 | 14720 | 2 |
| C | 0 | 13519 | 2 |
| D | 0 | 18747 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6259 | 90 | 1.437929% |
| B | 6259 | 100 | 1.597699% |
| C | 6259 | 41 | 0.655057% |
| D | 6259 | 403 | 6.438728% |
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 | 7585 | 6261 | 48 | 48 | 0.63% | 0.77% |  |
| B | 7585 | 6261 | 26 | 26 | 0.34% | 0.42% |  |
| C | 7585 | 6261 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7585 | 6261 | 276 | 276 | 3.64% | 4.41% |  |
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 | 9 | 143 | 301956 | 1835.73 | 809 | 795 | 164.1 |
| A | 1 | 162 | 19994 | 117.03 | 809 | 795 | 164.1 |
| A | 0 | 226 | 7559 | 41.23 | 809 | 795 | 164.1 |
| B | 0 | 219 | 230851 | 1518.05 | 816 | 799 | 151.5 |
| B | 4 | 80 | 33935 | 218.66 | 816 | 799 | 151.5 |
| B | 0 | 189 | 22954 | 146.2 | 816 | 799 | 151.5 |
| C | 3 | 233 | 75182 | 397.97 | 806 | 815 | 186.9 |
| C | 6 | 253 | 8148 | 39.24 | 806 | 815 | 186.9 |
| C | 13 | 61 | 5819 | 26.78 | 806 | 815 | 186.9 |
| D | 5 | 222 | 818725 | 4342.36 | 775 | 755 | 188.4 |
| D | 1 | 52 | 612225 | 3246.11 | 775 | 755 | 188.4 |
| D | 13 | 249 | 268415 | 1420.93 | 775 | 755 | 188.4 |
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 |  |