Observation information
- date-obs: 2017-11-27
- time-obs: 10:45:52.833100000
- date-end: 2017-11-27
- time-end: 12:47:16.838400000
- obs_id: G08_075T01_9000001726
- exposure: 4839.20454749
- sourceid: Cygnus X-1
- observer: ravibt
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_075T01_9000001726_11713cztM0_level2.evt
| modeM0/AS1G08_075T01_9000001726_11713cztM0_level2_quad_clean.evt
|
| Size (bytes) | 539,974,080 | 95,607,360 |
| Size | 515.0 MB
| 91.2 MB
|
| Events in quadrant A | 4,176,042 | 610,655 |
| Events in quadrant B | 4,595,787 | 602,500 |
| Events in quadrant C | 3,246,018 | 607,045 |
| Events in quadrant D | 3,855,556 | 582,463 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16930 | 3 |
| B | 0 | 18107 | 2 |
| C | 0 | 14718 | 2 |
| D | 0 | 16081 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7069 | 199 | 2.815108% |
| B | 7069 | 450 | 6.365823% |
| C | 7069 | 87 | 1.230726% |
| D | 7069 | 144 | 2.037063% |
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 | 7285 | 7072 | 9 | 9 | 0.12% | 0.13% |  |
| B | 7285 | 7072 | 173 | 173 | 2.37% | 2.45% |  |
| C | 7285 | 7072 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7285 | 7072 | 51 | 51 | 0.70% | 0.72% |  |
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 | 8 | 15 | 528662 | 2991.77 | 862 | 843 | 176.4 |
| A | 1 | 162 | 117839 | 663.15 | 862 | 843 | 176.4 |
| A | 1 | 178 | 61060 | 341.32 | 862 | 843 | 176.4 |
| B | 4 | 239 | 791672 | 4823.51 | 845 | 824 | 164.0 |
| B | 10 | 245 | 188406 | 1144.09 | 845 | 824 | 164.0 |
| B | 3 | 64 | 112666 | 682.14 | 845 | 824 | 164.0 |
| C | 13 | 61 | 6147 | 27.28 | 831 | 835 | 194.7 |
| C | 12 | 4 | 3319 | 12.76 | 831 | 835 | 194.7 |
| C | 3 | 202 | 1958 | 5.77 | 831 | 835 | 194.7 |
| D | 4 | 95 | 237078 | 1173.04 | 833 | 812 | 201.4 |
| D | 1 | 52 | 203025 | 1003.97 | 833 | 812 | 201.4 |
| D | 8 | 195 | 148168 | 731.61 | 833 | 812 | 201.4 |
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 |  |