## Station TWR2

Last observation: May 12, 2008

*collections*Photos (54)*assignment*Field Logs (49)*scatter_plot*Quality Control Data*wb_sunny*Weather*description*NGS Datasheets

This station is not in any other networks.

## NA-fixed

### Plots

### Downloads

### Velocities

Velocity (mm/yr) | Velocity standard deviation (mm/yr) | Last observation | Intercept (mm) | Intercept standard deviation (mm) | |
---|---|---|---|---|---|

North | 22.72 | 0.63 | 2008-05-12 | -259.28 | 1.82 |

East | -19.92 | 0.63 | 2008-05-12 | 224.23 | 1.82 |

Up | 1.93 | 1.90 | 2008-05-12 | -25.16 | 5.46 |

### Offsets

Decimal date | N offset (mm) | N uncertainty (mm) | E offset (mm) | E uncertainty (mm) | U offset (mm) | U uncertainty (mm) | Type | Earthquake magnitude | Earthquake information | Distance from epicenter (km) | |
---|---|---|---|---|---|---|---|---|---|---|---|

2004-09-28 | 2004.74196 | -0.08 | 5.21 | -4.15 | 5.21 | -3.43 | 15.63 | earthquake | 6 | nc30228270 | 48.3 |

### Noise

White noise (mm) | Amplitude of first power law (mm/yr^(n/4))_{1} | n (spectral index of first power law)_{1} | Lower frequency limit for band-pass (BP) filtered noise (cycle/year) | Upper frequency limit for band-pass (BP) filtered noise (cycle/year) | Number of poles for BP filtered noise | Amplitude of BP filtered noise (mm) | n (spectral index of second power law)_{2} | Amplitude of second power law (mm/yr^(n/4))_{2} | |
---|---|---|---|---|---|---|---|---|---|

North | 2.00 | 1.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 2.00 |

East | 2.00 | 1.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 2.00 |

Up | 6.00 | 3.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 6.00 |

### Post-seismic

Decimal date | N log amplitude (mm) | N log amplitude standard deviation (mm) | N time constant (years) | E log amplitude (mm) | E log amplitude standard deviation (mm) | E time constant (years) | U log amplitude (mm) | U log amplitude standard deviation (mm) | U time constant (years) | |
---|---|---|---|---|---|---|---|---|---|---|

2004-09-29 | 2004.7447 | 0.37 | 1.57 | 0.0001 | 1.82 | 1.57 | 0.0001 | 1.46 | 4.71 | 0.0001 |

## ITRF2008

### Plots

### Downloads

### Velocities

Velocity (mm/yr) | Velocity standard deviation (mm/yr) | Last observation | Intercept (mm) | Intercept standard deviation (mm) | |
---|---|---|---|---|---|

North | 11.53 | 0.63 | 2008-05-12 | -131.53 | 1.82 |

East | -32.70 | 0.63 | 2008-05-12 | 368.14 | 1.82 |

Up | 0.14 | 1.90 | 2008-05-12 | -9.69 | 5.46 |

### Offsets

Decimal date | N offset (mm) | N uncertainty (mm) | E offset (mm) | E uncertainty (mm) | U offset (mm) | U uncertainty (mm) | Type | Earthquake magnitude | Earthquake information | Distance from epicenter (km) | |
---|---|---|---|---|---|---|---|---|---|---|---|

2004-09-28 | 2004.74196 | -1.34 | 5.21 | -1.5 | 5.21 | -5.09 | 15.63 | earthquake | 6 | nc30228270 | 48.3 |

### Noise

White noise (mm) | Amplitude of first power law (mm/yr^(n/4))_{1} | n (spectral index of first power law)_{1} | Lower frequency limit for band-pass (BP) filtered noise (cycle/year) | Upper frequency limit for band-pass (BP) filtered noise (cycle/year) | Number of poles for BP filtered noise | Amplitude of BP filtered noise (mm) | n (spectral index of second power law)_{2} | Amplitude of second power law (mm/yr^(n/4))_{2} | |
---|---|---|---|---|---|---|---|---|---|

North | 2.00 | 1.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 2.00 |

East | 2.00 | 1.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 2.00 |

Up | 6.00 | 3.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 6.00 |

### Post-seismic

Decimal date | N log amplitude (mm) | N log amplitude standard deviation (mm) | N time constant (years) | E log amplitude (mm) | E log amplitude standard deviation (mm) | E time constant (years) | U log amplitude (mm) | U log amplitude standard deviation (mm) | U time constant (years) | |
---|---|---|---|---|---|---|---|---|---|---|

2004-09-29 | 2004.7447 | 0.58 | 1.57 | 0.0001 | 1.44 | 1.57 | 0.0001 | 4.29 | 4.71 | 0.0001 |

## Filtered

### Plots

### Downloads

### Velocities

Velocity (mm/yr) | Velocity standard deviation (mm/yr) | Last observation | Intercept (mm) | Intercept standard deviation (mm) | |
---|---|---|---|---|---|

North | 20.59 | 1.20 | 2008-05-12 | -75.03 | 1.41 |

East | -18.79 | 1.20 | 2008-05-12 | 66.34 | 1.41 |

Up | 0.32 | 3.61 | 2008-05-12 | -6.45 | 4.24 |

### Offsets

Decimal date | N offset (mm) | N uncertainty (mm) | E offset (mm) | E uncertainty (mm) | U offset (mm) | U uncertainty (mm) | Type | Earthquake magnitude | Earthquake information | Distance from epicenter (km) | |
---|---|---|---|---|---|---|---|---|---|---|---|

2004-09-28 | 2004.74196 | 6.66 | 5.22 | -0.58 | 5.22 | -18.28 | 15.67 | earthquake | 6 | nc30228270 | 48.3 |

### Noise

White noise (mm) | Amplitude of first power law (mm/yr^(n/4))_{1} | n (spectral index of first power law)_{1} | Lower frequency limit for band-pass (BP) filtered noise (cycle/year) | Upper frequency limit for band-pass (BP) filtered noise (cycle/year) | Number of poles for BP filtered noise | Amplitude of BP filtered noise (mm) | n (spectral index of second power law)_{2} | Amplitude of second power law (mm/yr^(n/4))_{2} | |
---|---|---|---|---|---|---|---|---|---|

North | 2.00 | 1.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 2.00 |

East | 2.00 | 1.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 2.00 |

Up | 6.00 | 3.00 | 1.00 | 0.50000 | 2.00000 | 1 | 0.000 | 2.00 | 6.00 |

### Post-seismic

Decimal date | N log amplitude (mm) | N log amplitude standard deviation (mm) | N time constant (years) | E log amplitude (mm) | E log amplitude standard deviation (mm) | E time constant (years) | U log amplitude (mm) | U log amplitude standard deviation (mm) | U time constant (years) | |
---|---|---|---|---|---|---|---|---|---|---|

2004-09-29 | 2004.7447 | 0.39 | 1.77 | 0.0001 | 0.19 | 1.77 | 0.0001 | 6.8 | 5.31 | 0.0001 |

These results are preliminary. The station positions are unchecked and should not be used for any engineering applications. There may be errors in the antenna heights. The velocities are very dependent on the length of the span of observations. The presence of outliers (errant observations) sometimes contaminates the velocities.