Errata for 20040928 17:15 UTC Parkfield, CA earthquake

Changes to data on 10/13/2004:
1) Notice of longer record duration for PGDFU time series.

2) Notice of correction to station code in peaks table 20040928_1715_peaks.xls (and .html):
IFU has been corrected to JFU

3) Notice of change of station codes in GEOS Parkfield Array

Three of the station codes previously used for accelerometer records from the GEOS Parkfield 
Array have been revised.  These changes are:

Old code	New code	Station name

PGFDD	PGFFU	Froelich
PGRDD	PGRFU	Red Hills
PGVDD	PGVFU	Vineyard Canyon

The data files being served from the NSMP website have been revised in accord with the 
new station codes.

Please note that these changes apply only to data from accelerometers (uncorrected acceleration, 
corrected acceleration, velocity, and displacement, and response and Fourier amplitude spectra).  
In the future, station codes of the form PG?DD for GEOS recorders in the Parkfield Array will be 
used to designate records from dilatometers.

Changes to data on 07/20/2005:
1) GEOS station JFU (Joaquin Canyon), sensor orientations have been corrected in both the peaks table and time series files:
Old orientation  Correct orientation
	UP		UP
	360		21
	90		111