[Proj] Campo Inchauspe towgs84 parameters?

[Markus Neteler]

Dear list members,

we try to figure out the Campo Inchauspe to WGS 84 parameters to
reproject LANDSAT7 data from CONAE:

gdalinfo L71229083_08320020426_HTM.FST
Driver: FAST/EOSAT FAST Format
Size is 6920, 5960
Coordinate System is:
PROJCS["unnamed",
    GEOGCS["WGS 84",
        DATUM["WGS_1984",
            SPHEROID["WGS 84",6378137,298.257223563,
                AUTHORITY["EPSG","7030"]],
            TOWGS84[0,0,0,0,0,0,0],
            AUTHORITY["EPSG","6326"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9108"]],
        AXIS["Lat",NORTH],
        AXIS["Long",EAST],
        AUTHORITY["EPSG","4326"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-66],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",10002288.3],
    UNIT["Meter",1]]
GeoTransform =
  548152.569386061, 29.49069590981356, -5.504468031548917
  6435853.497547253, -5.504408151466975, -29.49068635677127
Metadata:
  ACQUISITION_DATE=20020426
  SATELLITE=LANDSAT7
  SENSOR=ETM+
  BIAS1=0.000000000000000
  GAIN1=0.066823529411765
  BIAS2=3.200000000000000
  GAIN2=0.037058823529412
Corner Coordinates:
Upper Left  (  548152.569, 6435853.498) ( 65d29'21.08"W, 32d13'14.35"S)
Lower Left  (  515345.940, 6260089.007) ( 65d50'3.36"W, 33d48'23.03"S)
Upper Right (  752228.185, 6397762.993) ( 63d18'55.40"W, 32d32'11.40"S)
Lower Right (  719421.556, 6221998.502) ( 63d37'17.87"W, 34d 7'36.72"S)
Center      (  633787.063, 6328926.000) ( 64d33'56.11"W, 33d10'39.39"S)
Band 1 Block=6920x1 Type=Byte, ColorInterp=Undefined
Band 2 Block=6920x1 Type=Byte, ColorInterp=Undefined

The LANDSAT7 header does not contain the towgs84 parameters.

So I was looking at the EPSG 6.4/6.8 SQL databases which do contain these
parameters:

epsg_v68: Query Results
coord_op_name   coord_op_method_name    parameter_name  sort_order      parameter_value unit_of_meas_name       area_name
Campo Inchauspe to WGS 84 (1)   Geocentric translations X-axis translation
1       -148    metre   Argentina
Campo Inchauspe to WGS 84 (1)   Geocentric translations Y-axis translation
2       136     metre   Argentina
Campo Inchauspe to WGS 84 (1)   Geocentric translations Z-axis translation
3       90      metre   Argentina

However, we found different parameters mentioned in the Grids & Datums column
"THE REPUBLIC OF ARGENTINA" (12/1999), at
http://www.asprs.org/resources/grids/12-99-argentina.pdf

It is correct to use the parameters of EPSG?
If so, would it be possible to add them to the PROJ4 EPSG file?

Thanks in advance

 Markus Neteler