TRANSFORMATION OF ROMANIAN STEREO-70, 'MAROSVÁSÁRHELY' STEREO (OLD TRANSYLVANIAN GRID) ,GAUSS-KRÜGER AND UTM COORDINATESViteaz V1.0 Distribute freely - please note all changes to the e-mail below.accuracy ~10 meter, (see the Help page)Edit the cyan cells ONLY. Results are shown by red. The four panels below are independent.from Stereo-70 Easting Northing Section/Zone datum latitude longitude latitude (dms)

input------> 593200 315225 S-42 44.33104 26.16857 44 19to Gauss-Krüger 5433685 4911029 L-35-137-Ab S-42 44.33104 26.16857 44 19to 'Marosvásárhely' Stereo 741937 354559 6276-4 KD1890 44.32997 26.17220 44 19to UTM 433591 4908947 Zone 35 WGS84 44.33075 26.16705 44 19

from Gauss-Krüger Easting Northing Section/Zone datum latitude longitude latitude (dms)input------> 5299806 5160980 L-35-49-Bd S-42 46.55319 24.38949 46 33

to Stereo-70 453191 561657 S-42 46.55319 24.38949 46 33to 'Marosvásárhely' Stereo 600000 600000 5373-3 KD1890 46.55246 24.39304 46 33to UTM 299767 5158796 Zone 35 WGS84 46.55290 24.38790 46 33

from UTM Easting Northing Section/Zone datum latitude longitude latitude (dms)input------> 345014 5095963 Zone 35 WGS84 45.99971 24.99843 45 59

to Stereo-70 500000 500000 S-42 46.00000 25.00000 46 0to 'Marosvásárhely' Stereo 647292 538688 5674-1 KD1890 45.99918 25.00359 45 59to Gauss-Krüger 5345072 5098121 L-35-62-Dd S-42 46.00000 25.00000 46 0

from 'Marosvásárhely' Stereo Easting Northing Section/Zone datum latitude longitude latitude (dms)input------> 600000 600000 5373-3 KD1890 46.55246 24.39304 46 33

to Stereo-70 453191 561657 S-42 46.55319 24.38948 46 33to UTM 299766 5158796 Zone 35 WGS84 46.55290 24.38789 46 33to Gauss-Krüger 5299806 5160980 L-35-49-Bd S-42 46.55319 24.38948 46 33

315225 593200

Compiled by Gábor Timár, Dept. of Geophysics, Eötvös University of Budapest, e-mail: timar@ludens.elte.hu

TRANSFORMATION OF ROMANIAN STEREO-70, 'MAROSVÁSÁRHELY' STEREO (OLD TRANSYLVANIAN GRID) ,GAUSS-KRÜGER AND UTM COORDINATES

The four panels below are independent.latitude (dms) longitude (dms)

51.75 26 10 6.8551.75 26 10 6.8547.88 26 10 19.9250.69 26 10 1.39

latitude (dms) longitude (dms)11.49 24 23 22.1511.49 24 23 22.15

8.85 24 23 34.9510.44 24 23 16.43

latitude (dms) longitude (dms)58.96 24 59 54.35

0.00 24 59 59.9957.04 25 0 12.94

0.00 24 59 59.99

latitude (dms) longitude (dms)8.85 24 23 34.94

11.49 24 23 22.1310.44 24 23 16.4211.49 24 23 22.13

PARAMETER PAGEViteaz V1.0

FILL THE GREEN FIELDS WITH THE SELECTED PARAMETERS.parameters dX dZ dY eX eY eZ kfrom S-42 to WGS84 28 -121 -77 0 0 0 0from S-42 to WGS84 28 -121 -77 0 0 0 0from KD1890 to WGS84 642 -142 530 0 0 0 0

HELP PAGEViteaz V1.0

Usage: The Main Page contains three independent calculator boxes. If you have the coordinates to transforme.g. in Stereo-70, select the box "from Stereo-70", write your Stereo-70 coordinates to the Input cells, andthe resulting Gauss-Krüger and UTM coordinates will appear below.Besides the grid coordinates, geodetic coordinates on the appropriate datum appear. Do not edit them.When you use one selected box, coordinates in the other two boxes won't change.

Method: The software uses the direct and reverse equations of the Stereographic, Gauss-Krüger and UTM projections(find them in the hidden worksheets). Although the Bursa-Wolf equations are used in the datum shift transformations, the rotationparameters are still unknown. Stereo-70 and Gauss-Krüger are interpreted on S-42 (Pulkovo) datum,old Stereo coords are on the Kesztejhegy 1890 datum and UTM coordinates on WGS84 datum. No other interpretations can be set.Concerning the Gauss-Krüger and UTM, the meridians of 0, 6, 12, 18, etc. degrees are real discriminationlines: zone numbers are depending directly on longitudes. E.g. you cannot calculate the UTM Zone 33coordinates of a point situated east of 18 degree in this version.

Parameters: The Bursa-Wolf datum shift parameters can be set in Parameters page. Edit them with caution.Accuracy: The grid equations are accurate to millimeter-order. The Bursa-Wolf method provides

not so good accuracy: thorough all Romania the error can reach ten meters.Requests:

If used, please refer to the following papers:Timár, G., Molnár, G., Păunescu, C, Pendea, F. (2004): Projection and datum parameters of the Transylvanian sheets of the second and third military surveys.

Original title: "A második és harmadik katonai felmérés erdélyi szelvényeinek vetületi és dátumparaméterei"

Please note all of your changes to timar@ludens.elte.hu, along with the modified table.

(in Hungarian, with English summary). Geodézia és Kartográfia 56(5): in press

The Main Page contains three independent calculator boxes. If you have the coordinates to transforme.g. in Stereo-70, select the box "from Stereo-70", write your Stereo-70 coordinates to the Input cells, and

Besides the grid coordinates, geodetic coordinates on the appropriate datum appear. Do not edit them.

The software uses the direct and reverse equations of the Stereographic, Gauss-Krüger and UTM projections(find them in the hidden worksheets). Although the Bursa-Wolf equations are used in the datum shift transformations, the rotationparameters are still unknown. Stereo-70 and Gauss-Krüger are interpreted on S-42 (Pulkovo) datum,old Stereo coords are on the Kesztejhegy 1890 datum and UTM coordinates on WGS84 datum. No other interpretations can be set.Concerning the Gauss-Krüger and UTM, the meridians of 0, 6, 12, 18, etc. degrees are real discriminationlines: zone numbers are depending directly on longitudes. E.g. you cannot calculate the UTM Zone 33

The Bursa-Wolf datum shift parameters can be set in Parameters page. Edit them with caution.

Timár, G., Molnár, G., Păunescu, C, Pendea, F. (2004): Projection and datum parameters of the Transylvanian sheets of the second and third military surveys.

Original title: "A második és harmadik katonai felmérés erdélyi szelvényeinek vetületi és dátumparaméterei"

, along with the modified table.

Changes

date