Description of CRS - BG_BGS2005 / UTM| Attribute | Entry |
|---|
| Country | Bulgaria |
| Country identifier | BG |
| CRS identifier | BG_BGS2005 / UTM |
| CRS alias | EPSG-codes 7803, 7804 |
| CRS valid area | Bulgaria |
| CRS scope | basis for surveying activities, large scale topographic
and base mapping |
| CRS remarks |
|
| Datum identifier | ETRS89 |
| Datum alias | Bulgarian Geodetic System 2005 (BGS2005) |
| Datum type | geodetic |
| Datum anchor point | densification of ETRS89 realised through network of 112
permanent GNSS reference stations |
| Datum realization epoch | 2005.0 |
| Datum valid area | Bulgaria, Europe |
| Datum scope |
|
| Datum remarks | consistent with ETRS89, realization ETRF2000, epoch 2005.0 |
| Prime meridian identifier | Greenwich |
| Prime meridian greenwich longitude | 0° |
| Prime meridian remarks | |
| Ellipsoid identifier | GRS 80 |
| Ellipsoid alias | New International |
| Ellipsoid semi major axis | 6 378 137 m |
| Ellipsoid shape | true |
| Ellipsoid inverse flattening | 298.257222101 |
| Ellipsoid remarks | see Moritz, H. (1988): Geodetic Reference System 1980.
Bulletin Geodesique, The Geodesists Handbook, 1988,
Internat. Union of Geodesy and Geophysics |
| Coordinate system identifier | Universal Transverse Mercator |
| Coordinate system type | projected |
| Coordinate system dimension | 2 |
| Coordinate system remarks | Projection: Transverse Mercator in zones, 6° width in
general |
| Coordinate system axis name | northing / N |
| Coordinate system axis direction | North |
| Coordinate system axis unit identifier | metre |
| Coordinate system axis name | easting / E |
| Coordinate system axis direction | East |
| Coordinate system axis unit identifier | metre |
| Operation identifier | Universal Transverse Mercator |
| Operation valid area | in general: world-wide |
| Operation scope | |
| Operation method name | Universal Transverse Mercator Projection |
| Operation method name alias |
|
| Operation method formula | Transverse Mercator Mapping Equations, in Hooijberg,
Practical Geodesy, 1997, pages 81-84, 111-114 |
| Operation method parameters number | 9 |
| Operation method remarks |
|
| Operation parameter name | latitude of origin |
| Operation parameter value | 0° |
| Operation parameter remarks | the Equator |
| Operation parameter name | longitude of origin |
| Operation parameter value | for BG: 21 ° E, 27° E |
| Operation parameter remarks | |
| Operation parameter name | false northing |
| Operation parameter value | 0m for northern hemispere (e.g. Bulgaria)
10 000m for southern hemisphere |
| Operation parameter remarks | |
| Operation parameter name | false easting |
| Operation parameter value | 500 000m |
| Operation parameter remarks | |
| Operation parameter name | scale factor at central meridian |
| Operation parameter value | 0.9996 |
| Operation parameter remarks | |
| Operation parameter name | width of zones |
| Operation parameter value | 6° |
| Operation parameter remarks | |
| Operation parameter name | zone number n |
| Operation parameter value | in general: 1…60
for BG: zone 34 and 35 |
| Operation parameter remarks | zone number 1 from 180° West increasing eastwards |
| Operation parameter name | Latitude limits of system |
| Operation parameter value | 84° N
80° S |
| Operation parameter remarks | |
| Operation parameter name | limits of zones |
| Operation parameter value | by meridians whose longitude are multiples of 6° West /
6° East of Greenwich |
| Operation parameter remarks | |