Octet | Contents |
---|---|
15 |
Shape of the Earth (See Table
3.2) |
16 |
Scale Factor of radius of
spherical Earth |
17-20 |
Scale value of radius of
spherical Earth |
21 |
Scale factor of major axis of
oblate spheroid Earth |
22-25 |
Scaled value of major axis of
oblate spheroid Earth |
26 |
Scale factor of minor axis of
oblate spheroid Earth |
27-30 |
Scaled value of minor axis of oblate spheroid Earth |
31-34 |
Ni—number of points along a parallel |
35-38 |
Nj—number of points along a meridian |
39-42 |
Basic angle of the initial
production domain (see Note 1) |
43-46 |
Subdivisions of basic angle used
to define extreme longitudes and latitudes, and direction increments
(see Note 1) |
47-50 |
La1—latitude of first grid point
(see Note 1) |
51-54 |
Lo1—longitude of first grid point
(see Note 1) |
55 |
Resolution and component flags
(see Table 3.3) |
56-59 |
La2—latitude of last grid point
(see Note1) |
60-63 |
Lo2—longitude of last grid point
(see Note 1) |
64-67 |
Di—i direction increment (see
Note1) |
68-71 |
Dj —j direction increment (see Note1) |
72 |
Scanning mode (flags — see
Table 3.4) |
73-nn |
List of number of points along each meridian or parallel |
Notes:
1. Basic angle of the initial production domain and subdivisions
of this basic angle are provided to manage cases where the recommended
unit of 10-6 degrees is not applicable to describe the
extreme longitudes and latitudes, and direction increments. For these
last six descriptors, the unit is equal to the ratio of the basic angle
and the subdivisions number. For ordinary cases, zero and missing values
should be coded, equivalent to respective values of 1 and 106
(10-6 degrees unit). |