| Octet No. | Contents |
|---|---|
| 15 | Shape of the Earth (See Code Table 3.2) |
| 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 |
| 39-54 |
Reserved (set to zero) |
| 55 |
Resolution and component flags (see Flag Table 3.3) |
| 56-71 |
Reserved (set to zero) |
| 72 | Scanning mode (flags — see Flag Table 3.4) |
| Notes: 1. Orthogonal on the sphere with smoothly changing grid size dx=dy, x-y-z right handed with z-positive upwards. 2. A scale value of radius of spherical Earth, or major or minor axis of oblate Earth, is derived by applying the appropriate scale factor to the value expressed in metres. |