Celestial Navigation · Sight Reduction — Interpolation
In Pub. No. 229 the tabulated altitude must be interpolated for the:
- AHeight of eye
- BZone description
- CIndex error
- DDeclination increment (minutes of declination), using the 'd' value and the interpolation table✓ Correct
Explanation
Tables are entered with whole degrees of LHA, latitude, and declination; the altitude is then interpolated for the odd minutes of declination using the tabulated altitude difference 'd' and the interpolation table.
Authority: Pub. No. 229, interpolation of altitude
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