Note: The 2014 data here donât reflect advanceable payments of the premium tax credit (APTC) for which an applicant may be eligible due to his/her householdâs income and how it relates to the federal poverty level (FPL). The plan data show premiums for the following rating scenarios: 1  Child -- one child any age.
1 Also called angle of elevation. the angle between the line from an observer or instrument to an object above the observer or instrument and a horizontal line.  the distance above a datum level.
Part of the Mathematics glossary: Azimuth and elevation are angles used to define the apparent position of an object in the sky, relative to a specific observation point. The observer is usually (but not necessarily) located on the earth's surface.