Get the free Sight Reduction Form - Almanac and HO 229 Tables.xlsx
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Sight Reduction Form To be used with the Nautical Almanac and HO 229 tablesBodyDR LongitudeDateTabulated Watch Time GHA IncrementWatch Timezone east subtract west add SHA (stars) or corr (Moon)Watch
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How to fill out sight reduction form
How to fill out sight reduction form
01
To fill out a sight reduction form, follow these steps:
02
Gather all the necessary information and tools, such as the sextant reading, time of observation, latitude and longitude.
03
Start by recording the date and time of the observation at the top of the form.
04
Enter the celestial body you observed and its observation altitude.
05
Calculate the intercept by subtracting the observed altitude from the calculated altitude of the celestial body at that time.
06
Determine the azimuth angle and record it on the form.
07
Calculate the latitude and longitude using the recorded data.
08
Double-check all the calculations and entries on the form for accuracy.
09
Sign and date the form to certify its authenticity.
10
Submit the completed sight reduction form to the appropriate authority or organization.
Who needs sight reduction form?
01
Sight reduction forms are needed by navigators, astronomers, and anyone performing celestial navigation.
02
They are commonly used by mariners and pilots to determine their position on the Earth's surface using celestial observations.
03
People taking part in celestial navigation courses or competitions may also need to fill out sight reduction forms.
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What is sight reduction form?
The sight reduction form is a document used to calculate the sun's position in order to determine a ship's position at sea.
Who is required to file sight reduction form?
Ship captains and navigators are required to file the sight reduction form.
How to fill out sight reduction form?
The sight reduction form is filled out by recording the time of sightings, the angle measurements, and the ship's estimated position.
What is the purpose of sight reduction form?
The purpose of the sight reduction form is to accurately determine a ship's position at sea using celestial navigation techniques.
What information must be reported on sight reduction form?
The sight reduction form must include the date, time of sightings, angle measurements, estimated position, and calculations for determining the ship's position.
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