# altitude

drillable.com › aa-usno-navy-mil › easter › altitude.
As of the index built 10 Sep 2026, 00:38 UTC · [cites, never asserts](/standing).
Source: The Date of Easter, by https://aa.usno.navy.mil.
MCP https://mcp.drillable.com · [html](/e/aa-usno-navy-mil/easter/altitude.html) · [markdown](/e/aa-usno-navy-mil/easter/altitude.md) · [json](/e/aa-usno-navy-mil/easter/altitude.json) · [discovery](/.well-known/drillable.json) · [guide](/llms.txt)

## Records (6)

By drillable.com ([llm-extract/1](/standing#methods)); scored precision 1.00, recall 0.34 on the harness's last sample of 35.

- **definition** = the angular distance of a celestial body above or below the observer's horizon, measured along a great circle passing through the body and the observer's zenith · [quote](/r/sha256:faa3c78d7fc2a86ac04d899a1c932438629bd82c6afa717b1bbcd04513302cdb?trace&start=3046&end=3243) · [sha256:9335ed98edee5ef7…](/r/sha256:9335ed98edee5ef70210054993a21061ef5bb2b1797571f757cf834eb710c741)
- **formula** = sin a = cos(LHA) cos(δ) cos(φ) + sin(δ) sin(φ) · [quote](/r/sha256:faa3c78d7fc2a86ac04d899a1c932438629bd82c6afa717b1bbcd04513302cdb?trace&start=4273&end=4323) · [sha256:571bcc8b1e08237e…](/r/sha256:571bcc8b1e08237e50b5461cc89d823dff0adc96c85e2ea21971c76801e2237e)
- **range** = ± 90 degrees · [quote](/r/sha256:faa3c78d7fc2a86ac04d899a1c932438629bd82c6afa717b1bbcd04513302cdb?trace&start=4501&end=4570) · [sha256:81485003723dbefc…](/r/sha256:81485003723dbefc6f6b4e49ce6f522aa291a598864333e42466c2a630219ece)
- **definition** = the angular distance of a celestial body above or below the observer's horizon, measured along a great circle passing through the body and the observer's zenith [superseded] · [quote](/r/sha256:5fb2f96353c2ac943f32662a18c2e14eee59e94595ae8c0304230300c4b28af9?trace&start=3004&end=3177) · [sha256:b461efb280cfc720…](/r/sha256:b461efb280cfc7202177794f22d02a28db998cbce13875efb1e6e3368dd0b402)
- **formula** = sin a = cos(LHA) cos(δ) cos(φ) + sin(δ) sin(φ) [superseded] · [quote](/r/sha256:5fb2f96353c2ac943f32662a18c2e14eee59e94595ae8c0304230300c4b28af9?trace&start=4112&end=4162) · [sha256:3941f1c40caf4431…](/r/sha256:3941f1c40caf4431a020bb35e3e30c8176809ec2e3f39dac4024c672531494bb)
- **range** = ± 90 degrees [superseded] · [quote](/r/sha256:5fb2f96353c2ac943f32662a18c2e14eee59e94595ae8c0304230300c4b28af9?trace&start=4325&end=4386) · [sha256:60b1be2c6f1c2ead…](/r/sha256:60b1be2c6f1c2ead95c136cbaac08a15f4d15dc5cfa0908e709441ebecfcd09d)

Everything here is a record by a named reader, arranged; where readers disagree, both are shown.
No reader has asserted a label for it; the title is its address.

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