---
name: "calceph_queryorientation"
section: "1"
platform: "linux"
package: "calceph"
version: "4.0.4-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/calceph_queryorientation"
---

# calceph\_queryorientation(1)

computes the orientation of the target body using the ephemeris files for a Julian day TDB

## NAME

calceph\_queryorientation - computes the orientation of the target body using the ephemeris files for a Julian day TDB

## SYNOPSIS

**calceph\_queryorientation** \[juliandate\] \[target\] \[file ...\]

## DESCRIPTION

**calceph\_queryorientation** displays to the standard output the euler angles of the orientation of the target body for a Julian day TDB using the ephemeris files.

The NAIF identification numbering system is used for the target body.   The euler angles are expressed in radians. These quantities are expressed in the ICRF frame.

## EXAMPLES

- **calceph\_queryorientation 244357.5 1900301 examples/example1.bpc**

  Display the orientation of the Moon at the julian date 244357.5 TDB using the ephemeris file examples/example1.bpc

## SEE ALSO

calceph\_queryposition (1)

## BUGS

No known bugs.

## AUTHOR

Mickael Gastineau (Mickael.Gastineau@obspm.fr)

## COPYRIGHT

Copyright  2008-2024 CNRS, Observatoire de Paris, Observatoire de la Côte d'Azur