diff --git a/jsdoc2md/js.hbs b/jsdoc2md/js.hbs
index 307e12c9..7b23827f 100644
--- a/jsdoc2md/js.hbs
+++ b/jsdoc2md/js.hbs
@@ -24,8 +24,9 @@ and some [Node.js examples](../../demo/nodejs/).
 
 | Function | Description |
 | -------- | ----------- |
-| [HelioVector](#HelioVector) | Calculates vector with respect to the center of the Sun.   |
-| [GeoVector](#GeoVector)     | Calculates vector with respect to the center of the Earth. |
+| [HelioVector](#HelioVector) | Calculates body position vector with respect to the center of the Sun.   |
+| [GeoVector](#GeoVector)     | Calculates body position vector with respect to the center of the Earth. |
+| [ObserverVector](#ObserverVector) | Calculates vector from the center of the Earth to an observer on the Earth's surface. |
 | [Equator](#Equator)         | Calculates right ascension and declination. |
 | [Ecliptic](#Ecliptic)       | Calculates ecliptic latitude, longitude, and Cartesian coordinates. |
 | [Horizon](#Horizon)         | Calculates horizontal coordinates (azimuth, altitude) for a given observer on the Earth. |
diff --git a/pydown/py_prefix.md b/pydown/py_prefix.md
index fb4d57d6..fe38e149 100644
--- a/pydown/py_prefix.md
+++ b/pydown/py_prefix.md
@@ -28,8 +28,9 @@ To get started quickly, here are some [examples](../../demo/python/).
 
 | Function | Description |
 | -------- | ----------- |
-| [HelioVector](#HelioVector) | Calculates vector with respect to the center of the Sun. |
-| [GeoVector](#GeoVector)     | Calculates vector with respect to the center of the Earth. |
+| [HelioVector](#HelioVector) | Calculates body position vector with respect to the center of the Sun. |
+| [GeoVector](#GeoVector)     | Calculates body position vector with respect to the center of the Earth. |
+| [ObserverVector](#ObserverVector) | Calculates vector from the center of the Earth to an observer on the Earth's surface. |
 | [Equator](#Equator)         | Calculates right ascension and declination. |
 | [Ecliptic](#Ecliptic)       | Converts J2000 equatorial coordinates to J2000 ecliptic coordinates. |
 | [EclipticLongitude](#EclipticLongitude) | Calculates ecliptic longitude of a body in the J2000 system. |
diff --git a/source/js/README.md b/source/js/README.md
index 8a03592b..c4fdf8b9 100644
--- a/source/js/README.md
+++ b/source/js/README.md
@@ -24,8 +24,9 @@ and some [Node.js examples](../../demo/nodejs/).
 
 | Function | Description |
 | -------- | ----------- |
-| [HelioVector](#HelioVector) | Calculates vector with respect to the center of the Sun.   |
-| [GeoVector](#GeoVector)     | Calculates vector with respect to the center of the Earth. |
+| [HelioVector](#HelioVector) | Calculates body position vector with respect to the center of the Sun.   |
+| [GeoVector](#GeoVector)     | Calculates body position vector with respect to the center of the Earth. |
+| [ObserverVector](#ObserverVector) | Calculates vector from the center of the Earth to an observer on the Earth's surface. |
 | [Equator](#Equator)         | Calculates right ascension and declination. |
 | [Ecliptic](#Ecliptic)       | Calculates ecliptic latitude, longitude, and Cartesian coordinates. |
 | [Horizon](#Horizon)         | Calculates horizontal coordinates (azimuth, altitude) for a given observer on the Earth. |
diff --git a/source/python/README.md b/source/python/README.md
index 39b2f91b..fb64a635 100644
--- a/source/python/README.md
+++ b/source/python/README.md
@@ -28,8 +28,9 @@ To get started quickly, here are some [examples](../../demo/python/).
 
 | Function | Description |
 | -------- | ----------- |
-| [HelioVector](#HelioVector) | Calculates vector with respect to the center of the Sun. |
-| [GeoVector](#GeoVector)     | Calculates vector with respect to the center of the Earth. |
+| [HelioVector](#HelioVector) | Calculates body position vector with respect to the center of the Sun. |
+| [GeoVector](#GeoVector)     | Calculates body position vector with respect to the center of the Earth. |
+| [ObserverVector](#ObserverVector) | Calculates vector from the center of the Earth to an observer on the Earth's surface. |
 | [Equator](#Equator)         | Calculates right ascension and declination. |
 | [Ecliptic](#Ecliptic)       | Converts J2000 equatorial coordinates to J2000 ecliptic coordinates. |
 | [EclipticLongitude](#EclipticLongitude) | Calculates ecliptic longitude of a body in the J2000 system. |