Changeset 4095 for trunk/doc/pslib/psLibADD.tex

Timestamp:

Jun 2, 2005, 4:34:13 PM (21 years ago)

Author:

Paul Price

Message:

Removed references to slalib

File:

• trunk/doc/pslib/psLibADD.tex (modified) (4 diffs)

trunk/doc/pslib/psLibADD.tex

@@ -1 @@
-%%% $Id: psLibADD.tex,v 1.73 2005-04-27 19:59:04 eugene Exp $
+%%% $Id: psLibADD.tex,v 1.74 2005-06-03 02:34:13 price Exp $
 \documentclass[panstarrs]{panstarrs}
 
@@ -54 +54 @@
 \DocumentsExternalSection
 Posix Standard                      & Open Group Based Specifications Issue 6, IEEE Std 1003.1, 2003 \\ \hline
-SLALIB Positional Astronomy Library & \code{http://star-www.rl.ac.uk/star/docs/sun67.htx/sun67.html } \\ \hline
 Numerical Recipes (NR)              & Press, Teukolsky, Vetterline, Flannery \\ \hline
 Knuth, D.E.                         & Sorting and Searching; The Art of Computer Programming \\ \hline
@@ -2322 +2321 @@
 \subsection{General Astronomy Functions}
 
-\tbd{we will provide a new airmass function}
-
-The airmass is calculated using the SLALIB function \code{sla_AIRMAS}.
-
-The parallactic angle is calculated using the SLALIB function \code{sla_PA}.
-
-%The parallax factors are calculated using the following formulae
-%(Smart et al.\ 2003, A\&A, 404, 317):
-%\begin{eqnarray}
-%P_\xi & = & \cos \alpha \sin \lambda \cos \epsilon - \sin \alpha \cos \lambda \\
-%P_\eta & = & (\sin \epsilon \cos \delta - \cos \epsilon \sin \alpha \sin \delta) \sin \lambda - \cos \alpha \sin \delta \cos \lambda
-%\end{eqnarray}
-%where $\alpha$ is the Right Ascension, $\delta$ is the Declination,
-%$\lambda$ is the solar longitude, and $\epsilon = 23^\circ 27'08''.26$
-%is the inclination of the ecliptic.  The solar longitude is obtained
-%from the ecliptic coordinates of the Sun.
-
-\tbd{we will provide a new mean-to-apparent conversion}
-
-To calculate the parallax factors, get the mean-to-apparent parameters
-(\code{sla_MAPPA}) for a mean epoch of 2000.0, and, given the mean
-position of interest, calculate the apparent position
-(\code{sla_MAPQK}) for a parallax of 1.0 arcsec $(\alpha_1,\delta_1)$,
-and a parallax of 0.0 arcsec $(\alpha_0,\delta_0)$.  Then the parallax
-factors in radians are:
-\begin{eqnarray}
-P_x & = & 3,600 (180^\circ/\pi) (\alpha_1 - \alpha_0) cos (\delta_0) \\
-P_y & = & 3,600 (180^\circ/\pi) (\delta_1 - \delta_0)
-\end{eqnarray}
+\tbd{we will provide a new airmass function, and a new mean-to-apparent conversion}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -2356 +2327 @@
 \subsection{Positions of Major Solar System Objects}
 
-\tbd{ephemerides code to replace this?}
-
-The SLALIB function \code{SLA_RDPLAN} returns the apparent position of
-a specified planet, or the Moon.
-
-To calculate the position of the Sun, use \code{sla_EVP} to get the
-position of the earth relative to the Sun, and convert from the
-cartesian coordinates to spherical using \code{sla_DCC2S}, and
-calculate the position on the opposite side of the sphere ($\alpha
-\rightarrow \alpha + 12 {\rm hrs}$ and $\delta \rightarrow -\delta$).
+\tbd{ephemerides code?}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%