Toolbox: celestlab

Title: CelestLab

Summary: CNES Space mechanics toolbox for mission analysis

Version: 3.0.0

Author: CNES - DCT/SB

Maintainer: Alain Lamy <Alain.Lamy@cnes.fr>
 Thierry Martin <thierry.martin@cnes.fr>

Category: Aerospace

Entity: CNES - DCT/SB

WebSite: 

URL: http://atoms.scilab.org/toolboxes/celestlab/3.0.0

License: CeCILL

ScilabVersion: >= 5.4

Depends: 

Date: 2013-03-27 17:13:12

Description: ******************************************************************************
 CelestLab - CNES Space mechanics toolbox for Scilab 
 Version 3.0.0			     
 ******************************************************************************
 
 
 Overview of CelestLab 3.0.0
 ---------------------------
 This version includes major improvements and a few changes. 
 It is therefore not fully compatible with CelestLab 2.4.2, but only little
 changes
 are necessary to make old scripts work. 
 
 
 Among the new features: 
 - Many new reference frames (IERS 2010 conventions)
 - New models for the ephemerides of solar system main bodies (MEEUS, VSOP87,
 ELP, DE405)
 - Force + potential functions including for the full gravity model up to
 degree/order 70 (potential defined by spherical harmonics)
 - Extended definition of orbital elements (now 2 new types for equinoctial
 elements)
 - IAU planetary angles (orientation of equator and prime meridian)
 - New propagation model based on Lyddane (mean elements include secular and long
 period perturbation effects)
 - Many new utility functions: Gauss for all orbital element types, conversion of
 time scales, etc... 
 - Magnetic field added (IGRF model). 
 
 Changes regarding predefined data: 
 - No local variables are now created by default (except one for internal use). 
 The function CL_init is still available, but it now only creates a limited set
 of variables. 
 - Internal data may be retrieved by a new function: CL_dataGet. 
 - There have been some changes to improve consistency and simplicity: some
 redundant variables have been removed (e.g. %CL_j2, ...) or renamed (e.g.
 %CL_muSun is replaced by: %CL_body.Sun.mu). 
 - Some data have been updated. Gravity data (zonal terms) are now those from
 EGM96s gravity model. 
 - The default oblateness value is consistent with WGS84. 
 
 - All date/time function arguments are now relative to a specific time scale
 called "TREF". 
 - Two new reference frames adapted to mission analysis are defined: "ECI"
 (nearly inertial frame) and "ECF" (rotating frame).  
  
 - Documentation has been extended with new pages describing various topics
 (ephemerides, forces...). It also includes a section named "cookbook" where
 various complete examples are given. 
 
 - Configuration features have been added for high level properties. 
 
 - CelestLab v3.0.0 can be used with Scilab version 5.3.0 or higher. 
 

