Table of Contents

Note that orbits with very long or short periods cannot be reliably classified, either because they have simply not been tracked long enough, or because they may be scattered from one orbital family to another.

**orbname** will, for each dimension (X,Y,Z),
tabulate the number of angular momentum *flips* and velocity *flips*, *tau* (the
ratio of mean to dispersion of the angular momentum), *nu* (the ratio of
half the sum of min and max to dispersion), the *minimum* and *maximum* angular
momentum, and their *mean* and *dispersion*.

The ratios *tau* and *nu* (under
control of the user, see **taumin=** and **numin=** below) are used to classify
an orbit has having a significant amount of angular moment along an axis.
In addition, if an axis has no flips in angular momentum, it is also counted
has having angular moment along that axis. This gives a total of three methods
to classify orbits. There are output under the names **F_Category** (J-flipping),
**T_Category** (tau) and **N_Category** (nu)
.

**in=***in_orbit*- Input
orbit(s), in standard
*orbit(5NEMO)*format. **taumin=***tau_min*- Minimum mean/sigma
J_i needed to count as significant angular momentum. [Default:
**1**]. **numin=***nu_min*- Minimum ratio of half the sum of min and max to their sigma J_i needed
to count as significant angular momentum. [Default:
**1**]. **plot=t|f**- Logical to
denote if a 6 panels with evolution of angular momentum and (XY,YZ,XZ)
need to be plotted. See
**yapp(5NEMO)**. [Default:**f**] **tmax=**- Maximum time to plot. Default: autoscale from the orbit.
**rmax=**- Maximum X,Y,Z extent to plot. Default:
autoscale from -
**rmax**to**rmax**. **jmax=**- Maximum Jx,Jy,Jz extent to plot. Default:
autoscale from -
**jmax**to**jmax**.

3-dec-93V1.0 CreatedPJT 6-dec-93V1.1 added nupjt