NAME: num_rate PURPOSE: (one line only) Gives the relative number vs. apparent motion rate(arcsec/hr) of KBOs. DESCRIPTION: This is a crude approximation of the number of objects as a function of distance, and rate is given as a proxy for distance. The intended range of the rate is from 2arcsec/hr to 5arcsec/hr, it is valid to evaluate it at any rate, but will be poorly representatibe outside of 2 to 5. This function is meant to be probabalistically sampled with smplprb.pro. The normalization of this function is arbritrary. CATEGORY: Miscellaneous CALLING SEQUENCE: array=num_rate(x) INPUTS: x :An array or scalar value in arcsec/hr OPTIONAL INPUT PARAMETERS: KEYWORD INPUT PARAMETERS: OUTPUTS: array :Returns a float array of the same size as x. KEYWORD OUTPUT PARAMETERS: COMMON BLOCKS: SIDE EFFECTS: RESTRICTIONS: PROCEDURE: MODIFICATION HISTORY: 2004/07/13, Written by Maureen Teyssier, REU Lowell Observatory 2004/07/15, MWB, incorporated into library. 2004/07/18, MWB, changed to a more realistic function based on real data.