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    Read MPEC 2013-A20 Read MPEC 2013-A22

    M.P.E.C. 2013-A21                                Issued 2013 Jan. 5, 18:53 UT
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
       on behalf of Commission 20 of the International Astronomical Union by the
              Minor Planet Center, Smithsonian Astrophysical Observatory,
                              Cambridge, MA 02138, U.S.A.
                 Prepared using the Tamkin Foundation Computer Network
                URL http://www.minorplanetcenter.net/    ISSN 1523-6714
                                   EDITORIAL NOTICE
       The Minor Planet Center is announcing a number of items relevant to
    observers.  Comments or reports of problems with these new features should be
    sent by e-mail to tspahr@cfa or via an on-line Feedback form.
    1. New NEOCP Landing Page
       A new NEOCP landing page has been developed that allows observers to sort
    the objects in a wide variety of ways.  The new page is
    http://www.minorplanetcenter.net/iau/NEO/toconfirm_tabular.html.  The two
    existing NEOCP pages (ordered by discovery date and Right Ascension) will
    continue to be updated for the forseeable future.
       Ideally, any scripts that attempt to parse the existing pages will be
    rewritten to use the new text file which contains the data from the NEOCP page:
    http://www.minorplanetcenter.net/iau/NEO/neocp.txt.  This is a pure ASCII file
    containing the data for one object on one line.
    2. NEOCP Desirability Scores
       The MPC is introducing an NEOCP follow-up desirability score (NDS) to assist
    observers in selecting NEOCP targets to provide the most needed and
    effective observations for orbit improvement.  Our goal is to distribute
    the limited follow-up resources efficiently and to provide the highest
    number of NEOCP objects with adequate coverage for preliminary orbital
    solutions.  The basic NDS is the digest2 score, which is then modified to
    take into account the number of observations, the span of observations, the
    nominal absolute magnitude, and the interval between observations.  The MPC
    would like to note that too often the "easiest" objects to observe are
    over-observed, and other objects that need follow-up are ignored.  We request
    observers use the NDS to assist them in making their valuable observations
    more useful still.
    3. mpc@cfa vs obs@cfa
       The e-mail submission of observations should now be made to obs@cfa,
    rather than mpc@cfa.  We are announcing a cut-off date of 2013 Mar. 1
    for observation submissions to mpc@cfa.  After that date, any observation
    batches sent to mpc@cfa will not be forwarded to the automated processing
    routines.  The address mpc@cfa will continue as a general contact address
    for the MPC.
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-A21

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