PREDICTION OF THE OCCULTATION

 Column Headings

   DATE (M D)  TIME-UT (H M S) gives day of month and hours, minutes and seconds of the
        predicted Universal Time (UT) of the occultation event.                       
   
   P is phenomenon : D for disappearance, R for reappearance.
   
   D is double star code : N,S,P,F, means prediction is for only the north,south,
        preceding (west) or following (east) component of the double.        
        M means double was unresolved photographically, and prediction is for mean position
        of components.
        
   H-92 REF NO is the primary identification of the star, needed on the observation report.
        It is same as the XZ catalog NO of USNO completely.         
        When you report the observation data with this catalogue number, use  "H"  for the 
        mark of the star name (catalog or reference).
   
   O is the observability code, with 9 the most easily observable, and 0 meaning not 
        observable under any conditions.

   MAX MAG is the visual magnitude of the star; For variable stars, it is the aximum 
        magnitude.

   SP is the spectral type. For bright limb events, type G stars have the same color as 
        Moonlight, and are the most difficult to resolve. Star with more than one spectrum
        (spectrum variables,double-line spectroscopic binaries) have +++ for spectral type.

   PCT SNLT is the percent of the Moon's disk sunlit (100% = FULL Moon), followed by + for
       waxing or - for waning.

   ELG is the elongation of the Moon from the Sun. This is the angle at the center of the 
        Earth between Sun and Moon. It can never exceed 180ß.

   SN AL is the altitude of the Sun above the horizon, given only when it is greater than 
        or equal to -12ß (which is the end of nautical twilight). Daytime events are also 
        predicted when observable.

   MN AL is the altitude of the Moon above the horizon. This and all subsequent quantites 
        are in degrees, unless other units are indicated.

   MN AZ is the azimuth of the Moon, measured along the horizon from the north point 
        eastward.
           
   CA is the cusp angle of the event. This is the angle from the nearest lunar cusp to 
        the star.   The nearest cusp is identified by letter as the  North (N), 
        South (S), East (E), or West (W) cusp. Cusp angle is positive on the dark limb 
        and negative on the bright limb.
         
   PA is the position angle of the event, measured at the center of the Moon's disk from 
        the north celestial pole eastward to the star.

   DM REF NO is the Durchmusterung reference number. For BD numbers, the zone and four 
        digit number are separated by a blank. For CD numbers, the zone and five digit 
        number are unseparated.

   SAO REF NO is the reference number of the star in the Smithsonian Astrophysical 
        Observatory (SAO) star catalog.   0 indicates a star not in the SAO catalog.

   ZC REF NO is the reference number of the star in the Zodiacal catalog (ZC). The blank 
        indicates a star not in the ZC catalog.

   RT. ASC. (H M S) is the accurate apparent right ascension of the star at the time of 
        occultation.

   DECL. ( ß ' ") is the accurate apparent declination of the star at occultation.