OBSERVING PERIODS- 2042
      (UT dates. Lick PST=UT-8h   Keck HST=UT-10h)
      --------------------------------------------
            DURATION       RUN           MOON
           FQ+1 to LQ      bright     PHASE  DATE
           LQ+1 to FQ      dark              (UT)
     ---------------------------------------------
     2041 Dec 31-Jan 14    BRIGHT    FULL   Jan 06
     2042 Jan 15-Jan 28    DARK      NEW    Jan 21
     2042 Jan 29-Feb 13    BRIGHT    FULL   Feb 05
     2042 Feb 14-Feb 26    DARK      NEW    Feb 20
     2042 Feb 27-Mar 14    BRIGHT    FULL   Mar 06
     2042 Mar 15-Mar 28    DARK      NEW    Mar 21
     2042 Mar 29-Apr 13    BRIGHT    FULL   Apr 05
     2042 Apr 14-Apr 27    DARK      NEW    Apr 20
     2042 Apr 28-May 12    BRIGHT    FULL   May 05
     2042 May 13-May 26    DARK      NEW    May 19
     2042 May 27-Jun 11    BRIGHT    FULL   Jun 03
     2042 Jun 12-Jun 25    DARK      NEW    Jun 17
     2042 Jun 26-Jul 10    BRIGHT    FULL   Jul 03
     2042 Jul 11-Jul 25    DARK      NEW    Jul 17
     2042 Jul 26-Aug 08    BRIGHT    FULL   Aug 01
     2042 Aug 09-Aug 23    DARK      NEW    Aug 15
     2042 Aug 24-Sep 06    BRIGHT    FULL   Aug 31
     2042 Sep 07-Sep 22    DARK      NEW    Sep 14
     2042 Sep 23-Oct 06    BRIGHT    FULL   Sep 29
     2042 Oct 07-Oct 22    DARK      NEW    Oct 14
     2042 Oct 23-Nov 04    BRIGHT    FULL   Oct 28
     2042 Nov 05-Nov 20    DARK      NEW    Nov 12
     2042 Nov 21-Dec 04    BRIGHT    FULL   Nov 27
     2042 Dec 05-Dec 20    DARK      NEW    Dec 12
     2042 Dec 21-Jan 03    BRIGHT    FULL   Dec 26
     ---------------------------------------------