********** Mauna Loa Solar Observatory **********

OBSERVING HOURS
 
 These are defined as the time between the first
 and the last useful coronal scans made with the
 MkIII K-coronameter. This instrument levies very
 stringent requirements on the condition of the
 sky so is the most sensitive to the weather.
 Unless otherwise stated, it may be assumed that
 the H alpha observations made with the prominence
 monitor will be available for the same hours as
 the coronal data, or perhaps even longer.

 The format of this file is undergoing evaluation
 and may not be final.

        YEAR 1993:

  Day of   Begin     End   
   Year     (UT)    (UT)
  ======   =====   =====
       1   -----   -----
       2   -----   -----
       3   18.03   21.32
       4   -----   -----
       5   18.33   22.00
       6   -----   -----
       7   -----   -----
       8   21.07   22.02
       9   -----   -----   
      10   -----   -----
      11   18.29   20.27
      12   -----   -----
      13   -----   -----
      14   -----   -----
      15   -----   -----
      16   -----   -----
      17   -----   -----   
      18   18.08   20.44
      19   -----   -----
      20   -----   -----
      21   17.56   20.16
      22   -----   -----
      23   -----   -----
      24   18.06   22.00
      25   -----   -----
      26   18.09   21.59
      27   18.11   21.49
      28   18.07   21.46
      29   18.01   22.45
      30   18.48   22.04
      31   18.14   20.20
      32   18.10   22.03   
      33   18.08   20.16
      34   18.04   22.20
      35   -----   -----
      36   18.05   22.26
      37   -----   -----
      38   -----   -----
      39   18.00   22.03
      40   -----   -----
      41   17.58   22.00
      42   -----   -----
      43   17.57   22.00
      44   -----   -----
      45   -----   -----
      46   17.59   21.59
      47   -----   -----
      48   17.56   21.47
      49   -----   -----
      50   18.12   21.52
      51   -----   -----   
      52   17.54   21.50
      53   -----   -----
      54   17.58   20.34
      55   -----   -----
      56   18.03   22.01
      57   -----   -----
      58   -----   -----
      59   -----   -----
      60   17.48   21.23
      61   -----   -----
      62   18.09   22.16
      63   -----   -----
      64   17.46   21.52
      65   -----   -----
      66   17.39   21.10
      67   -----   -----   
      68   17.43   20.02
      69   -----   -----
      70   -----   -----
      71   17.44   21.58
      72   -----   -----   
      73   -----   -----   
      74   21.15   00.26   
      75   -----   -----
      76   17.49   20.06
      77   -----   -----
      78   17.48   21.09
      79   -----   -----
      80   17.49   19.40
      81   -----   -----
      82   17.40   22.12
      83   -----   -----
      84   17.43   22.01
      85   -----   -----
      86   -----   -----
      87   17.43   22.16
      88   -----   -----
      89   17.36   22.03
      90   -----   -----
      91   17.33   21.44
      92   -----   -----
      93   -----   -----
      94   -----   -----
      95   17.29   22.00
      96   -----   -----
      97   17.28   21.35
      98   17.24   19.47
      99   17.23   20.36
     100   17.20   20.34
     101   17.21   22.00
     102   17.23   22.03
     103   -----   -----
     104   17.22   22.01
     105   -----   -----
     106   17.34   20.18
     107   -----   -----
     108   17.31   20.32
     109   -----   -----   
     110   17.45   19.09
     111   -----   -----
     112   -----   -----
     113   17.26   22.02
     114   -----   -----
     115   -----   -----
     116   -----   -----
     117   -----   -----
     118   17.29   20.18
     119   -----   -----
     120   17.33   20.53
     121   -----   -----
     122   17.09   21.37
     123   -----   -----
     124   17.13   21.52
     125   -----   -----
     126   17.10   21.21
     127   -----   -----
     128   -----   -----
     129   -----   -----
     130   -----   -----
     131   -----   -----
     132   -----   -----
     133   -----   -----
     134   -----   -----
     135   17.16   22.00
     136   -----   -----   
     137   17.24   20.01
     138   -----   -----
     139   -----   -----   
     140   -----   -----
     141   -----   -----
     142   -----   -----
     143   -----   -----
     144   17.26   20.29
     145   -----   -----
     146   18.18   21.08
     147   -----   -----
     148   17.21   21.09
     149   -----   -----
     150   17.09   21.34
     151   -----   -----
     152   17.06   22.18
     153   17.00   21.06
     154   17.05   21.55
     155   17.03   22.35
     156   17.08   22.41
     157   17.17   22.41
     158   17.21   22.17
     159   -----   -----
     160   17.23   22.02
     161   -----   -----
     162   17.13   22.05
     163   -----   -----
     164   -----   -----
     165   17.02   22.04
     166   17.17   22.06
     167   17.06   21.26
     168   17.08   22.22
     169   17.10   22.03
     170   -----   -----
     171   17.10   22.17
     172   16.58   22.08
     173   17.49   22.06
     174   17.14   22.04
     175   -----   -----   
     176   17.18   22.12
     177   -----   -----
     178   17.22   21.51
     179   17.03   20.26
     180   17.16   21.22
     181   17.01   21.29
     182   -----   -----
     183   17.26   21.04
     184   -----   -----
     185   17.21   21.52
     186   17.08   22.01
     187   17.07   21.59
     188   17.28   21.18
     189   17.05   21.49
     190   -----   -----
     191   -----   -----
     192   -----   -----
     193   17.31   18.48
     194   -----   -----
     195   -----   -----
     196   17.16   22.00
     197   17.04   20.41
     198   -----   -----
     199   17.03   21.20
     200   17.03   21.48
     201   -----   -----
     202   17.11   18.44
     203   -----   -----
     204   -----   -----
     205   -----   -----
     206   -----   -----
     207   -----   -----
     208   17.04   19.09
     209   16.55   19.50
     210   -----   -----
     211   17.11   21.13
     212   -----   -----
     213   -----   -----
     214   17.17   20.31
     215   17.41   21.41
     216   -----   -----
     217   17.11   20.54
     218   17.03   21.59
     219   -----   -----
     220   17.13   22.06
     221   17.00   22.13
     222   17.11   21.36
     223   17.40   21.12
     224   16.59   20.47
     225   -----   -----
     226   -----   -----
     227   -----   -----
     228   -----   -----
     229   -----   -----
     230   -----   -----
     231   -----   -----
     232   17.51   21.55
     233   -----   -----
     234   -----   -----
     235   -----   -----
     236   17.15   20.57
     237   -----   -----
     238   -----   -----
     239   17.18   22.11
     240   -----   -----
     241   17.12   22.07
     242   -----   -----
     243   -----   -----
     244   18.24   20.55
     245   17.12   18.38
     246   17.31   21.52
     247   -----   -----
     248   17.19   22.06
     249   17.33   20.06
     250   17.39   22.05
     251   17.15   21.44
     252   17.25   19.47
     253   17.24   21.57
     254   -----   -----
     255   17.27   19.53
     256   17.40   21.01
     257   17.28   22.03
     258   17.12   21.36
     259   17.44   21.57
     260   -----   -----
     261   -----   -----
     262   17.31   21.54
     263   -----   -----
     264   17.51   21.56
     265   17.19   19.11
     266   -----   -----
     267   -----   -----
     268   -----   -----
     269   17.38   20.45
     270   17.30   21.07
     271   17.33   19.55
     272   -----   -----
     273   17.20   18.50
     274   -----   -----
     275   -----   -----
     276   -----   -----
     277   17.18   19.51
     278   17.33   21.38
     279   -----   -----
     280   17.29   21.58
     281   17.15   22.02
     282   -----   -----
     283   17.18   22.02
     284   -----   -----
     285   -----   -----
     286   17.49   20.11
     287   17.20   20.38
     288   18.32   19.34
     289   -----   -----
     290   17.40   20.38
     291   19.03   19.22
     292   -----   -----
     293   -----   -----
     294   -----   -----
     295   17.46   19.56
     296   -----   -----
     297   -----   -----
     298   -----   -----
     299   -----   -----
     300   17.28   22.02
     301   17.25   22.09
     302   17.32   21.59
     303   -----   -----
     304   17.27   21.46
     305   -----   -----
     306   -----   -----
     307   17.30   19.56
     308   -----   -----
     309   17.39   22.01
     310   17.35   22.10
     311   17.30   22.01
     312   17.39   22.12
     313   -----   -----
     314   17.30   21.33
     315   17.36   21.30
     316   -----   -----
     317   17.34   22.00
     318   17.49   22.10
     319   17.35   22.02
     320   17.42   22.10
     321   17.37   19.45
     322   17.54   22.15
     323   17.46   22.27
     324   17.28   21.51
     325   17.54   22.21
     326   17.48   22.11
     327   -----   -----
     328   17.38   21.22
     329   17.32   22.03
     330   17.45   21.01
     331   17.34   22.00
     332   -----   -----
     333   -----   -----
     334   -----   -----
     335   17.47   21.08
     336   18.02   22.16
     337   -----   -----
     338   17.55   22.10
     339   17.39   19.38
     340   17:44   19:11
     341   -----   -----
     342   -----   -----
     343   17:46   19:53
     344   17:59   22:31
     345   -----   -----
     346   17:48   22:33
     347   -----   -----
     348   18:12   22:00
     349   17:41   21:44
     350   -----   -----
     351   -----   -----
     352   -----   -----
     353   -----   -----
     354   18:37   22:34
     355   17:49   22:00
     356   17:59   22:30
     357   -----   -----
     358   17:56   22:18
     359   -----   -----
     360   17:58   22:21
     361   17:46   21:45     Gorgeous CME at PA ~260deg
     362   17:54   22:28
     363   17:54   22:00
     364   17:59   22:03
     365   17:47   21:36
