IOTA 1999 TRIMESTER NO. 2
                   FINAL  OBSERVING  SCHEDULE 
 
Dates Nights Observers (PI & CoIs)   Inst.   Project
----- ------ ----------------------- ------- -----------------------
Apr      2   Morel,Bregman,          Nicmos  Fringe packet tracker
25-26        Witteborn               & lens

Apr 27   5   Engineering: install concrete pad, shelter house, power, and 
-May 1       signal cables for long delay laser at NE end of delay line.

May     12   Schoeller,Tokovinin,    Nicmos   Multiple star orbits, 
2-13         Kervella, Foresto       & Fluor  photometry, masses

May      4   Weigelt,Foresto,        Nicmos   Miras: diameters, asymmetries,
14-17        Bloecker,Hofmann,       & Fluor  center-to-limb profiles
             Schertl,Wittkowski

May     12   Ruilier,Foresto,Perrin, Nicmos   Miras: continuum and CO,
18-29        Pras or Morel           & Fluor  azimuth variation

May      2   Open
30-31

June     3   Bregman, Morel,         Nicmos   Fringe-packet tracker
1-4          Witteborn               & lens

June 5   98  Carleton,Papaliolios,            Upgrade work:
-Sept 10     Lacasse,Morel,etc.
                        3rd telescope optics installed, 
                        5-axis secondary hubs and spiders installed,
                        2nd short delay line added, 
                        2nd long delay line added,
                        trihedrals replace dihedrals, 
                        picomotor control added to relay mirrors, 
                        long delay laser installation at far end,
                        long delay cmd/control added,
                        fringe tracker system 1.2 installed,
                        initial work on new IOTA control system,
                        preparation for 3-beam combination,
                        and other work as needed.
                           
Notes:
1.  People may wish to come a few days early to familiarize themselves with
the detector system to be used;  observers should cooperate by passing on 
their acquired wisdom about the current state of the instruments.
2.  The 4mm lens inside the Nicmos dewar reduces the plate scale nicely for
the classical beamsplitter setup, but is too strong for the 2x2 fiber-end 
image, and needs to be removed for fiber (Fluor) work, or else the 
standard InSb Fluor detectors should be used.  The lens removal/insertion is
not difficult for dexterous people, but it should be approached with caution. 
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