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                                 ReadMe File
                              26 September 1998
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You have downloaded a gzipped, tar file containing data from the PLANET 
Collaboration paper entitled:

                   The Relative Lens-Source Proper Motion 
                              in MACHO 98-SMC-1  
    
         M. Albrow, J.-P. Beaulieu, J.A.R. Caldwell, D.L. DePoy, 
         M. Dominik, B.S. Gaudi, A. Gould, J. Greenhill, K. Hill, 
         S. Kane, R. Martin, J. Menzies, R.M. Naber, K. Pollard, 
       P.D. Sackett, K.C. Sahu, P. Vermaak, R. Watson, A. Williams

                         (The PLANET Collaboration) 
                                     and
			         R. W. Pogge

This paper is published in the Astrophysical Journal, 1999, 512, 672,  
and is also available through the electronic archives at 
http://babbage.sissa.it/abs/astro-ph/9807086.  Please reference 
this article if you make use of these data.

In addition to this ReadMe file, the tar file consists of 1 ascii data file.  
The data file contains the PLANET collaboration light curve for the 
SMC microlensing event MACHO 98-SMC-1, and is arranged as follows:

col1    timestamp       JD - 2450000.0
col2    site            Observing site where data were taken
                        C = CTIO        (CTIO 0.9m)
                        Y = Yale/CTIO   (Yale 1.0m)
                        S = Sutherland  (SAAO 1m)
                        T = Tasmania    (Canopus Observatory 1.0m)
col3    I magnitude     Observed Cousins I (calibrated with OGLE data)
col4    error           Uncertainty in magnitudes

For more information about this event, refer to the PLANET article above.

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