Observations of the occultation of SAO 159443 (HIP 76876) 
by (4) Vesta on 2007 January 31

Sta.  Observers                      Long. E.  Latitude    h, Scope 
                                       o '  "    o '  "    m  ap,cm
1 Tancredi, Gonzalo, Uruguay        - 561123.  -344520.   130  35
2 Ribas, Mariano, Buenos Aires, AR  - 582527.3 -343754.3   10  20

Sta.   Universal Times
   Disappearance  Reappearance
   h m  s    s    h m  s    s
1  71359.94 0.55  71417.23 0.55  CCD drift scan
2  71415.   5.0   71429.   2.0   visual observation
                               
Following the U.T. times are the estimated uncertainties.  
Unfortunately, the observer chords do not overlap.  The event must 
have been difficult for Mariano Ribas with the only 0.3 mag. drop, 
so he was probably very late with his timings of the occultation; 
either that or there was a problem with determination of Univ. Time.