Occultation by the large asteroid (704) Interamnia observed from 7 stations, in New Mex., Iowa, and Mich. - New 2007 Sept. 10, 23h UT

     Below is a summary of the seven positive observations of this 
morning's occultation by Interamnia that I know about so far; no 
negative (monitored star & had no event) observations have been 
reported yet.  Pre-event predictions and plans are here.

Occultation of TYC 2410-00061-1 by 704 Interamnia on 2007 Sep 09 
[Prediction of 2007 Aug 14.0] 

Dist.
from
center  Observer, Location, Method, duration (if provided)
  km
 164 ***  Predicted Northern limit  ***
  65 David Dunham, n. of Dubuque, IA, C8, intensified video
  48 Bob Cadmus, Grinnell, IA, photoelectric, 15.94s
  42 John Centala, Marion, IA, visual, 17.2s
  24 Doug Slauson, Swisher, IA, seen, but no useable WWV, not recorded
   0 **** Centre Line    ****
  -3 Wayne Osborn, Mt Plesant, MI CMU Obs., R only timed, CCD drift scan
 -53 Maley & Ramotowski, Bernalillo NM, C8, intensified video, 13-14s
 -90 Kevin McKeown, Los Lunas old dump, visual, 9.5s
-164 ***  Predicted Southern limit  ***

The observations will give a result, but not as good as the 2003 or 
even 1996 events becuase a little less than half the diameter of the 
asteroid was covered.  I had hoped to use I-39 in northern Illinois 
and southern Wisconsin to deploy my stations, but when I arrived 
there about 11 pm CDT, a fair amount of cloudiness was still evident 
to the north, and the Astro Meteo forecast had indicated that I-39 
would be close to the edge of the heavy cloud cover to the east (it 
was very cloudy when my flight arrived in Chicago, and during most 
of the drive to I-39).  So I decided instead to deploy farther west, 
taking over an hour more time to get to my southern site, and then 
not leaving more time to go farther north, which I wanted to do 
since as far as I knew, nobody was going to try it north of Guy 
Nason's attempt at +51 (the satellite IR images show that he was 
clouded out, he confirmed that).  If I had used I-39 (and I-90 north 
of Rockford, IL), I would have gone much farther north in the path 
in Wisconsin, possibly as far north as +130, with maybe another 
remote station as well.  The remote station that I did run at -140 
near Brimfield, IL probably failed; I'm having trouble recovering 
the video from the compact flash card, and the unit was dead when I 
arrived back there after the event, having depleted the battery. 

Judging from McKeown's relatively short event compared to the longer 
ones farther north, I suspect that there was some north shift of the 
path.  Many thanks to all who tried to observe this occultation. 

David