13 feb iss pass del planetario de madrid

From: Stephan Szyman (szymanss@hotmail.com)
Date: Sun Jan 21 2007 - 12:40:28 EST

  • Next message: Lutz Schindler: "Obs 21.01.07"

    hello all,
    
    I am hoping to demonstrate a high, bright pass of the ISS to an audience at 
    the planetarium of madrid, spain, on or around the evening of the 13th of 
    february (weather permitting, of course).
    
    I have been watching predictions for the pass of that evening since the 
    beginning of this month. on 1 jan HA predicted the maximum elevation of the 
    pass to have been 75 degrees, occurring at 19:48:43 local time.
    
    later,  on 18 jan, HA gave a prediction showing a drop to a maximum 
    elevation of only 67 degrees, occurring four minutes earlier at  19:44:39 
    local time.
    
    today, 21 jan,  HA shows 63 degrees at 19:42:30.
    
    I know the main reason for these adjustments, this decline, is the drag on 
    the spacecraft and a steady drop in altitude.  my question is, will it be 
    possible to give  an accurate time and maximum elevation now for the  pass  
    which will occur for  el planetario de madrid ( 40.3911°N, 3.6839°W) on the 
    13th of february?
    
    I originally chose that date because the pass was a high, bright one, but I 
    don't want to have a crowd of people gathered outside to watch the station 
    go by just near the horizon.  it seems that if this rate of decline 
    continues steadily until the 13th,  it won't be above even 40 degrees at 
    maximum elevation?  should I instead plan for one of the other days close to 
    the 13th, which might provide a better viewing opportunity?
    
    in any case,  with my luck,  it will likely be overcast at the time of the 
    pass, anyway,  but one can always hope.
    
    any assistance with this question will be greatly appreciated.
    
    clear skies!
    
    stephan szyman
    chicago IL USA
    41.6840N, 87.7000W; 188 msl
    
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