   Instant of          09:31:04 TDT     JD = 1957119.89700 
Greatest Eclipse:    (=8:19:42 UT)

Gamma = 0.5316             Ephemerides  = VSOP87/ELP2000-82 
Eclipse Magnitude = 1.0502             Lunation No. = -16743 
     Eclipse Type = T                  Saros Series = 97 
                                                 ΔT = 4281.7 s

Lunar Radius   k1 = 0.272488 (Penumbra)        Shift in      Δb =  0.00"
 Constants:    k2 = 0.272281 (Umbra)       Lunar Position:   Δl =  0.00"


Polynomial Besselian Elements for:   646 Apr 21   10.000 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0   0.0173920  0.5983940 12.6652603  0.5368840 -0.0092080 330.815796 
  1   0.5144034  0.2475324  0.0131950 -0.0001035 -0.0001030  15.003710 
  2   0.0000488 -0.0001008 -0.0000030 -0.0000123 -0.0000122   0.000000 
  3  -0.0000081 -0.0000041  0.0000000  0.0000000  0.0000000   0.000000
  
                tan f1 = 0.0046211        tan f2 = 0.0045981 

At time t1 (decimal hours), each Besselian element is evaluated by:

a = a0 + a1*t + a2*t2 + a3*t3  

where: a = x, y, d, l1, l2, or μ; t = t1 - t0 (decimal hours), and t0 =  10.000 TDT.


Circumstances at Greatest Eclipse:  8:19:42 UT

Latitude:   41.0° N      Sun’s Altitude:    57.7°          Path Width = 195.0 km
Longitude:  36.5° E      Sun’s Azimuth:    146.2°    Central Duration = 03m45s 
