   Instant of          20:30:55 TDT     JD = 1982929.35500 
Greatest Eclipse:    (=19:30:13 UT)

Gamma = 0.8874             Ephemerides  = VSOP87/ELP2000-82 
Eclipse Magnitude = 0.9112             Lunation No. = -15869 
     Eclipse Type = A                  Saros Series = 82 
                                                 ΔT = 3642.1 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:   716 Dec 18   21.000 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0   0.3246290  0.8613220 -23.6020203  0.5750480  0.0287660 134.572617 
  1   0.5017216 -0.0460930  0.0004670 -0.0000416 -0.0000414  14.996040 
  2   0.0000081  0.0001239  0.0000070 -0.0000099 -0.0000099   0.000000 
  3  -0.0000056  0.0000006  0.0000000  0.0000000  0.0000000   0.000000
  
                tan f1 = 0.0047576        tan f2 = 0.0047339 

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 =  21.000 TDT.


Circumstances at Greatest Eclipse:  19:30:13 UT

Latitude:   39.0° N      Sun’s Altitude:    27.1°          Path Width = 739.7 km
Longitude: 106.1° W      Sun’s Azimuth:    186.2°    Central Duration = 10m35s 
