   Instant of          04:23:11 TDT     JD = 2173224.68300 
Greatest Eclipse:    (=04:12:45 UT)

Gamma = 0.7729             Ephemerides  = VSOP87/ELP2000-82 
Eclipse Magnitude = 0.9404             Lunation No. = -9425 
     Eclipse Type = A                  Saros Series = 100 
                                                 ΔT = 626.0 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:   1237 Dec 19    4.000 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0  -0.1527980  0.7838940 -23.4466305  0.5665740  0.0203340 239.386765 
  1   0.5200031 -0.0325177  0.0016730 -0.0000957 -0.0000952  14.996180 
  2   0.0000311  0.0001290  0.0000060 -0.0000106 -0.0000105   0.000000 
  3  -0.0000064  0.0000005  0.0000000  0.0000000  0.0000000   0.000000
  
                tan f1 = 0.0047572        tan f2 = 0.0047335 

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 =   4.000 TDT.


Circumstances at Greatest Eclipse:  04:12:45 UT

Latitude:   27.3° N      Sun’s Altitude:    39.2°          Path Width = 348.0 km
Longitude: 120.5° E      Sun’s Azimuth:    183.7°    Central Duration = 07m11s 
