   Instant of          05:25:38 TDT     JD = 1955199.72600 
Greatest Eclipse:    (=4:13:27 UT)

Gamma = 0.7350             Ephemerides  = VSOP87/ELP2000-82 
Eclipse Magnitude = 0.9972             Lunation No. = -16808 
     Eclipse Type = A                  Saros Series = 80 
                                                 ΔT = 4330.5 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:   641 Jan 17    5.000 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0  -0.3228540  0.7014950 -20.2206001  0.5500780  0.0039200 251.502975 
  1   0.5501050  0.0661108  0.0089370  0.0001245  0.0001239  14.998620 
  2  -0.0000189  0.0001014  0.0000050 -0.0000119 -0.0000118   0.000000 
  3  -0.0000081 -0.0000009  0.0000000  0.0000000  0.0000000   0.000000
  
                tan f1 = 0.0047383        tan f2 = 0.0047147 

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 =   5.000 TDT.


Circumstances at Greatest Eclipse:  4:13:27 UT

Latitude:   27.0° N      Sun’s Altitude:    42.5°          Path Width = 14.6 km
Longitude: 114.5° E      Sun’s Azimuth:    172.8°    Central Duration = 00m17s 
