   Instant of          20:27:27 TDT     JD = 2443429.35200 
Greatest Eclipse:    (=20:26:39 UT)

Gamma = 0.3836             Ephemerides  = VSOP87/ELP2000-82 
Eclipse Magnitude = 1.0270             Lunation No. = -275 
     Eclipse Type = T                  Saros Series = 143 
                                                 ΔT = 48.4 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:   1977 Oct 12   20.000 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0  -0.1376220  0.4413270 -7.5856099  0.5433080 -0.0028160 123.390251 
  1   0.5402031 -0.1610151 -0.0152250 -0.0000900 -0.0000896  15.003870 
  2   0.0000333  0.0000180  0.0000010 -0.0000121 -0.0000121   0.000000 
  3  -0.0000083  0.0000024  0.0000000  0.0000000  0.0000000   0.000000
  
                tan f1 = 0.0046860        tan f2 = 0.0046627 

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 =  20.000 TDT.


Circumstances at Greatest Eclipse:  20:26:39 UT

Latitude:   14.1° N      Sun’s Altitude:    67.3°          Path Width = 98.6 km
Longitude: 123.6° W      Sun’s Azimuth:    196.9°    Central Duration = 02m37s 
