   Instant of          05:51:33 TDT     JD = 2684310.74400 
Greatest Eclipse:    (=05:16:21 UT)

Gamma = -1.0525            Ephemerides  = VSOP87/ELP2000-82 
Eclipse Magnitude = 0.9013             Lunation No. = 7882 
     Eclipse Type = P                  Saros Series = 139 
                                                 ΔT = 2111.5 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:   2637 Apr 17    6.000 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0   0.5415370 -0.9059510 10.4811001  0.5446060 -0.0015240 270.066162 
  1   0.4996959  0.2501902  0.0140880 -0.0001176 -0.0001170  15.003360 
  2   0.0000184 -0.0000071 -0.0000030 -0.0000119 -0.0000118   0.000000 
  3  -0.0000074 -0.0000039  0.0000000  0.0000000  0.0000000   0.000000
  
                tan f1 = 0.0046723        tan f2 = 0.0046490 

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 =   6.000 TDT.


Circumstances at Greatest Eclipse:  05:16:21 UT

Latitude:   61.6° S      Sun’s Altitude:     0.0°          Path Width = 0.0 km
Longitude: 170.8° E      Sun’s Azimuth:    292.4°    Central Duration = 00m00s 
