   Instant of          09:54:40 TDT     JD = 2484830.91300 
Greatest Eclipse:    (=09:51:38 UT)

Gamma = 1.1779             Ephemerides  = VSOP87/ELP2000-82 
Eclipse Magnitude = 0.6558             Lunation No. = 1127 
     Eclipse Type = P                  Saros Series = 122 
                                                 ΔT = 181.9 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:   2091 Feb 18   10.000 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0  -0.2600120  1.1497459 -11.4719105  0.5691080  0.0228560 326.559021 
  1   0.4957125  0.1324781  0.0144480  0.0000760  0.0000756  15.002130 
  2  -0.0000177  0.0000155  0.0000030 -0.0000102 -0.0000102   0.000000 
  3  -0.0000058 -0.0000015  0.0000000  0.0000000  0.0000000   0.000000
  
                tan f1 = 0.0047326        tan f2 = 0.0047090 

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 =  10.000 TDT.


Circumstances at Greatest Eclipse:  09:51:38 UT

Latitude:   71.2° N      Sun’s Altitude:     0.0°          Path Width = 0.0 km
Longitude:  17.8° W      Sun’s Azimuth:    128.2°    Central Duration = 00m00s 
