Eclipse Banner

Blue Bar

Annular Solar Eclipse of 2003 May 31

Table 1 - Elements of the Eclipse

Blue Bar


Geocentric Conjunction      04:39:20.37 TDT     J.D. = 2452790.693986
 of Sun & Moon in R.A.:   (=04:38:15.67 UT)

      Instant of            04:09:22.42 TDT     J.D. = 2452790.673176
   Greatest Eclipse:      (=04:08:17.72 UT)


Geocentric Coordinates of Sun & Moon at Greatest Eclipse (DE200/LE200):

Sun:       R.A. = 04h30m33.482s       Moon:      R.A. = 04h29m35.526s
           Dec. =+21°50´57.15"                   Dec. =+22°43´13.15"
  Semi-Diameter =    15´46.51"          Semi-Diameter =    14´48.14"
    Eq.Hor.Par. =       08.67"            Eq.Hor.Par. =  0°54´19.28"
         Δ R.A. =       10.215s/h              Δ R.A. =      126.148s/h
         Δ Dec. =       21.78"/h               Δ Dec. =      436.27"/h


Lunar Radius   k1 = 0.2725076 (Penumbra)        Shift in      Δb =  0.00"
 Constants:    k2 = 0.2722810 (Umbra)       Lunar Position:   Δl =  0.00"

Geocentric Libration:   l =  -2.6°       Brown Lun. No. =  995
(Optical + Physical)    b =  -1.2°         Saros Series =  147 (22/80)
                        c =  -7.2°            Ephemeris = (DE200/LE200)

Eclipse Magnitude = 0.93842        Gamma = 0.99598        ΔT =    64.7 s


Polynomial Besselian Elements for:   2003 May 31   04:00:00.0 TDT  (=t0)

  n        x          y         d          l1         l2          μ

  0  -0.3238544  0.9452118 21.8459854  0.5644051  0.0181570 240.614990
  1   0.4939022  0.1263288  0.0057463 -0.0000530 -0.0000527  14.999788
  2   0.0000545 -0.0001691 -0.0000051 -0.0000098 -0.0000098  -0.000001
  3  -0.0000056 -0.0000016  0.0000000  0.0000000  0.0000000   0.000000

                 Tan f1 = 0.0046126    Tan f2 = 0.0045896

At time t1 (decimal hours), each Besselian element is evaluated by:

            a = a0 + a1*t + a2*t2 + a3*t3    (or a = Σ [an*tn]; n = 0 to 3)

    where:  a = x, y, d, l1, l2, or μ
            t = t1 - t0  (decimal hours) and t0 = 4.000 TDT


The Besselian elements were derived from a least-squares fit to elements 
calculated at five uniformly spaced times over a six hour period 
centered at t0. Thus the elements are valid over the period 
1.00 < t0 < 7.00 TDT.

Note that all times are expressed in Terrestrial Dynamical Time (TDT).

       Saros Series 147:  Member 22 of 80 eclipses in series.




Table adapted from NASA TP 2002-211618 "Annular and Total Solar Eclipses of 2003."



Blue Bar

Return to Annular Solar Eclipse of 2003

Blue Bar

NASA logo
WebMaster: Fred Espenak
Planetary Systems Branch - Code 693
e-mail: espenak@gsfc.nasa.gov

NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771 USA

Last revised: 2003 Jan 03 - F. Espenak