Besseliam Elements for the Partial Solar Eclipse of 2011 Jul 01

Fred Espenak

The following table contains the Besseliam elements for the Partial Solar Eclipse of 2011 Jul 01 .

The geographic coordinates of the eclipse path are listed in the . The global visibility of the eclipse is shown on an Orthographic Map . The features of this map are described in the Key to Solar Eclipse Path Tables. The path of the eclipse is displayed in greater detail on a .


            

Besselian Elements for the Partial Solar Eclipse of 2011 Jul 01

Non-Central Eclipse

Equatorial Conjunction: 09:06:38.7 TDT J.D. = 2455743.879614 (Sun & Moon in R.A.) (=09:05:32.3 UT) Ecliptic Conjunction: 08:55:01.7 TDT J.D. = 2455743.871548 (Sun & Moon in Ec. Lo.) (=08:53:55.3 UT) Instant of 08:39:30.3 TDT J.D. = 2455743.860767 Greatest Eclipse: (=08:38:23.9 UT) --------------------------------------------------------------------------- Gamma = -1.4917 Ephemerides = JPL DE405 Eclipse Magnitude = 0.0971 Lunation No. = 142 ΔT = 66.4 s Saros Series = 156 ( 1/69) Lunar Radius k1 = 0.272508 (Penumbra) Shift in Δb = 0.00" Constants: k2 = 0.272281 (Umbra) Lunar Position: Δl = 0.00" --------------------------------------------------------------------------- Geocentric Coordinates of Sun & Moon at Greatest Eclipse (JPL DE405): Sun: R.A. = 06h40m01.7s Moon: R.A. = 06h39m02.0s Dec. =+23°07'05.9" Dec. =+21°42'47.5" Semi-Diameter = 15'43.9" Semi-Diameter = 15'38.6" Eq.Hor.Par. = 08.6" Eq.Hor.Par. = 0°57'24.6" --------------------------------------------------------------------------- Polynomial Besselian Elements for: 2011 Jul 01 09:00:00.0 TDT (=t0) n x y d l1 l2 μ 0 -0.059304 -1.502029 23.12098 0.547788 0.001623 314.05319 1 0.5355095 -0.0881827 -0.002540 -0.0001272 -0.0001266 14.999359 2 -0.0000039 -0.0000833 -0.000006 -0.0000111 -0.0000110 3 -0.0000073 0.0000014 Tan ƒ1 = 0.0045990 Tan ƒ2 = 0.0045761 At time t1 (decimal hours), each Besselian element is evaluated by: a = a0 + a1*t + a2*t^2 + a3*t^3 (or a = Σ [an*t^n]; n = 0 to 3) where: a = x, y, d, l1, l2, or μ t = t1 - t0 (decimal hours) and t0 = 9.000 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. The Besselian elements are valid over the period 6.00 ≤ t0 ≤ 12.00 TDT. Note that all times are expressed in Terrestrial Dynamical Time (TDT). Saros Series 156: Member 1 of 69 eclipses in series.

Additional Links: Partial Solar Eclipse of 2011 Jul 01


Eclipse Predictions

Predictions for the Partial Solar Eclipse of 2011 Jul 01 were generated using the JPL DE405 solar and lunar ephemerides and a value of ΔT = 66.4 seconds.

Acknowledgments

All eclipse calculations are by Fred Espenak, and he assumes full responsibility for their accuracy. Permission is freely granted to reproduce this data when accompanied by an acknowledgment:

"Eclipse Predictions by Fred Espenak, NASA's GSFC"

For more information, see: NASA Copyright Information


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