ANALYSIS OF LUNAR ECLIPSE OBSERVATIONS
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BY BYRON W. SOULSBY
-
THEODORE
LUNAR OBSERVATORY, AUSTRALIA
UMBRAL OBLATENESS ESTIMATES FOR 2004
OCTOBER 28
STATISTICAL RANGE OF E% IS 0 % TO 4 %
|
OBSERVER |
TYPE |
No |
Ecc |
Re |
Rp |
Fo |
SD |
SK' |
|
|
|
|
|
|
|
|
|
|
|
TIM COOPER |
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|
IM |
O |
43.00 |
0.2279 |
0.7527 |
0.7329 |
38.0027 |
0.0289 |
5.5968 |
|
IM |
T |
43.00 |
0.0408 |
0.7152 |
0.7147 |
500.0000 |
0.0051 |
0.1770 |
|
ALEXANDRE AMOR, ANTONIO ROSA CAMPOS, RAQUEL YUMI
SHIDA |
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|
IM |
O |
16.00 |
0.1776 |
0.7399 |
0.7282 |
62.9271 |
0.0032 |
3.3800 |
|
IM |
T |
16.00 |
0.0566 |
0.7159 |
0.7147 |
500.0000 |
0.0072 |
0.3407 |
|
EM |
O |
15.00 |
0.0402 |
0.7266 |
0.7261 |
500.0000 |
0.0254 |
0.1723 |
|
EM |
T |
15.00 |
0.0890 |
0.7164 |
0.7136 |
252.1739 |
0.0544 |
0.8434 |
Legend
OBSERVER,
Name and IM for Immersions, EM for emersion crater timings
TYPE O for observed
oblateness, T for theoretical oblateness
No is the number of
accepted crater timings
Ecc is the computed
eccentricity of the umbra
Re is the computed
equatorial umbral semi-diameter in units of earth's equatorial radius
Rp is the polar
semi-diameter of the umbra in units of earth's equatorial radius
Fo is the computed
oblateness of the umbra (if Fo is unacceptable a value of 500 is shown and an
acceptable value is shown in bold)
SD is the standard
deviation of the resulting Fo
SK' is the increase in
umbral oblateness when compared with the traditional value of the Earth's geoid
(1/298.25)