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Orbital Elements at Epoch 2455210.5 (2010-Jan-14.0) TDB
Reference: JPL 66 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .367807917750657 | 9.4262e-08 | |
a | 3.64209653546085 | 3.5533e-08 | au |
q | 2.302504592506113 | 3.376e-07 | au |
i | 13.66072398811014 | 9.53e-06 | deg |
node | 117.2894093488922 | 2.043e-05 | deg |
peri | 207.8209315334678 | 2.717e-05 | deg |
M | 271.6645296016229 | 9.9384e-06 | deg |
tp | 2455833.457231084971 (2011-Sep-28.95723108) | 7.1832e-05 | TDB |
period | 2538.783143160912 6.95 | 3.7153e-05 1.017e-07 | d yr |
n | .1418002167573013 | 2.0751e-09 | deg/d |
Q | 4.981688478415587 | 4.8602e-08 | au |
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Additional Model Parameters
Parameter | Value | Uncertainty (1-sigma) |
A1 [EST] | 5.750573803808527E-9 | 8.842E-11 |
A2 [EST] | -1.751196058818756E-10 | 2.644E-12 |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
48P/Johnson Discovered 1949-Aug-25 by Johnson, Ernest Leonard at Union Observatory, South Africa |
discovered on plate/photo taken on discovery date |
Reference: comet.dis | Last Updated: 2003-08-29 |
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[ show close-approach data ]
Alternate Designations
Perihelion Year (est.) | New-Style Desig | Roman Numeral | Year/ Letter | 1990.9 | | 1990 XXIII | 1990h |
1983.9 | | 1983 XVIII | 1983h |
1977.0 | | 1977 I | 1976h |
1970.0 | | 1970 IV | 1970h |
1963.1 | | 1963 IV | 1963c |
1956.1 | 48P/1956 P1 | 1956 V | 1956f |
1949.2 | 48P/1949 Q1 | 1949 II | 1949d |
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