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Orbital Elements at Epoch 2455228.5 (2010-Feb-01.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .3678117401626815 | 9.2951e-08 | |
a | 3.641982389984688 | 3.5222e-08 | au |
q | 2.302418509482578 | 3.3253e-07 | au |
i | 13.66068838516227 | 9.449e-06 | deg |
node | 117.2884957292427 | 2.0401e-05 | deg |
peri | 207.8266217590061 | 2.7055e-05 | deg |
M | 274.2111240551269 | 9.854e-06 | deg |
tp | 2455833.469759048695 (2011-Sep-28.96975905) | 7.1147e-05 | TDB |
period | 2538.663793630759 6.95 | 3.6828e-05 1.008e-07 | d yr |
n | .1418068831734246 | 2.0572e-09 | deg/d |
Q | 4.981546270486797 | 4.8177e-08 | au |
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Additional Model Parameters
Parameter | Value | Uncertainty (1-sigma) |
A1 [EST] | 5.674272798225169E-9 | 8.643E-11 |
A2 [EST] | -1.730162474683401E-10 | 2.599E-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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