[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1400878069492676 | 1.9958e-05 | |
a | 46.30983004629665 | 0.0013362 | au |
q | 39.82238751491765 | 0.00024051 | au |
i | 9.842127848413446 | 5.2523e-05 | deg |
node | 334.9388534210384 | 0.00012842 | deg |
peri | 177.7639495707785 | 0.0025924 | deg |
M | 23.51143466254331 | 0.0026371 | deg |
tp | 2451482.802657180708 (1999-Oct-31.30265718) | 0.61327 | TDB |
period | 115108.7154935099 315.15 | 4.9821 0.01364 | d yr |
n | .003127478214456295 | 1.3536e-07 | deg/d |
Q | 52.79727257767563 | 0.0015234 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2457399.5 (2016-Jan-12.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1489853008928052 | 2.0078e-05 | |
q | 39.80002450965754 | 0.00023976 | au |
tp | 2451548.819706132552 (2000-Jan-05.31970613) | 0.572 | TDB |
node | 334.8105556505012 | 0.00012914 | deg |
peri | 178.0411054252126 | 0.0024308 | deg |
i | 9.797224399127407 | 5.2296e-05 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
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|
e |
q |
tp |
node |
peri |
i |
e |
4.031320680981165E-10 |
4.427343440635802E-9 |
5.732435556135785E-6 |
6.325768235137038E-11 |
2.378324715608757E-8 |
4.025053166743035E-11 |
q |
4.427343440635802E-9 |
5.748318126469729E-8 |
.0001076699946008891 |
5.946694636625063E-10 |
4.529837529025745E-7 |
4.037651566946358E-10 |
tp |
5.732435556135785E-6 |
.0001076699946008891 |
.3271834236934436 |
3.132264171093286E-7 |
.001388349430368861 |
3.359004700552139E-7 |
node |
6.325768235137038E-11 |
5.946694636625063E-10 |
3.132264171093286E-7 |
1.667630770565136E-8 |
-1.519010007048724E-8 |
6.586371897098428E-9 |
peri |
2.378324715608757E-8 |
4.529837529025745E-7 |
.001388349430368861 |
-1.519010007048724E-8 |
5.908987098578288E-6 |
-5.115350996472776E-9 |
i |
4.025053166743035E-11 |
4.037651566946358E-10 |
3.359004700552139E-7 |
6.586371897098428E-9 |
-5.115350996472776E-9 |
2.734841873505823E-9 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
5.8 |
|
n/a |
MPO453222 |
|
rotation period |
rot_per |
6.65 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Lacerda, P.; Luu, J. (2006) Astron. J. 131, 2314-2326.] |
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79983 (1999 DF9) Discovered 1999-Feb-20 by Luu, J. X., Trujillo, C. A., Jewitt, D. C. at Kitt Peak |
Reference: 20040504/Numbers.arc | Last Updated: 2004-07-16 |
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