| 9712 Nauplius (1973 SO1) |
| Classification: Jupiter Trojan SPK-ID: 2009712 |
[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .127275067871213 | 3.931e-08 | |
| a | 5.231939755068014 | 9.0396e-08 | au |
| q | 4.566044267643635 | 2.5571e-07 | au |
| i | 8.466256465466936 | 6.3203e-06 | deg |
| node | 176.5845812068718 | 2.596e-05 | deg |
| peri | 273.9606320789708 | 3.9361e-05 | deg |
| M | 262.0934276476213 | 3.2957e-05 | deg |
| tp | 2460189.281052236803
(2023-Sep-01.78105224) | 0.00041757 | TDB |
| period | 4371.117980363569
11.97 | 0.00011328
3.101e-07 | d
yr |
| n | .08235879278876315 | 2.1345e-09 | deg/d |
| Q | 5.897835242492394 | 1.019e-07 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2457178.5 (2015-Jun-05.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1270243045858969 | 3.9223e-08 | |
| q | 4.566537498709227 | 2.5508e-07 | au |
| tp | 2455824.445201201548
(2011-Sep-19.94520120) | 0.00036489 | TDB |
| node | 176.666066665568 | 2.5971e-05 | deg |
| peri | 274.1772331335196 | 3.9459e-05 | deg |
| i | 8.464379774896255 | 6.3194e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
1.53842009165328E-15 |
-9.649775733902408E-15 |
-1.518877278329863E-12 |
-3.299354841709295E-15 |
-1.75520452907269E-13 |
9.638566894985964E-17 |
| q |
-9.649775733902408E-15 |
6.506780052157948E-14 |
1.79834722465375E-11 |
3.274202579390579E-14 |
1.92190091780264E-12 |
1.666350557122377E-15 |
| tp |
-1.518877278329863E-12 |
1.79834722465375E-11 |
1.331470395065199E-7 |
6.290505295116987E-11 |
1.082429837429956E-8 |
-3.564195525177986E-12 |
| node |
-3.299354841709295E-15 |
3.274202579390579E-14 |
6.290505295116987E-11 |
6.744992852495834E-10 |
-6.614056652213834E-10 |
1.014467918872445E-12 |
| peri |
-1.75520452907269E-13 |
1.92190091780264E-12 |
1.082429837429956E-8 |
-6.614056652213834E-10 |
1.557021411462598E-9 |
-1.227936565632878E-12 |
| i |
9.638566894985964E-17 |
1.666350557122377E-15 |
-3.564195525177986E-12 |
1.014467918872445E-12 |
-1.227936565632878E-12 |
3.993477557608233E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
10.9 |
|
n/a |
MPO452307 |
|
| diameter |
diameter |
33.423 |
km |
4.321 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
| rotation period |
rot_per |
19.41 |
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:
[Stephens, R.D.; Coley, D.R.; French, L.M. (2014) Minor Planet Bull. 41, 210-212.] |
| geometric albedo |
albedo |
0.083 |
|
0.026 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
|
| 9712 Nauplius | Discovered 1973 Sept. 19 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. |
| Nauplius, a son of Poseidon and Amymone, was king of Euboea and father of Palamedes. After a false accusation by Odysseus caused the death of Palamedes, Nauplius sailed to Troy to seek vengeance. But this was denied by Agamemnon, so Nauplius returned to Greece, together with his surviving son Oceax. However, Nauplius earned his revenge. He misled the Greeks returning from Troy by placing lights on the cliffs of his land, so that many ships ran aground. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 19990402/MPCPages.arc | Last Updated: 2010-06-11 |
|
Alternate Designations
| 1973 SO1 = 1978 EO9 = 1989 EB8 |
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