| 4348 Poulydamas (1988 RU) |
| Classification: Jupiter Trojan SPK-ID: 2004348 |
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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09707999008790108 | 5.273e-08 | |
| a | 5.240058591493765 | 7.8756e-08 | au |
| q | 4.731353755371529 | 2.7443e-07 | au |
| i | 7.958476936313538 | 5.2657e-06 | deg |
| node | 220.104090833661 | 2.9291e-05 | deg |
| peri | 159.6780280141596 | 3.8827e-05 | deg |
| M | 208.3928554445885 | 2.9302e-05 | deg |
| tp | 2460845.599574878817
(2025-Jun-19.09957488) | 0.00038326 | TDB |
| period | 4381.296467948445
12.00 | 9.8773e-05
2.704e-07 | d
yr |
| n | .08216745947999521 | 1.8524e-09 | deg/d |
| Q | 5.748763427616002 | 8.6401e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.6 |
|
n/a |
MPO452226 |
|
| diameter |
diameter |
82.032 |
km |
0.626 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
| rotation period |
rot_per |
9.908 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
[Stephens, R.D.; Coley, D.R.; French, L.M. (2015) Minor Planet Bull. 42, 216-224.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Stephens, R.D.; Coley, D.R.; French, L.M. (2016) Minor Planet Bull. 43, 265-270.]
[Stephens, R.D.; Coley, D.R. (2017) Minor Planet Bull. 44, 252-257.]
[Stephens, R.D.; Warner, B.D. (2018) Minor Planet Bull. 45, 343-347.] |
| geometric albedo |
albedo |
0.033 |
|
0.005 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
|
| 4348 Poulydamas (1988 RU) Discovered 1988-Sep-11 by Shoemaker, C. S. at Palomar |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| 1988 RU = 1977 SP1 = 1977 TV4 = 1983 GJ = 1988 PK4 |
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