911 Agamemnon (A919 FB) |
Classification: Jupiter Trojan SPK-ID: 2000911 |
[ hide orbit diagram ]
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 94 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .06650286036443387 | 4.5527e-08 | |
a | 5.278194911995404 | 6.1911e-08 | au |
q | 4.927179852786708 | 2.779e-07 | au |
i | 21.7627058225596 | 5.9093e-06 | deg |
node | 338.0053060657693 | 1.0781e-05 | deg |
peri | 80.63383873510314 | 4.4923e-05 | deg |
M | 301.4260809295118 | 4.4384e-05 | deg |
tp | 2459721.156560339873 (2022-May-21.65656034) | 0.00054968 | TDB |
period | 4429.212964393712 12.13 | 7.7929e-05 2.134e-07 | d yr |
n | .08127854833218166 | 1.43e-09 | deg/d |
Q | 5.629209971204099 | 6.6028e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
7.9 |
|
n/a |
MPO502161 |
IRAS observations used: 18 |
diameter |
diameter |
131.038 |
km |
1.195 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
rotation period |
rot_per |
6.592 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Stephens, R.D. (2009) Minor Planet Bull. 36, 59-62.] [Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.] [French, L.M.; Stephens, R.D.; Coley, D.R.; Megna, R.; Wasserman, L.H. (2012) Minor Planet Bull. 39, 183-187.] [Stephens, R.D.; Coley, D.R.; French, L.M. (2014) Minor Planet Bull. 41, 210-212.] |
geometric albedo |
albedo |
0.072 |
|
0.010 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
B-V |
BV |
0.760 |
|
0.014 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=1.96, mean=5.16, max.=8.36) deg. |
U-B |
UB |
0.215 |
|
0.021 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=1.96, mean=5.16, max.=8.36) deg. |
Tholen spectral type |
spec_T |
D |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices; used ground-based radiometric albedo |
|
911 Agamemnon (A919 FB) Discovered 1919-Mar-19 by Reinmuth, K. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
|