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3200 Phaethon (1983 TB)
Classification: Apollo [NEO, PHA]          SPK-ID: 2003200
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 750 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8897896754743654 1.0181e-09  
a 1.271348357033642 1.3122e-09 au
q .14011571501381 1.1951e-09 au
i 22.25709999589516 3.2937e-07 deg
node 265.2199432557999 1.0343e-06 deg
peri 322.1801783546073 9.7414e-07 deg
M 141.225989986996 9.4469e-07 deg
tp 2459191.096706413463
(2020-Dec-07.59670641)
1.0623e-06 TDB
period 523.5947412934544
1.43
8.106e-07
2.219e-09
d
yr
n .68755465173443 1.0644e-09 deg/d
Q 2.402580999053473 2.4797e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -5.720761407785491E-15 8.74E-16
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
NN [SET] 0. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      4971  
   # delay obs. used      8  
   # Doppler obs. used      0  
   data-arc span      13781 days (37.73 yr)  
   first obs. used      1983-10-27  
   last obs. used      2021-07-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .30047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-21 05:50:04  

Additional Information
 Earth MOID = .0194531 au 
 Jupiter MOID = 2.73523 au 
 T_jup = 4.510 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.32   n/a E2021B10  
diameter diameter 6.25 km 0.15 Taylor et al, "Arecibo Radar Observations of near-Earth asteroid (3200) Phaethon during the 2017 apparition", Planetary and Space Science. 10.1016/j.pss.2019.01.009 Delay-depth and 5% bandwidth variations suggest slightly oblong equatorial dimensions of 6.1 x 6.4 km. Thermophysical modeling by Hanus et al. (2016) found effective diameter of 5.1 +/- 0.2km.
rotation period rot_per 3.604 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Meech, K.J.; Hainaut, O.R.; Buie, M.W. (1996) Abstracts of ACM 1996, 42.]
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Krugly, Yu.N.; Bel'skaya, I.N.; Shevchenko, V.G.; et al. (2002) Icarus 158, 294-304.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2004) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pan, S.K-S.; Abe, S.; Kinos, D. (2012) ACM 2012, #6294.]
[Ansdell, M.; Meech, K.J.; Hainaut, O.; Buie, M.W.; et al. (2014) Astrophys. J. 793, A50.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 115-127.]
[Hanus, J.; Delbo, M.; Vokrouhlicky, D.; Pravec, P.; et al. (2016). Astron. Astrophys. 586, A108.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 98-107.]
[Hanus, J.; Vokrouhlicky, D.; Delbo, M.; Farnocchia, D.; et al. (2018) Astron. Astrophys. 620, L8.]
[Kim, M.-J.; Lee, H.-J.; Lee, S.-M.; Kim, D.-H; et al. (2018) Astron. Astrophys. 619, A123.]
[Schmidt, R.E. (2018) Minor Planet Bull. 45, 131.]
[Warner, B.D; Stephens, R.D. (2018) (3200 Phaethon). http://www.planetarysciences.org/PHP/CS3_Lightcurves.php]
[Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 105-120.]
geometric albedo albedo 0.1066   0.011 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3200 Phaethon (1983 TB)          Discovered 1983-Oct-11 by IRAS
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
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