Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.

JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ 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.

[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 711 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8898976614653178 1.337e-09  
a 1.271372810515883 5.7125e-10 au
q .1399811195872101 1.6715e-09 au
i 22.26024404856695 2.5675e-07 deg
node 265.2162359606943 8.9371e-07 deg
peri 322.1855106119202 8.8706e-07 deg
M 313.9389767098837 1.2051e-07 deg
tp 2458667.494459432262
1.95e-07 TDB
period 523.6098478252768
n .68753481527362 4.6338e-10 deg/d
Q 2.402764501444556 1.0796e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -5.44575836135203E-15 5.919E-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)      4245  
   # delay obs. used      8  
   # Doppler obs. used      0  
   data-arc span      13128 days (35.94 yr)  
   first obs. used      1983-10-27  
   last obs. used      2019-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .30342  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2019-Oct-08 08:54:58  

Additional Information
 Earth MOID = .0195545 au 
 Jupiter MOID = 2.73749 au 
 T_jup = 4.510 
[ 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 14.6   n/a MPO250234  
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. 2019-January); 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)]
[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).]
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 ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin