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JPL Small-Body Database Browser
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136199 Eris (2003 UB313)
Classification: TransNeptunian Object          SPK-ID: 2136199
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4360652302648969 2.6574e-05  
a 67.86367522266873 0.0024701 au
q 38.27068606007352 0.003095 au
i 44.03962998429013 0.00021987 deg
node 35.95068207405951 0.000109 deg
peri 151.6393009648602 0.0065452 deg
M 205.9887679880158 0.0147 deg
tp 2546358.842332339627
8.0099 TDB
period 204199.4134375544
n .001762982537215223 9.6253e-08 deg/d
Q 97.45666438526395 0.0035472 au
  Orbit Determination Parameters
   # obs. used (total)      1349  
   data-arc span      23832 days (65.25 yr)  
   first obs. used      1954-09-03  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .38423  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:02:55  

Additional Information
 Earth MOID = 37.3254 au 
 Jupiter MOID = 33.0614 au 
 T_jup = 4.749 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H -1.1   n/a MPO385591  
rotation period rot_per 25.9 h n/a LCDB (Rev. 2019-August); 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:
[Roe, H. G.; Pike, R.E.; Brown, M.E. (2008) Icarus 198, 459-464.]

136199 Eris           Discovered 2003 Oct. 21 by M. E. Brown, C. A. Trujillo and D. Rabinowitz at Palomar.
Eris is the Greek goddess of discord and strife. She stirs up jealousy and envy to cause fighting and anger among men. At the wedding of Peleus and Thetis all the gods were invited with the exception of Eris, and, enraged at her exclusion, she spitefully caused a quarrel among the goddesses that led to the Trojan war.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061009/MPCPages.arcLast Updated: 2006-10-14
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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