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385185 (1993 RO)
Classification: TransNeptunian Object          SPK-ID: 2385185
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1996923055760677 0.00019216  
a 39.25978836360243 0.011869 au
q 31.41991070884619 0.0019689 au
i 3.712892556767835 0.00016431 deg
node 170.2545757988611 0.0013135 deg
peri 188.0862609664644 0.020521 deg
M 34.2624915826954 0.028725 deg
tp 2450649.108315143050
(1997-Jul-19.60831514)
3.3566 TDB
period 89850.47100612285
246.00
40.746
0.1116
d
yr
n .004006656792878335 1.817e-06 deg/d
Q 47.09966601835868 0.014239 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      9568 days (26.20 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .57804  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:21:59  

Additional Information
 Earth MOID = 30.4149 au 
 Jupiter MOID = 26.4587 au 
 T_jup = 5.504 
[ 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 8.4   n/a MPC41519  

385185 (1993 RO)          Discovered 1993-Sep-14 by Jewitt, D. C., Luu, J. X. at Mauna Kea
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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