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385185 (1993 RO)
Classification: TransNeptunian Object          SPK-ID: 2385185
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1984022057421995 0.00019163  
a 39.18338221887507 0.011818 au
q 31.40931275821058 0.0019791 au
i 3.714185638398098 0.00016439 deg
node 170.2861538173021 0.0013134 deg
peri 187.7676803255544 0.020899 deg
M 33.76471013865043 0.028754 deg
tp 2450597.935928980633
(1997-May-29.43592898)
3.4176 TDB
period 89588.30249528328
245.28
40.531
0.111
d
yr
n .004018381752673052 1.818e-06 deg/d
Q 46.95745167953956 0.014163 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 = 30.4058 au 
 Jupiter MOID = 26.4469 au 
 T_jup = 5.501 
[ 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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