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249568 (1985 RX)
Classification: Main-belt Asteroid          SPK-ID: 2249568
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2580077455516372 3.5383e-08  
a 2.59498173328557 1.8785e-08 au
q 1.92545634653288 9.3902e-08 au
i 13.67112456479919 9.3983e-06 deg
node 319.1990983560292 1.3754e-05 deg
peri 73.88290854784651 2.4833e-05 deg
M 95.84789822940309 2.0756e-05 deg
tp 2458593.981815123386
(2019-Apr-20.48181512)
8.5666e-05 TDB
period 1526.862343974556
4.18
1.658e-05
4.539e-08
d
yr
n .2357776399559953 2.5602e-09 deg/d
Q 3.264507120038259 2.3632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      12559 days (34.38 yr)  
   first obs. used      1985-09-14  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51793  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:24:55  

Additional Information
 Earth MOID = .980732 au 
 Jupiter MOID = 2.42128 au 
 T_jup = 3.331 
[ 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 16.5   n/a MPO454850  

249568 (1985 RX)          Discovered 1985-Sep-14 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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