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214873 (2007 RM18)
Classification: Inner Main-belt Asteroid          SPK-ID: 2214873
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05831093194361939 6.5603e-08  
a 1.935300486106556 1.1451e-08 au
q 1.822451311170743 1.2663e-07 au
i 21.61452637126248 9.6983e-06 deg
node 181.5145536623726 1.3247e-05 deg
peri 318.0382503671308 6.7961e-05 deg
M 117.0643887512632 6.7319e-05 deg
tp 2458680.725862323914
(2019-Jul-16.22586232)
0.00018412 TDB
period 983.3792393346328
2.69
8.7281e-06
2.39e-08
d
yr
n .3660846045962702 3.2492e-09 deg/d
Q 2.048149661042369 1.2119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      7573 days (20.73 yr)  
   first obs. used      1998-04-15  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59573  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:29:31  

Additional Information
 Earth MOID = .847963 au 
 Jupiter MOID = 2.94347 au 
 T_jup = 3.821 
[ 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 17.4   n/a MPO401686  

214873 (2007 RM18)          Discovered 2007-Sep-02 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2007 RM18 = 1999 RA191 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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