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120870 (1998 RM16)
Classification: Main-belt Asteroid          SPK-ID: 2120870
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635341090226574 4.2185e-08  
a 2.170657760478994 8.9924e-09 au
q 1.815681177625944 9.5227e-08 au
i 2.126800658588905 3.7893e-06 deg
node 283.4952782727593 0.00010843 deg
peri 39.78371834036714 0.00010893 deg
M 295.5474684093933 1.1696e-05 deg
tp 2459209.633179120038
(2020-Dec-26.13317912)
3.8512e-05 TDB
period 1168.114620561872
3.20
7.2588e-06
1.987e-08
d
yr
n .3081889342561583 1.9151e-09 deg/d
Q 2.525634343332043 1.0463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      8503 days (23.28 yr)  
   first obs. used      1997-03-03  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5546  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:57:43  

Additional Information
 Earth MOID = .80389 au 
 Jupiter MOID = 2.77431 au 
 T_jup = 3.671 
[ 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 16.8   n/a MPO432709  

120870 (1998 RM16)          Discovered 1998-Sep-11 by ODAS at Caussols
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 RM16 = 1997 EC29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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