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136976 (1998 RA61)
Classification: Main-belt Asteroid          SPK-ID: 2136976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1154513311395168 4.1451e-08  
a 2.977513481163505 1.8302e-08 au
q 2.633755586277322 1.2334e-07 au
i 11.04712081846628 4.7314e-06 deg
node 347.7720438497566 2.2215e-05 deg
peri 328.7408356721563 2.9619e-05 deg
M 121.426463527214 2.1152e-05 deg
tp 2458367.520161101914
(2018-Sep-06.02016110)
0.00010804 TDB
period 1876.631628592562
5.14
1.7303e-05
4.737e-08
d
yr
n .191833066497975 1.7688e-09 deg/d
Q 3.321271376049688 2.0415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      567  
   data-arc span      8711 days (23.85 yr)  
   first obs. used      1996-03-20  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5339  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:43:16  

Additional Information
 Earth MOID = 1.62814 au 
 Jupiter MOID = 2.04438 au 
 T_jup = 3.223 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO502857  

136976 (1998 RA61)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 RA61 = 2003 RC14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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