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85702 (1998 RA74)
Classification: Main-belt Asteroid          SPK-ID: 2085702
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1477091833439193 3.8699e-08  
a 2.255354666189607 9.49e-09 au
q 1.922218070295842 8.9019e-08 au
i 7.604869305821623 4.6872e-06 deg
node 332.133722580242 2.774e-05 deg
peri 18.69883864947495 3.0833e-05 deg
M 158.1406191390492 1.4262e-05 deg
tp 2458457.047450077656
(2018-Dec-04.54745008)
4.8306e-05 TDB
period 1237.145263735307
3.39
7.8084e-06
2.138e-08
d
yr
n .2909925055308812 1.8366e-09 deg/d
Q 2.588491262083372 1.0892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      731  
   data-arc span      7906 days (21.65 yr)  
   first obs. used      1998-08-28  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50138  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:39:50  

Additional Information
 Earth MOID = .917331 au 
 Jupiter MOID = 2.82363 au 
 T_jup = 3.598 
[ 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 16.0   n/a MPO468827  

85702 (1998 RA74)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 RA74 = 2000 DU65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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