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JPL Small-Body Database Browser
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49081 (1998 RA64)
Classification: Main-belt Asteroid          SPK-ID: 2049081
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1156455165102174 3.8294e-08  
a 2.423983556440239 8.2498e-09 au
q 2.143660726043434 9.3011e-08 au
i 3.339760795413387 3.9891e-06 deg
node 120.9077554912817 7.6396e-05 deg
peri 14.88656973066966 7.9169e-05 deg
M 39.0524892687379 1.9193e-05 deg
tp 2458450.966275051700
(2018-Nov-28.46627505)
7.3519e-05 TDB
period 1378.456072567986
3.77
7.0372e-06
1.927e-08
d
yr
n .2611617498476686 1.3333e-09 deg/d
Q 2.704306386837045 9.2039e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1850  
   data-arc span      19460 days (53.28 yr)  
   first obs. used      1966-01-30  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49742  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:39:58  

Additional Information
 Earth MOID = 1.1582 au 
 Jupiter MOID = 2.31879 au 
 T_jup = 3.500 
[ 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 14.3   n/a MPO474370  
diameter diameter 9.820 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.046   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

49081 (1998 RA64)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RA64 = 1966 BY = 2000 CW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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