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66534 (1999 RA112)
Classification: Main-belt Asteroid          SPK-ID: 2066534
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1453509397606472 2.5686e-08  
a 2.466936156770133 9.1104e-09 au
q 2.108364668054075 6.3956e-08 au
i 6.337536856133567 4.0532e-06 deg
node 173.4458130337223 3.722e-05 deg
peri 124.0846077788747 4.1461e-05 deg
M 145.0327712695252 1.9256e-05 deg
tp 2458430.337123241813
(2018-Nov-07.83712324)
7.4467e-05 TDB
period 1415.256937009773
3.87
7.8398e-06
2.146e-08
d
yr
n .2543707722504625 1.4091e-09 deg/d
Q 2.825507645486192 1.0435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1194  
   data-arc span      7945 days (21.75 yr)  
   first obs. used      1998-03-03  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54216  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:00:28  

Additional Information
 Earth MOID = 1.10068 au 
 Jupiter MOID = 2.39518 au 
 T_jup = 3.463 
[ 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 15.3   n/a MPO439518  
diameter diameter 1.870 km 0.519 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.291   0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66534 (1999 RA112)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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