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JPL Small-Body Database Browser
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66601 (1999 RH186)
Classification: Main-belt Asteroid          SPK-ID: 2066601
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2572910166797573 6.8801e-08  
a 2.559856365757268 1.3854e-08 au
q 1.901228318857432 1.8266e-07 au
i 12.12800385060876 3.8912e-06 deg
node 143.9612788991382 2.9806e-05 deg
peri 116.2988256260174 3.2462e-05 deg
M 77.64209227073884 8.1849e-06 deg
tp 2458677.861230543077
(2019-Jul-13.36123054)
3.4256e-05 TDB
period 1495.966345155614
4.10
1.2144e-05
3.325e-08
d
yr
n .2406471249609242 1.9535e-09 deg/d
Q 3.218484412657104 1.7418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      731  
   data-arc span      9330 days (25.54 yr)  
   first obs. used      1994-02-13  
   last obs. used      2019-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:59:47  

Additional Information
 Earth MOID = .92135 au 
 Jupiter MOID = 2.01236 au 
 T_jup = 3.358 
[ 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 15.6   n/a MPO493335  
diameter diameter 4.512 km 0.258 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66601 (1999 RH186)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RH186 = 2002 AJ163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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