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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2571495253392772 5.441e-08  
a 2.560066539086937 1.0684e-08 au
q 1.901746643723765 1.4257e-07 au
i 12.12783626525292 3.2885e-06 deg
node 143.9599446485071 2.7363e-05 deg
peri 116.3138888471867 2.8418e-05 deg
M 125.7673679079596 7.3531e-06 deg
tp 2458677.814108074556
(2019-Jul-13.31410807)
2.9492e-05 TDB
period 1496.150585188888
4.10
9.3661e-06
2.564e-08
d
yr
n .240617491022503 1.5063e-09 deg/d
Q 3.218386434450109 1.3432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      9850 days (26.97 yr)  
   first obs. used      1994-02-13  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53176  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:41  

Additional Information
 Earth MOID = .920193 au 
 Jupiter MOID = 2.01159 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 15.55   n/a MPCxxxxx  
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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