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118787 (2000 RA99)
Classification: Main-belt Asteroid          SPK-ID: 2118787
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2077547703255806 3.9352e-08  
a 2.670428400679904 1.4099e-08 au
q 2.115634161625743 1.0471e-07 au
i 12.91796037543418 4.9425e-06 deg
node 274.8559602401042 2.1024e-05 deg
peri 176.1475610530593 2.4669e-05 deg
M 114.2105360495353 1.2017e-05 deg
tp 2458494.822647798108
(2019-Jan-11.32264780)
5.2168e-05 TDB
period 1593.932163261412
4.36
1.2624e-05
3.456e-08
d
yr
n .2258565378738508 1.7887e-09 deg/d
Q 3.225222639734065 1.7029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      758  
   data-arc span      7207 days (19.73 yr)  
   first obs. used      2000-09-05  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48309  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:52:19  

Additional Information
 Earth MOID = 1.13245 au 
 Jupiter MOID = 1.99042 au 
 T_jup = 3.315 
[ 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 14.6   n/a MPO320359  
diameter diameter 3.261 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.019 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.347   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118787 (2000 RA99)          Discovered 2000-Sep-05 by LONEOS at Anderson Mesa
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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