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118402 (1999 RK78)
Classification: Main-belt Asteroid          SPK-ID: 2118402
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1420345318850926 5.1154e-08  
a 3.129745229515631 2.6575e-08 au
q 2.685213330921777 1.5789e-07 au
i 5.109178522154365 5.6953e-06 deg
node 179.2686646556094 5.808e-05 deg
peri 229.7322826097559 6.1078e-05 deg
M 221.9895760846116 2.2118e-05 deg
tp 2459775.802697789994
(2022-Jul-15.30269779)
0.00013051 TDB
period 2022.37601541978
5.54
2.5759e-05
7.052e-08
d
yr
n .1780084401986322 2.2673e-09 deg/d
Q 3.574277128109486 3.035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      7186 days (19.67 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57013  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:55:40  

Additional Information
 Earth MOID = 1.69873 au 
 Jupiter MOID = 1.82742 au 
 T_jup = 3.192 
[ 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 15.0   n/a MPO345070  
diameter diameter 3.781 km 1.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.136   0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118402 (1999 RK78)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1999 RK78 = 1999 TE314 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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