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JPL Small-Body Database Browser
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59909 (1999 RK155)
Classification: Main-belt Asteroid          SPK-ID: 2059909
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03543927758518618 5.1682e-08  
a 3.070102826756294 1.9972e-08 au
q 2.961300600463813 1.5792e-07 au
i 8.767182298668111 5.6003e-06 deg
node 313.7003203848055 2.8464e-05 deg
peri 241.723428439574 7.6246e-05 deg
M 21.83659784732516 7.1588e-05 deg
tp 2458481.318105566879
(2018-Dec-28.81810557)
0.0003908 TDB
period 1964.842797211617
5.38
1.9173e-05
5.249e-08
d
yr
n .1832207647914071 1.7878e-09 deg/d
Q 3.178905053048775 2.0679e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1643  
   data-arc span      7213 days (19.75 yr)  
   first obs. used      1999-08-08  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48526  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:16:06  

Additional Information
 Earth MOID = 1.97459 au 
 Jupiter MOID = 1.86009 au 
 T_jup = 3.212 
[ 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 12.8   n/a MPO347919  
diameter diameter 8.885 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59909 (1999 RK155)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/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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