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91456 (1999 RK58)
Classification: Main-belt Asteroid          SPK-ID: 2091456
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1339739624817556 3.1389e-08  
a 2.7924641708436 1.181e-08 au
q 2.418346680787352 8.8367e-08 au
i 7.234685177845613 4.4675e-06 deg
node 324.0221930410725 2.8156e-05 deg
peri 124.9780545011817 3.5072e-05 deg
M 59.55538948047352 1.8458e-05 deg
tp 2458718.532918226916
(2019-Aug-23.03291823)
8.7379e-05 TDB
period 1704.432635296454
4.67
1.0813e-05
2.96e-08
d
yr
n .2112139796815054 1.3399e-09 deg/d
Q 3.166581660899847 1.3392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1765  
   data-arc span      7570 days (20.73 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:41:12  

Additional Information
 Earth MOID = 1.44354 au 
 Jupiter MOID = 2.02637 au 
 T_jup = 3.304 
[ 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 13.7   n/a MPO453354  
diameter diameter 6.570 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.179   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91456 (1999 RK58)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RK58 = 2000 SA320 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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