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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1339739614900709 3.2488e-08  
a 2.792464171144044 1.2434e-08 au
q 2.418346683816789 9.2326e-08 au
i 7.23468511764637 4.4766e-06 deg
node 324.0221857023847 3.0476e-05 deg
peri 124.978061513201 3.706e-05 deg
M 59.55538959327189 1.8688e-05 deg
tp 2458718.532917647363
(2019-Aug-23.03291765)
8.8379e-05 TDB
period 1704.432635571527
4.67
1.1384e-05
3.117e-08
d
yr
n .2112139796474183 1.4107e-09 deg/d
Q 3.166581658471299 1.4099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1625  
   data-arc span      7487 days (20.50 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:30:17  

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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