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JPL Small-Body Database Browser
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58916 (1998 KM50)
Classification: Main-belt Asteroid          SPK-ID: 2058916
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809223310391926 4.4353e-08  
a 3.119039026912036 3.3013e-08 au
q 2.554735215560895 1.4038e-07 au
i 16.75778912590093 8.7215e-06 deg
node 175.8329179009474 1.8628e-05 deg
peri 116.3026560171055 3.5905e-05 deg
M 244.3654104018293 3.5947e-05 deg
tp 2459246.771348899436
(2021-Feb-01.27134890)
0.00020736 TDB
period 2012.007708180404
5.51
3.1944e-05
8.746e-08
d
yr
n .1789257558687847 2.8407e-09 deg/d
Q 3.683342838263176 3.8986e-08 au
  Orbit Determination Parameters
   # obs. used (total)      461  
   data-arc span      8052 days (22.05 yr)  
   first obs. used      1997-03-11  
   last obs. used      2019-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62318  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:36:50  

Additional Information
 Earth MOID = 1.59002 au 
 Jupiter MOID = 1.91776 au 
 T_jup = 3.126 
[ 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 MPO468490  
diameter diameter 6.247 km 0.392 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58916 (1998 KM50)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KM50 = 1999 RA85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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