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85720 (1998 SK60)
Classification: Main-belt Asteroid          SPK-ID: 2085720
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .313991435598591 5.0165e-08  
a 2.559303506817628 1.3954e-08 au
q 1.755704124579453 1.2347e-07 au
i 5.729927215650347 4.4977e-06 deg
node 12.14896235273282 5.0309e-05 deg
peri 351.0621572395847 5.1227e-05 deg
M 107.4012749212248 1.6501e-05 deg
tp 2458554.342651509459
(2019-Mar-11.84265151)
6.5472e-05 TDB
period 1495.48173961996
4.09
1.2231e-05
3.349e-08
d
yr
n .2407251058053609 1.9688e-09 deg/d
Q 3.362902889055804 1.8336e-08 au
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      7853 days (21.50 yr)  
   first obs. used      1998-08-04  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:37:50  

Additional Information
 Earth MOID = .753843 au 
 Jupiter MOID = 2.09528 au 
 T_jup = 3.358 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO453288  
diameter diameter 2.777 km 0.768 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.174   0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

85720 (1998 SK60)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 SK60 = 2002 PM97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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