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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3143800913043735 4.7441e-08  
a 2.558630635880998 1.3714e-08 au
q 1.754248102958562 1.167e-07 au
i 5.731543634325218 4.4432e-06 deg
node 12.14126053872128 4.2536e-05 deg
peri 351.0745967189089 4.3552e-05 deg
M 202.7201418838158 1.7037e-05 deg
tp 2460049.601119576299
(2023-Apr-15.10111958)
7.545e-05 TDB
period 1494.892008827886
4.09
1.2019e-05
3.291e-08
d
yr
n .2408200711984998 1.9362e-09 deg/d
Q 3.363013168803433 1.8026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      945  
   data-arc span      8348 days (22.86 yr)  
   first obs. used      1998-08-04  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50657  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:49  

Additional Information
 Earth MOID = .751565 au 
 Jupiter MOID = 2.0968 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 15.37   n/a MPCxxxxx  
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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