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85715 (1998 SB54)
Classification: Main-belt Asteroid          SPK-ID: 2085715
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1392420099518975 3.8409e-08  
a 2.29106487756559 6.329e-09 au
q 1.972052399083159 8.761e-08 au
i 2.804975706364038 4.2813e-06 deg
node 227.2916754617683 6.7844e-05 deg
peri 166.3650710434867 6.9164e-05 deg
M 66.41081590778506 1.2328e-05 deg
tp 2458766.836529194523
(2019-Oct-10.33652919)
4.321e-05 TDB
period 1266.64381908476
3.47
5.2486e-06
1.437e-08
d
yr
n .2842156528740066 1.1777e-09 deg/d
Q 2.61007735604802 7.2102e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1078  
   data-arc span      8309 days (22.75 yr)  
   first obs. used      1997-04-30  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:37:50  

Additional Information
 Earth MOID = .978462 au 
 Jupiter MOID = 2.80188 au 
 T_jup = 3.584 
[ 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 15.7   n/a MPO412683  

85715 (1998 SB54)          Discovered 1998-Sep-16 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 SB54 = 1997 HT10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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