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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1390241002504212 3.8607e-08  
a 2.290629624225074 6.6711e-09 au
q 1.972176901710223 8.8159e-08 au
i 2.80519767591883 4.3116e-06 deg
node 227.2931772108176 7.1933e-05 deg
peri 166.3676760621889 7.3239e-05 deg
M 312.7095523203367 1.2931e-05 deg
tp 2458766.841901231628
(2019-Oct-10.34190123)
4.5657e-05 TDB
period 1266.282883364161
3.47
5.5318e-06
1.515e-08
d
yr
n .2842966644574554 1.242e-09 deg/d
Q 2.609082346739925 7.5986e-09 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      8219 days (22.50 yr)  
   first obs. used      1997-04-30  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51884  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:13:52  

Additional Information
 Earth MOID = .977932 au 
 Jupiter MOID = 2.80174 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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