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85712 (1998 SA45)
Classification: Main-belt Asteroid          SPK-ID: 2085712
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09868273786762707 4.3306e-08  
a 2.283813562523331 1.1404e-08 au
q 2.05844058739431 1.0025e-07 au
i 1.209857955033607 5.3308e-06 deg
node 18.91186705632231 0.0001844 deg
peri 199.5967554941747 0.00018603 deg
M 243.4130909476745 2.7653e-05 deg
tp 2459408.759863579066
(2021-Jul-13.25986358)
9.8611e-05 TDB
period 1260.635109748903
3.45
9.4425e-06
2.585e-08
d
yr
n .2855703424535796 2.139e-09 deg/d
Q 2.509186537652353 1.253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      545  
   data-arc span      21635 days (59.23 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:39:50  

Additional Information
 Earth MOID = 1.05071 au 
 Jupiter MOID = 2.45934 au 
 T_jup = 3.597 
[ 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 16.4   n/a MPO453287  

85712 (1998 SA45)          Discovered 1998-Sep-25 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 SA45 = 1998 UV46 = 2000 AY59 = 2002 XG114 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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