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85761 (1998 SC171)
Classification: Main-belt Asteroid          SPK-ID: 2085761
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09942045339204338 4.1464e-08  
a 2.279397456855309 8.7752e-09 au
q 2.052778728234084 9.2688e-08 au
i 4.100900489931852 4.4988e-06 deg
node 221.7363851795383 5.3117e-05 deg
peri 176.7927116688596 5.7628e-05 deg
M 75.74376410192912 2.0641e-05 deg
tp 2458736.032141329441
(2019-Sep-09.53214133)
7.2123e-05 TDB
period 1256.980429349648
3.44
7.2587e-06
1.987e-08
d
yr
n .2864006404509107 1.6539e-09 deg/d
Q 2.506016185476535 9.6477e-09 au
  Orbit Determination Parameters
   # obs. used (total)      677  
   data-arc span      8311 days (22.75 yr)  
   first obs. used      1997-04-30  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55791  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:38:33  

Additional Information
 Earth MOID = 1.06023 au 
 Jupiter MOID = 2.83798 au 
 T_jup = 3.597 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO453288  

85761 (1998 SC171)          Discovered 1998-Sep-25 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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