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46918 (1998 SC)
Classification: Main-belt Asteroid          SPK-ID: 2046918
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2126886025493771 4.0657e-08  
a 2.742972379101446 1.3846e-08 au
q 2.159573416958819 1.1242e-07 au
i 9.983308525358147 4.9115e-06 deg
node 46.30876647996733 2.1758e-05 deg
peri 175.2241890587605 2.3511e-05 deg
M 49.71350240826676 9.0684e-06 deg
tp 2458771.359192731619
(2019-Oct-14.85919273)
4.1353e-05 TDB
period 1659.321645438926
4.54
1.2564e-05
3.44e-08
d
yr
n .2169561284212454 1.6427e-09 deg/d
Q 3.326371341244073 1.6791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      7961 days (21.80 yr)  
   first obs. used      1998-08-31  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:42:25  

Additional Information
 Earth MOID = 1.15134 au 
 Jupiter MOID = 1.65153 au 
 T_jup = 3.294 
[ 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 13.3   n/a MPO439413  
diameter diameter 9.432 km 0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46918 (1998 SC)          Discovered 1998-Sep-16 by Zoltowski, F. B. at Woomera
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SC = 1999 XL167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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