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46981 (1998 SQ160)
Classification: Main-belt Asteroid          SPK-ID: 2046981
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009060359652102 3.6693e-08  
a 2.777690503678031 1.5175e-08 au
q 2.497404765813673 1.0739e-07 au
i 4.283609036060757 4.5696e-06 deg
node 58.87137520830919 5.031e-05 deg
peri 282.6193119262484 5.522e-05 deg
M 273.769528271649 2.392e-05 deg
tp 2459405.525595415441
(2021-Jul-10.02559542)		 0.00011319 TDB
period 1690.924465876713
4.63		 1.3857e-05
3.794e-08		 d
yr
n .212901289954041 1.7447e-09 deg/d
Q 3.05797624154239 1.6707e-08 au
   Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      7971 days (21.82 yr)  
   first obs. used      1998-09-18  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:44:30  

Additional Information
 Earth MOID = 1.49359 au 
 Jupiter MOID = 2.2985 au 
 T_jup = 3.323 
[ 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 14.9   n/a MPO436110  
diameter diameter 3.544 km 1.427 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46981 (1998 SQ160)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

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