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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1007067293774172 3.6465e-08  
a 2.779330896573588 1.5067e-08 au
q 2.499433572122057 1.0649e-07 au
i 4.280655934705196 4.4307e-06 deg
node 58.80306850482663 5.0355e-05 deg
peri 281.9933799781577 5.4924e-05 deg
M 358.6313329939255 2.2733e-05 deg
tp 2459402.934341498489
(2021-Jul-07.43434150)
0.00010688 TDB
period 1692.422575524487
4.63
1.3762e-05
3.768e-08
d
yr
n .2127128326023628 1.7297e-09 deg/d
Q 3.059228221025119 1.6584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      8360 days (22.89 yr)  
   first obs. used      1998-09-18  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57415  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 00:53:52  

Additional Information
 Earth MOID = 1.49466 au 
 Jupiter MOID = 2.29241 au 
 T_jup = 3.322 
[ 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 14.93   n/a MPO614063  
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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