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JPL Small-Body Database Browser
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160551 (1998 QA45)
Classification: Main-belt Asteroid          SPK-ID: 2160551
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21699282470567 1.0517e-07  
a 2.78131026815339 2.2339e-08 au
q 2.177785896683901 2.8471e-07 au
i 12.1704924378547 8.5415e-06 deg
node 321.8109141679126 3.4971e-05 deg
peri 60.38614448831631 4.229e-05 deg
M 136.8301174716468 1.8389e-05 deg
tp 2457956.550538094181
(2017-Jul-22.05053809)		 8.5282e-05 TDB
period 1694.230850412972
4.64		 2.0412e-05
5.589e-08		 d
yr
n .2124858013961022 2.56e-09 deg/d
Q 3.384834639622878 2.7187e-08 au
   Orbit Determination Parameters
   # obs. used (total)      403  
   data-arc span      7529 days (20.61 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53048  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:28:17  

Additional Information
 Earth MOID = 1.20744 au 
 Jupiter MOID = 2.23035 au 
 T_jup = 3.266 
[ 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 15.1   n/a MPO436809  

160551 (1998 QA45)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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