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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2169617430753037 8.8452e-08  
a 2.781437518987319 2.0544e-08 au
q 2.177971986612782 2.4106e-07 au
i 12.17064343830461 7.8693e-06 deg
node 321.8101004486137 3.4952e-05 deg
peri 60.30473407611112 3.9887e-05 deg
M 221.9457185121678 1.7629e-05 deg
tp 2459650.255207654430
(2022-Mar-11.75520765)
8.6309e-05 TDB
period 1694.347123716053
4.64
1.8772e-05
5.139e-08
d
yr
n .2124712197170351 2.354e-09 deg/d
Q 3.384903051361856 2.5001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      411  
   data-arc span      7972 days (21.83 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 12:26:38  

Additional Information
 Earth MOID = 1.20831 au 
 Jupiter MOID = 2.23328 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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