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109281 (2001 QX118)
Classification: Main-belt Asteroid          SPK-ID: 2109281
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2628188092830046 4.2231e-08  
a 2.602170794790934 1.0683e-08 au
q 1.918271364952971 1.0736e-07 au
i 12.24701573875787 5.551e-06 deg
node 314.9709350171157 2.352e-05 deg
peri 160.5095331557693 2.6781e-05 deg
M 61.75954378122872 1.3953e-05 deg
tp 2458737.470958262192
(2019-Sep-10.97095826)
5.8384e-05 TDB
period 1533.211698600521
4.20
9.4418e-06
2.585e-08
d
yr
n .2348012347731233 1.4459e-09 deg/d
Q 3.286070224628898 1.3491e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      7767 days (21.26 yr)  
   first obs. used      1999-02-23  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:32:56  

Additional Information
 Earth MOID = .938543 au 
 Jupiter MOID = 1.82998 au 
 T_jup = 3.333 
[ 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 MPO459510  
diameter diameter 4.811 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.101   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

109281 (2001 QX118)          Discovered 2001-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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