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13719 (1998 QU45)
Classification: Main-belt Asteroid          SPK-ID: 2013719
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .114945714452012 2.942e-08  
a 2.154416492644892 5.7659e-09 au
q 1.906775549670627 6.3284e-08 au
i 5.131086051854676 3.6621e-06 deg
node 198.9925138622841 3.2073e-05 deg
peri 97.68910252143455 3.6266e-05 deg
M 354.7235852418835 1.6932e-05 deg
tp 2459017.428923796889
(2020-Jun-16.92892380)
5.4323e-05 TDB
period 1155.029095752032
3.16
4.6368e-06
1.269e-08
d
yr
n .3116804601061642 1.2512e-09 deg/d
Q 2.402057435619157 6.4286e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1924  
   data-arc span      10708 days (29.32 yr)  
   first obs. used      1991-04-08  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49486  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:46:08  

Additional Information
 Earth MOID = .899405 au 
 Jupiter MOID = 2.75649 au 
 T_jup = 3.688 
[ 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 15.0   n/a MPO473953  
diameter diameter 2.752 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.233   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13719 (1998 QU45)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 QU45 = 1991 GB4 = 1997 EZ40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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