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13720 (1998 QU50)
Classification: Outer Main-belt Asteroid          SPK-ID: 2013720
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04833270483598603 3.8212e-08  
a 3.202554650231439 2.6302e-08 au
q 3.047766521600688 1.3061e-07 au
i 21.29947099916699 5.473e-06 deg
node 348.508181637541 1.1337e-05 deg
peri 278.0905915745938 6.2835e-05 deg
M .1627735791670704 6.3234e-05 deg
tp 2458999.553491183810
(2020-May-30.05349118)
0.0003677 TDB
period 2093.356769397352
5.73
2.5789e-05
7.061e-08
d
yr
n .1719725969614052 2.1186e-09 deg/d
Q 3.357342778862189 2.7574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1230  
   data-arc span      14929 days (40.87 yr)  
   first obs. used      1979-06-15  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:54:53  

Additional Information
 Earth MOID = 2.11113 au 
 Jupiter MOID = 1.79282 au 
 T_jup = 3.085 
[ 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 13.2   n/a MPO473953  
diameter diameter 12.314 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13720 (1998 QU50)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QU50 = 1990 EG10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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