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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04909869099081166 3.7885e-08  
a 3.204688319036231 2.6915e-08 au
q 3.047342317538007 1.3011e-07 au
i 21.31182902749606 5.453e-06 deg
node 348.447670965564 1.1282e-05 deg
peri 277.8779883160558 6.1589e-05 deg
M 34.75789681232084 6.191e-05 deg
tp 2458998.184986770389
(2020-May-28.68498677)
0.00036025 TDB
period 2095.44913364385
5.74
2.6398e-05
7.227e-08
d
yr
n .1718008775397871 2.1643e-09 deg/d
Q 3.362034320534455 2.8236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1258  
   data-arc span      15003 days (41.08 yr)  
   first obs. used      1979-06-15  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49841  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:06:03  

Additional Information
 Earth MOID = 2.10973 au 
 Jupiter MOID = 1.78958 au 
 T_jup = 3.084 
[ 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 13.21   n/a E2021B10  
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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