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JPL Small-Body Database Browser
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58939 (1998 QY20)
Classification: Main-belt Asteroid          SPK-ID: 2058939
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2187002573875139 4.8959e-08  
a 2.434791948509281 8.9697e-09 au
q 1.902302322685254 1.2115e-07 au
i 1.045992962693919 3.8426e-06 deg
node 267.7016101223156 0.00028678 deg
peri 65.96091774426749 0.00028691 deg
M 157.5237908908832 7.7542e-06 deg
tp 2457993.295661034652
(2017-Aug-27.79566103)
2.9767e-05 TDB
period 1387.686017402572
3.80
7.6683e-06
2.099e-08
d
yr
n .2594246792756743 1.4336e-09 deg/d
Q 2.967281574333307 1.0931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      637  
   data-arc span      14407 days (39.44 yr)  
   first obs. used      1979-08-22  
   last obs. used      2019-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55394  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:36:56  

Additional Information
 Earth MOID = .891546 au 
 Jupiter MOID = 2.40548 au 
 T_jup = 3.472 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO351251  

58939 (1998 QY20)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QY20 = 1979 QO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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