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49275 (1998 UO20)
Classification: Main-belt Asteroid          SPK-ID: 2049275
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09499003793776679 3.0175e-08  
a 2.611484117946962 1.1919e-08 au
q 2.363419142509305 7.9818e-08 au
i 12.09873076054284 3.9794e-06 deg
node 227.0605428414193 1.5437e-05 deg
peri 261.9554021934498 2.7006e-05 deg
M 331.0521127585867 2.2525e-05 deg
tp 2459124.449243886676
(2020-Oct-01.94924389)
9.6577e-05 TDB
period 1541.450242191316
4.22
1.0553e-05
2.889e-08
d
yr
n .2335462995472538 1.5989e-09 deg/d
Q 2.85954909338462 1.3051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1521  
   data-arc span      13696 days (37.50 yr)  
   first obs. used      1983-04-15  
   last obs. used      2020-10-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52978  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:33:28  

Additional Information
 Earth MOID = 1.41472 au 
 Jupiter MOID = 2.30117 au 
 T_jup = 3.372 
[ 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 14.1   n/a MPO417158  
diameter diameter 3.472 km 0.679 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.583   0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49275 (1998 UO20)          Discovered 1998-Oct-28 by Korlevic, K. at Visnjan
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UO20 = 2000 EU158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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