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49274 (1998 UB20)
Classification: Main-belt Asteroid          SPK-ID: 2049274
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09805377524480537 3.9637e-08  
a 2.639896679384916 1.0964e-08 au
q 2.381044843714999 1.0664e-07 au
i .6999950437774707 3.3481e-06 deg
node 96.84275192627301 0.00035624 deg
peri 280.188117298152 0.00035681 deg
M 30.17826605242855 1.8894e-05 deg
tp 2458869.167986190695
(2020-Jan-20.66798619)
8.2166e-05 TDB
period 1566.674668757023
4.29
9.7603e-06
2.672e-08
d
yr
n .2297860603603291 1.4316e-09 deg/d
Q 2.898748515054832 1.2039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1085  
   data-arc span      10420 days (28.53 yr)  
   first obs. used      1992-05-07  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:27:46  

Additional Information
 Earth MOID = 1.38255 au 
 Jupiter MOID = 2.5546 au 
 T_jup = 3.389 
[ 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 15.1   n/a MPO449316  

49274 (1998 UB20)          Discovered 1998-Oct-28 by Korlevic, K. at Visnjan
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 UB20 = 2000 DU36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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