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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09792567420980641 4.1508e-08  
a 2.639841581601782 1.1623e-08 au
q 2.381333314916346 1.1198e-07 au
i .7000193465247728 3.433e-06 deg
node 96.84349711930527 0.00037021 deg
peri 280.0562134242311 0.00037075 deg
M 298.3678920932621 1.9008e-05 deg
tp 2458868.706775977112
(2020-Jan-20.20677598)
8.2853e-05 TDB
period 1566.625621467743
4.29
1.0347e-05
2.833e-08
d
yr
n .2297932544105353 1.5177e-09 deg/d
Q 2.898349848287219 1.2762e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1052  
   data-arc span      10038 days (27.48 yr)  
   first obs. used      1992-05-07  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54109  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:40:30  

Additional Information
 Earth MOID = 1.382 au 
 Jupiter MOID = 2.55416 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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