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JPL Small-Body Database Browser
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48806 (1997 UB21)
Classification: Main-belt Asteroid          SPK-ID: 2048806
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1538815689275732 3.5987e-08  
a 3.128694321936192 2.3831e-08 au
q 2.647245930981861 1.2241e-07 au
i 14.23554299141904 4.2441e-06 deg
node 155.6294471746464 1.6988e-05 deg
peri 293.64743373 2.3139e-05 deg
M 279.0675277451141 1.5276e-05 deg
tp 2459054.926274739760
(2020-Jul-24.42627474)
8.7535e-05 TDB
period 2021.357489131166
5.53
2.3095e-05
6.323e-08
d
yr
n .1780981355033531 2.0348e-09 deg/d
Q 3.610142712890523 2.7498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1997-10-30  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5271  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:14:51  

Additional Information
 Earth MOID = 1.70179 au 
 Jupiter MOID = 1.69196 au 
 T_jup = 3.148 
[ 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 14.4   n/a MPO417154  

48806 (1997 UB21)          Discovered 1997-Oct-30 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 UB21 = 1999 CA79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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