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344111 (1999 UB28)
Classification: Main-belt Asteroid          SPK-ID: 2344111
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1979028889949974 6.7688e-08  
a 2.702842788022346 2.2641e-08 au
q 2.16794239177343 1.7882e-07 au
i 10.14054099319113 9.8637e-06 deg
node 196.161206021459 2.9501e-05 deg
peri 147.4865161944312 3.6789e-05 deg
M 244.2316491961844 2.2953e-05 deg
tp 2459522.435637048047
(2021-Nov-03.93563705)
0.00010705 TDB
period 1623.041427408018
4.44
2.0393e-05
5.583e-08
d
yr
n .2218057986202587 2.787e-09 deg/d
Q 3.237743184271262 2.7121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      7499 days (20.53 yr)  
   first obs. used      1999-10-15  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66087  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 22:24:20  

Additional Information
 Earth MOID = 1.16888 au 
 Jupiter MOID = 2.2421 au 
 T_jup = 3.316 
[ 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 16.9   n/a MPO427766  

344111 (1999 UB28)          Discovered 1999-Oct-30 by Spacewatch at Kitt Peak
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 1999 UB28 = 2008 SC160 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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