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JPL Small-Body Database Browser
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393950 (2005 UB204)
Classification: Main-belt Asteroid          SPK-ID: 2393950
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08696968635102945 7.1458e-08  
a 3.142380159520289 4.9137e-08 au
q 2.869088342651112 2.3e-07 au
i 8.187435323923127 9.7762e-06 deg
node 219.3165906118315 4.5397e-05 deg
peri 127.3143007388021 6.7011e-05 deg
M 276.4663642609894 4.9338e-05 deg
tp 2459472.612388087743
(2021-Sep-15.11238809)
0.0002817 TDB
period 2034.635009095085
5.57
4.7723e-05
1.307e-07
d
yr
n .1769359115471585 4.1501e-09 deg/d
Q 3.415671976389466 5.341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      4933 days (13.51 yr)  
   first obs. used      2005-10-01  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50701  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:30:13  

Additional Information
 Earth MOID = 1.87248 au 
 Jupiter MOID = 1.98607 au 
 T_jup = 3.188 
[ 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 16.2   n/a MPO434465  
rotation period rot_per 6.98 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]

393950 (2005 UB204)          Discovered 2005-Oct-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-05-15

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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