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JPL Small-Body Database Browser
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66814 (1999 UX12)
Classification: Main-belt Asteroid          SPK-ID: 2066814
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1110197622881616 4.0312e-08  
a 2.582431959573974 1.4103e-08 au
q 2.29573097729672 1.0364e-07 au
i 2.87567254301215 4.4828e-06 deg
node 260.4827504661034 8.3021e-05 deg
peri 176.5867195151178 8.5142e-05 deg
M 293.4996806565489 1.955e-05 deg
tp 2459280.503196115470
(2021-Mar-07.00319612)
8.2854e-05 TDB
period 1515.799496856042
4.15
1.2417e-05
3.4e-08
d
yr
n .237498429539451 1.9455e-09 deg/d
Q 2.869132941851228 1.5669e-08 au
  Orbit Determination Parameters
   # obs. used (total)      766  
   data-arc span      9208 days (25.21 yr)  
   first obs. used      1993-03-21  
   last obs. used      2018-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55031  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:10:19  

Additional Information
 Earth MOID = 1.31108 au 
 Jupiter MOID = 2.34667 au 
 T_jup = 3.413 
[ 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 MPO436248  

66814 (1999 UX12)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 UX12 = 1993 FQ27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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