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JPL Small-Body Database Browser
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212844 (2007 UU121)
Classification: Main-belt Asteroid          SPK-ID: 2212844
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2215282513998553 8.1833e-08  
a 2.562886766224802 2.2315e-08 au
q 1.995134942367192 2.1632e-07 au
i 4.987563152321653 9.2721e-06 deg
node 18.68613736338275 6.417e-05 deg
peri 123.91700624 6.649e-05 deg
M 197.8680878759668 1.3529e-05 deg
tp 2459275.429729634270
(2021-Mar-01.92972963)
5.7062e-05 TDB
period 1498.623555876268
4.10
1.9572e-05
5.359e-08
d
yr
n .2402204333359104 3.1373e-09 deg/d
Q 3.130638590082412 2.7258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      5348 days (14.64 yr)  
   first obs. used      2003-10-21  
   last obs. used      2018-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56161  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:54:53  

Additional Information
 Earth MOID = 1.01307 au 
 Jupiter MOID = 1.90035 au 
 T_jup = 3.394 
[ 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 16.7   n/a MPO418139  

212844 (2007 UU121)          Discovered 2007-Oct-30 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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