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442697 (2012 UT99)
Classification: Main-belt Asteroid          SPK-ID: 2442697
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322243070153115 6.402e-08  
a 2.232865700931519 1.9821e-08 au
q 1.937626580967591 1.4832e-07 au
i 4.644008822675375 7.3598e-06 deg
node 189.6867825206456 7.8302e-05 deg
peri 206.0508356705827 8.6967e-05 deg
M 102.3971286295059 3.8657e-05 deg
tp 2458653.860852079615
(2019-Jun-19.36085208)
0.00012815 TDB
period 1218.687427289636
3.34
1.6227e-05
4.443e-08
d
yr
n .2953997817148576 3.9333e-09 deg/d
Q 2.528104820895448 2.2441e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      9920 days (27.16 yr)  
   first obs. used      1992-11-16  
   last obs. used      2020-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:42:44  

Additional Information
 Earth MOID = .945238 au 
 Jupiter MOID = 2.87702 au 
 T_jup = 3.625 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.1   n/a MPO402748  

442697 (2012 UT99)          Discovered 2007-Mar-10 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 UT99 = 2007 EN30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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