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212728 (2007 RK162)
Classification: Main-belt Asteroid          SPK-ID: 2212728
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 .1594315171121578 4.5756e-08  
a 2.342640197638891 1.6605e-08 au
q 1.969149516881398 1.0715e-07 au
i 3.40236708611789 4.9083e-06 deg
node 135.6107051404965 8.0498e-05 deg
peri 198.5814037921603 8.1851e-05 deg
M 115.2878454673517 1.653e-05 deg
tp 2458181.090912916793
(2018-Mar-03.59091292)
5.8168e-05 TDB
period 1309.654723252785
3.59
1.3924e-05
3.812e-08
d
yr
n .2748816108614255 2.9225e-09 deg/d
Q 2.716130878396385 1.9252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      5647 days (15.46 yr)  
   first obs. used      2003-07-23  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59514  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:32:30  

Additional Information
 Earth MOID = .958423 au 
 Jupiter MOID = 2.63446 au 
 T_jup = 3.544 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457123.5 (2015-Apr-11.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1601288938830431 4.5937e-08  
q 1.966886265898713 1.0763e-07 au
tp 2456869.566887765886
(2014-Jul-31.06688777)
5.3349e-05 TDB
node 135.6519360239942 8.0413e-05 deg
peri 198.0790988865152 8.1744e-05 deg
i 3.403709341145505 4.9129e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      5647 days (15.46 yr)  
   first obs. used      2003-07-23  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59514  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:32:30  

Additional Information
 Jupiter MOID = 2.63446 au 
 T_jup = 3.544 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.110166281824787E-15 -4.902622648030752E-15 3.425104040051798E-13 2.137163552148068E-14 2.446847159228212E-14 -3.719902244567604E-16
q -4.902622648030752E-15 1.15834261815689E-14 -6.593912310877662E-13 -5.078822196776889E-14 -1.095561691775045E-14 1.021523974854838E-15
tp 3.425104040051798E-13 -6.593912310877662E-13 2.846106088944481E-9 7.761697772176654E-12 7.987312808757582E-10 -1.174698157095307E-12
node 2.137163552148068E-14 -5.078822196776889E-14 7.761697772176654E-12 6.46631640787031E-9 -6.453168212006159E-9 3.50952161630754E-11
peri 2.446847159228212E-14 -1.095561691775045E-14 7.987312808757582E-10 -6.453168212006159E-9 6.682129720714462E-9 -3.533535269901028E-11
i -3.719902244567604E-16 1.021523974854838E-15 -1.174698157095307E-12 3.50952161630754E-11 -3.533535269901028E-11 2.413688637617847E-11

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 MPO418139  

212728 (2007 RK162)          Discovered 2007-Sep-13 by Mt. Lemmon Survey at Mount Lemmon
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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