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212819 (2007 UJ2)
Classification: Main-belt Asteroid          SPK-ID: 2212819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018732082875875 4.1736e-08  
a 2.348893708041567 1.2255e-08 au
q 1.874714999272688 9.6269e-08 au
i 8.969101605646024 4.7522e-06 deg
node 152.4398747575843 2.8862e-05 deg
peri 249.7943993290922 3.0855e-05 deg
M 223.3118133469243 1.1664e-05 deg
tp 2459699.754462021668
(2022-Apr-30.25446202)
4.4448e-05 TDB
period 1314.902265723753
3.60
1.029e-05
2.817e-08
d
yr
n .2737846069508806 2.1426e-09 deg/d
Q 2.823072416810446 1.4729e-08 au
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      8649 days (23.68 yr)  
   first obs. used      1996-09-15  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:40:12  

Additional Information
 Earth MOID = .903203 au 
 Jupiter MOID = 2.64016 au 
 T_jup = 3.515 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457486.5 (2016-Apr-08.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007170256337207 4.1601e-08  
q 1.87883386597469 9.5805e-08 au
tp 2457069.637681100612
(2015-Feb-16.13768110)
3.9068e-05 TDB
node 152.4760207385066 2.8833e-05 deg
peri 249.9003227107309 3.0868e-05 deg
i 8.970348774344529 4.7533e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      8649 days (23.68 yr)  
   first obs. used      1996-09-15  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:40:12  

Additional Information
 Jupiter MOID = 2.64016 au 
 T_jup = 3.515 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.730606359761508E-15 -3.965361669447656E-15 -2.161812054179799E-13 -1.826111521890365E-14 -4.119001836687732E-14 -2.725738307556286E-15
q -3.965361669447656E-15 9.178508799077917E-15 5.16556885742364E-13 4.280969673515421E-14 1.047706736486148E-13 6.627864162176171E-15
tp -2.161812054179799E-13 5.16556885742364E-13 1.526276588560259E-9 -5.73576164375501E-12 4.473598492013918E-10 -1.621964815005347E-12
node -1.826111521890365E-14 4.280969673515421E-14 -5.73576164375501E-12 8.313672806311837E-10 -8.22667367682949E-10 2.325531617977555E-11
peri -4.119001836687732E-14 1.047706736486148E-13 4.473598492013918E-10 -8.22667367682949E-10 9.528120604803878E-10 -2.352015825646502E-11
i -2.725738307556286E-15 6.627864162176171E-15 -1.621964815005347E-12 2.325531617977555E-11 -2.352015825646502E-11 2.259368218746268E-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 17.07   n/a E2021B55  

212819 (2007 UJ2)          Discovered 2007-Oct-18 by Lowe, A. at Mayhill
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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