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437178 (2012 VR71)
Classification: Main-belt Asteroid          SPK-ID: 2437178
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197165031930987 6.6397e-08  
a 2.718031146547043 5.5622e-08 au
q 2.182130448748678 2.0248e-07 au
i 10.29682084197412 1.1172e-05 deg
node 56.70452031432507 5.1819e-05 deg
peri 250.8007731788685 6.2817e-05 deg
M 332.0278285963907 3.1838e-05 deg
tp 2459127.675586904849
(2020-Oct-05.17558690)
0.00014436 TDB
period 1636.741410780801
4.48
5.0242e-05
1.376e-07
d
yr
n .2199492220510652 6.7516e-09 deg/d
Q 3.253931844345408 6.6589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      5565 days (15.24 yr)  
   first obs. used      2003-11-15  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70047  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:47:50  

Additional Information
 Earth MOID = 1.19326 au 
 Jupiter MOID = 2.07335 au 
 T_jup = 3.309 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457083.5 (2015-Mar-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1958753257975089 6.669e-08  
q 2.185073379718344 2.0314e-07 au
tp 2457492.568850845375
(2016-Apr-14.06885085)
0.00015802 TDB
node 56.71555800597844 5.18e-05 deg
peri 251.0099533788917 6.292e-05 deg
i 10.29822485601811 1.1175e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      5565 days (15.24 yr)  
   first obs. used      2003-11-15  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70047  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:47:50  

Additional Information
 Jupiter MOID = 2.07335 au 
 T_jup = 3.309 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.447550332357318E-15 -1.326269354736212E-14 6.046575592436782E-12 4.308866234716825E-14 1.371737460385725E-12 -3.173762097948705E-14
q -1.326269354736212E-14 4.126542009701077E-14 -1.928298290249126E-11 -1.433961316806686E-13 -4.466803893291386E-12 1.050294102827952E-13
tp 6.046575592436782E-12 -1.928298290249126E-11 2.497171522202875E-8 1.384759382833536E-10 5.752852977084049E-9 -9.548835763790856E-11
node 4.308866234716825E-14 -1.433961316806686E-13 1.384759382833536E-10 2.683248429236386E-9 -2.607521179231632E-9 -3.67879633034687E-10
peri 1.371737460385725E-12 -4.466803893291386E-12 5.752852977084049E-9 -2.607521179231632E-9 3.958928236349815E-9 3.396385602705926E-10
i -3.173762097948705E-14 1.050294102827952E-13 -9.548835763790856E-11 -3.67879633034687E-10 3.396385602705926E-10 1.248765126684495E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO434607  

437178 (2012 VR71)          Discovered 2003-Nov-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

Alternate Designations
 2012 VR71 = 2012 XD7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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