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172345 (2002 VR105)
Classification: Main-belt Asteroid          SPK-ID: 2172345
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2183765346555084 5.4015e-08  
a 2.75534405041006 2.9316e-08 au
q 2.153641564897838 1.5634e-07 au
i 11.94432418165199 6.8913e-06 deg
node 262.8691926475835 2.7299e-05 deg
peri 96.91764460128982 3.1287e-05 deg
M 340.9674548200184 1.9104e-05 deg
tp 2459088.819489209315
(2020-Aug-27.31948921)
8.9599e-05 TDB
period 1670.560390882206
4.57
2.6661e-05
7.299e-08
d
yr
n .2154965495200612 3.4392e-09 deg/d
Q 3.357046535922281 3.5718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      288  
   data-arc span      5928 days (16.23 yr)  
   first obs. used      2002-11-12  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52155  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:14:43  

Additional Information
 Earth MOID = 1.19003 au 
 Jupiter MOID = 2.31264 au 
 T_jup = 3.278 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456593.5 (2013-Oct-28.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2211901949487701 5.4024e-08  
q 2.143752310537844 1.564e-07 au
tp 2457420.361134009185
(2016-Feb-01.86113401)
7.3651e-05 TDB
node 262.9117340420994 2.7329e-05 deg
peri 97.32045949208484 3.122e-05 deg
i 11.94416860949189 6.8924e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      288  
   data-arc span      5928 days (16.23 yr)  
   first obs. used      2002-11-12  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52155  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:14:43  

Additional Information
 Jupiter MOID = 2.31264 au 
 T_jup = 3.278 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.918624830152521E-15 -8.368862811334172E-15 -5.034243878423236E-13 5.826445707890221E-15 1.385045960880569E-14 -3.19301980844163E-16
q -8.368862811334172E-15 2.446118435635815E-14 2.125049234727628E-12 -1.364735564574295E-14 3.838742388333543E-14 1.944793940803947E-15
tp -5.034243878423236E-13 2.125049234727628E-12 5.424530354494483E-9 -8.936515774453593E-13 1.104651998619125E-9 3.181092088190424E-12
node 5.826445707890221E-15 -1.364735564574295E-14 -8.936515774453593E-13 7.46851790656745E-10 -7.308917793977106E-10 -7.756464100943831E-12
peri 1.385045960880569E-14 3.838742388333543E-14 1.104651998619125E-9 -7.308917793977106E-10 9.746673633161997E-10 8.083631011213372E-12
i -3.19301980844163E-16 1.944793940803947E-15 3.181092088190424E-12 -7.756464100943831E-12 8.083631011213372E-12 4.750575834306562E-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 15.2   n/a MPO475461  

172345 (2002 VR105)          Discovered 2002-Nov-12 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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