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(2017 VR12)
Classification: Apollo [NEO, PHA]          SPK-ID: 3789225
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2694259333245571 5.1691e-09  
a 1.36912255970954 1.2382e-08 au
q 1.00024543622409 4.7711e-09 au
i 9.218593433425973 3.0863e-06 deg
node 347.2644662197491 2.2011e-06 deg
peri 180.7592503669766 9.1441e-06 deg
M 264.1475495891419 9.0153e-06 deg
tp 2459356.298271768335
(2021-May-21.79827177)
1.6508e-05 TDB
period 585.1428690261961
1.60
7.9378e-06
2.173e-08
d
yr
n .6152343625055495 8.346e-09 deg/d
Q 1.737999683194989 1.5718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      419  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      3059 days (8.38 yr)  
   first obs. used      2010-01-23  
   last obs. used      2018-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37172  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:04:39  

Additional Information
 Earth MOID = .00720706 au 
 Jupiter MOID = 3.23279 au 
 T_jup = 4.776 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.6   n/a E2018L39  
rotation period rot_per 1.37752 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2018) http://www.asu.cas.cz/~ppravec/neo.htm]
[Bondarenko, Yu.S.; Marshalov, D.A.; Medvedev, Yu.D.; Kornienko, G.I.; et al. (2019) Astron. Letters 45, 104-107.]
[Devyatkin, A.V.; Gorshanov, D.L.; Naumov, K.N.; Ivanov, A.V. (2020) Plan. Space Sci. 180, A104739.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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