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6965 Niyodogawa (1990 VS2)
Classification: Main-belt Asteroid          SPK-ID: 2006965
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01179179013332863 3.3115e-08  
a 2.481672530058691 9.9727e-09 au
q 2.452409168404592 8.3679e-08 au
i 6.142082275954594 3.8119e-06 deg
node 130.4931585907286 3.4746e-05 deg
peri 105.8124951602336 0.00017594 deg
M 23.19989713946161 0.00017394 deg
tp 2458908.476510893961
(2020-Feb-28.97651089)
0.00068983 TDB
period 1427.95702407768
3.91
8.6074e-06
2.357e-08
d
yr
n .2521084275855743 1.5197e-09 deg/d
Q 2.51093589171279 1.009e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2263  
   data-arc span      23919 days (65.49 yr)  
   first obs. used      1954-08-04  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:17:04  

Additional Information
 Earth MOID = 1.44516 au 
 Jupiter MOID = 2.46509 au 
 T_jup = 3.470 
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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 13.6   n/a MPO473862  
rotation period rot_per 6.36 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

6965 Niyodogawa           Discovered 1990 Nov. 11 by T. Seki at Geisei.
Named for a river, 100 km in length, that has its source at the center of Shikoku Island.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980610/MPCPages.arcLast Updated: 2009-11-17

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