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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01234878411714128 1.7112e-08  
a 2.482429096866193 9.1082e-09 au
q 2.451774115862883 4.3449e-08 au
i 6.143681842751612 5.1553e-07 deg
node 130.4864218387453 2.0474e-06 deg
peri 105.5905668434587 7.0326e-05 deg
M 73.7873651612135 6.8714e-05 deg
tp 2458907.685075692559
(2020-Feb-28.18507569)
0.00027299 TDB
period 1428.610067866872
3.91
7.8625e-06
2.153e-08
d
yr
n .2519931842126339 1.3869e-09 deg/d
Q 2.513084077869503 9.2206e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2423  
   data-arc span      24175 days (66.19 yr)  
   first obs. used      1954-08-04  
   last obs. used      2020-10-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46051  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:16:44  

Additional Information
 Earth MOID = 1.44303 au 
 Jupiter MOID = 2.46219 au 
 T_jup = 3.469 
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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 13.59   n/a E2021B10  
rotation period rot_per 6.36 h n/a LCDB (Rev. 2020-October); 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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