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8416 Okada (1996 VB8)
Classification: Main-belt Asteroid          SPK-ID: 2008416
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1956825901707467 2.9757e-08  
a 2.152674679013729 5.6338e-09 au
q 1.731433722029342 6.2538e-08 au
i 3.316360956011811 3.7122e-06 deg
node 169.99416997564 4.6619e-05 deg
peri 130.5413478832485 4.8263e-05 deg
M 305.7563969359256 1.5811e-05 deg
tp 2459374.324928345896
5.1107e-05 TDB
period 1153.628643189586
n .3120588259707747 1.225e-09 deg/d
Q 2.573915635998116 6.7362e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2552  
   data-arc span      14524 days (39.76 yr)  
   first obs. used      1980-09-06  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:48:51  

Additional Information
 Earth MOID = .716296 au 
 Jupiter MOID = 2.6481 au 
 T_jup = 3.677 
[ show covariance matrix ]

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 13.93   n/a E2021B10  
diameter diameter 4.198 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.252   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

8416 Okada           Discovered 1996 Nov. 3 by S. Ueda and H. Kaneda at Kushiro.
Yoshiyuki Okada (b. 1947), a member of Shirakawa Observatory in Japan and Chiro Observatory in Australia, is a talented amateur who played an important role in developing large portable telescopes, including the 0.84-m Chiro Telescope. These telescopes went on nationwide tours to show the beauty of the starry sky.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2171-Jul-18 00:46 00:02 Eunom 0.0223123921627015 0.0223014318436448 0.0223233603594888 5.78939608394885 5.78939597527764 2514199.532223898 2.11006338881007 858.188001221792 29.102504814937 50.4893670432556 88474.075852729 T 39 CATAB v2.0f-lin.ifort 2020-Jun-23 16:49:04 2020-Jun-23 16:49

Alternate Designations
 1996 VB8 = 1980 RP8 = 1980 TG10 = 1986 LA1 = 1988 AO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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