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4929 Yamatai (1982 XV)
Classification: Main-belt Asteroid          SPK-ID: 2004929
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05824291714928394 4.3648e-08  
a 2.210746412494216 6.4412e-09 au
q 2.081986092353239 9.5843e-08 au
i 2.487018822767452 3.461e-06 deg
node 127.4830585129358 0.00010592 deg
peri 89.56941722567483 0.00011024 deg
M 228.1220345502101 3.1548e-05 deg
tp 2459040.321603878816
(2020-Jul-09.82160388)
0.0001055 TDB
period 1200.623446504848
3.29
5.2472e-06
1.437e-08
d
yr
n .2998442193078948 1.3104e-09 deg/d
Q 2.339506732635194 6.8163e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2075  
   data-arc span      25544 days (69.94 yr)  
   first obs. used      1949-11-23  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48919  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:40:55  

Additional Information
 Earth MOID = 1.07612 au 
 Jupiter MOID = 2.62482 au 
 T_jup = 3.654 
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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 13.8   n/a MPO452235  
diameter diameter 3.952 km 0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.409   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4929 Yamatai (1982 XV)          Discovered 1982-Dec-13 by Kosai and Hurukawa at Kiso
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1982 XV = 1964 FJ = 1984 HK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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