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4051 Hatanaka (1978 VP)
Classification: Main-belt Asteroid          SPK-ID: 2004051
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1092421548554994 3.3491e-08  
a 2.789260638756144 1.0127e-08 au
q 2.484555796124796 9.4523e-08 au
i 2.724148877606913 3.6289e-06 deg
node 285.5449797302172 8.0933e-05 deg
peri 86.94490424223841 8.2892e-05 deg
M 2.334334266864376 1.7194e-05 deg
tp 2458989.467025389596
(2020-May-19.96702539)
8.1264e-05 TDB
period 1701.500473229472
4.66
9.2662e-06
2.537e-08
d
yr
n .2115779605495583 1.1522e-09 deg/d
Q 3.093965481387492 1.1233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2749  
   data-arc span      17195 days (47.08 yr)  
   first obs. used      1973-10-01  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:54:53  

Additional Information
 Earth MOID = 1.48656 au 
 Jupiter MOID = 2.38653 au 
 T_jup = 3.319 
[ 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 12.6   n/a MPO350834  
diameter diameter 7.657 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.292   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4051 Hatanaka (1978 VP)          Discovered 1978-Nov-01 by Tomita, K. at Caussols
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 VP = 1973 TU = 1978 RS16 = 1980 BY2 = 1982 PE = 1989 AY2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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