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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1095325425114708 3.7635e-08  
a 2.791269160768553 1.1923e-08 au
q 2.485534352755714 1.0827e-07 au
i 2.72335554128203 4.0528e-06 deg
node 285.5435858393088 8.4544e-05 deg
peri 86.59283819883302 8.6552e-05 deg
M 278.0785150265649 1.8733e-05 deg
tp 2458988.111200606499
(2020-May-18.61120061)
8.9209e-05 TDB
period 1703.338657295931
4.66
1.0913e-05
2.988e-08
d
yr
n .2113496329446923 1.3541e-09 deg/d
Q 3.097003968781392 1.3229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2484  
   data-arc span      16831 days (46.08 yr)  
   first obs. used      1973-10-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46916  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:32:07  

Additional Information
 Earth MOID = 1.4866 au 
 Jupiter MOID = 2.37994 au 
 T_jup = 3.319 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456394.5 (2013-Apr-12.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1127217428772709 3.7941e-08  
q 2.474076974094134 1.0959e-07 au
tp 2455581.996207100558
(2011-Jan-20.49620710)
8.2496e-05 TDB
node 285.7936068159667 8.4848e-05 deg
peri 85.9900265068043 8.6679e-05 deg
i 2.718679363223506 4.0493e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2484  
   data-arc span      16831 days (46.08 yr)  
   first obs. used      1973-10-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46916  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:32:07  

Additional Information
 Jupiter MOID = 2.37994 au 
 T_jup = 3.319 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.439504973161975E-15 -4.140797958649224E-15 -3.699089100709421E-13 -3.895502585593062E-15 -8.872792012628622E-14 -5.885693087635492E-16
q -4.140797958649224E-15 1.201031832131766E-14 1.047263903984235E-12 1.251266298586717E-14 2.61106998180078E-13 1.850997054556922E-15
tp -3.699089100709421E-13 1.047263903984235E-12 6.805580422599328E-9 1.028230265128913E-11 1.48031132706383E-9 -2.755318123483503E-13
node -3.895502585593062E-15 1.251266298586717E-14 1.028230265128913E-11 7.199130993155722E-9 -7.18802415975029E-9 4.281097004745998E-11
peri -8.872792012628622E-14 2.61106998180078E-13 1.48031132706383E-9 -7.18802415975029E-9 7.513210148846138E-9 -4.279142709492882E-11
i -5.885693087635492E-16 1.850997054556922E-15 -2.755318123483503E-13 4.281097004745998E-11 -4.279142709492882E-11 1.639682567921857E-11

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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