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3431 Nakano (1984 QC)
Classification: Main-belt Asteroid          SPK-ID: 2003431
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04786791073496822 5.5177e-08  
a 3.093176223953206 1.604e-08 au
q 2.945112340577488 1.7188e-07 au
i 12.28154087463897 4.6886e-06 deg
node 312.3400702059701 2.1804e-05 deg
peri 45.49407453985972 4.654e-05 deg
M 188.9715732160905 4.2058e-05 deg
tp 2459944.498320992452
(2022-Dec-30.99832099)
0.00023433 TDB
period 1987.034564649665
5.44
1.5456e-05
4.232e-08
d
yr
n .1811745031538854 1.4092e-09 deg/d
Q 3.241240107328924 1.6808e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2588  
   data-arc span      23826 days (65.23 yr)  
   first obs. used      1955-03-24  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43321  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:57:32  

Additional Information
 Earth MOID = 1.95057 au 
 Jupiter MOID = 2.07773 au 
 T_jup = 3.187 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.6   n/a MPO384782  
diameter diameter 44.339 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.0563 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2003) Minor Planet Bull. 30, 61-64.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 21-23.]
[Brincat, S. (2017) Posting on CALL web site: http://www.minorplanet.info/call.html.]
[Brincat, S.M.; Baldies, C. (2018) Minor Planet Bull. 45, 244-245.]
geometric albedo albedo 0.050   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3431 Nakano (1984 QC)          Discovered 1984-Aug-24 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 QC = 1951 PL = 1962 PD = 1962 QM = 1970 AO = 1973 SD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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