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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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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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04808786076226123 2.2526e-08  
a 3.092560509312108 1.5416e-08 au
q 2.943845890141439 7.5795e-08 au
i 12.28163405463023 9.1609e-07 deg
node 312.3407938061405 9.7327e-06 deg
peri 45.52469133139451 2.4651e-05 deg
M 225.1887106384353 2.022e-05 deg
tp 2459944.374201760316
(2022-Dec-30.87420176)
0.00011293 TDB
period 1986.44129806879
5.44
1.4853e-05
4.067e-08
d
yr
n .181228612368254 1.3551e-09 deg/d
Q 3.241275128482776 1.6157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2705  
   data-arc span      24105 days (66.00 yr)  
   first obs. used      1955-03-24  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42734  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:57:46  

Additional Information
 Earth MOID = 1.94753 au 
 Jupiter MOID = 2.07831 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 10.75   n/a E2021B10  
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. 2020-October); 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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