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6497 Yamasaki (1992 UR3)
Classification: Main-belt Asteroid          SPK-ID: 2006497
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2151768753416577 1.2688e-08  
a 2.314138203295401 4.576e-09 au
q 1.816189175601538 3.0186e-08 au
i 4.710809638941632 1.1346e-06 deg
node 234.0658305752146 9.5709e-06 deg
peri 121.642158437598 1.0049e-05 deg
M 80.02891118651321 3.8993e-06 deg
tp 2459110.657519227547
(2020-Sep-18.15751923)
1.3724e-05 TDB
period 1285.826478861616
3.52
3.8139e-06
1.044e-08
d
yr
n .279975568957578 8.3044e-10 deg/d
Q 2.812087230989263 5.5607e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2522  
   data-arc span      24690 days (67.60 yr)  
   first obs. used      1953-09-06  
   last obs. used      2021-04-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:10:37  

Additional Information
 Earth MOID = .81662 au 
 Jupiter MOID = 2.65872 au 
 T_jup = 3.547 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457290.5 (2015-Sep-25.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155317791561823 1.2661e-08  
q 1.815161194966521 3.0144e-08 au
tp 2457825.931018133722
(2017-Mar-13.43101813)
1.3445e-05 TDB
node 234.0974717620306 9.5662e-06 deg
peri 121.7995696256493 1.0047e-05 deg
i 4.712095725373236 1.1351e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2522  
   data-arc span      24690 days (67.60 yr)  
   first obs. used      1953-09-06  
   last obs. used      2021-04-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:10:37  

Additional Information
 Jupiter MOID = 2.65872 au 
 T_jup = 3.547 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.602957487500668E-16 -3.789800900284841E-16 -3.385528508531922E-14 2.676757211424131E-14 -2.91613311294228E-14 2.180640306801945E-16
q -3.789800900284841E-16 9.086308513320731E-16 7.474840496966972E-14 -6.271605024751103E-14 6.593765812961621E-14 -5.105510810660962E-16
tp -3.385528508531922E-14 7.474840496966972E-14 1.807801529564229E-10 1.035015466854908E-11 3.123095539522854E-11 -3.917712179543401E-13
node 2.676757211424131E-14 -6.271605024751103E-14 1.035015466854908E-11 9.151305437240463E-11 -9.090698645511188E-11 -2.765411086090978E-12
peri -2.91613311294228E-14 6.593765812961621E-14 3.123095539522854E-11 -9.090698645511188E-11 1.009379848220846E-10 2.903819125073932E-12
i 2.180640306801945E-16 -5.105510810660962E-16 -3.917712179543401E-13 -2.765411086090978E-12 2.903819125073932E-12 1.288481888417444E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.09   n/a E2021B10  
diameter diameter 3.448 km 0.570 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 9.879 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pray, D.P.; Kusnirak, P.; Galad, A.; Vilagi, J.; et al. (2007) Minor Planet Bull. 34, 44-46.]
geometric albedo albedo 0.390   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

6497 Yamasaki (1992 UR3)          Discovered 1992-Oct-27 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1992 UR3 = 1978 WZ18 = 1980 FT5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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