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6891 Triconia (1976 SA)
Classification: Main-belt Asteroid          SPK-ID: 2006891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06185759322352544 3.7664e-08  
a 2.685492369568349 1.1887e-08 au
q 2.519374274966709 1.0201e-07 au
i 5.977429807194913 3.8557e-06 deg
node 160.57418568592 3.9048e-05 deg
peri 206.40927757801 5.0838e-05 deg
M 323.5078907691205 3.4588e-05 deg
tp 2459163.441149707283
(2020-Nov-09.94114971)
0.00015491 TDB
period 1607.43829641354
4.40
1.0673e-05
2.922e-08
d
yr
n .2239588298992374 1.487e-09 deg/d
Q 2.851610464169989 1.2623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1902  
   data-arc span      15920 days (43.59 yr)  
   first obs. used      1976-09-23  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:40:01  

Additional Information
 Earth MOID = 1.51847 au 
 Jupiter MOID = 2.43735 au 
 T_jup = 3.364 
[ 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 13.2   n/a MPO400067  
diameter diameter 8.321 km 0.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.161   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6891 Triconia (1976 SA)          Discovered 1976-Sep-23 by Harvard Observatory at Harvard
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1976 SA = 1981 WC8 = 1983 HH1 = 1989 RK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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