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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06185758916987635 3.7145e-08  
a 2.685492363092325 9.2617e-09 au
q 2.51937427977732 1.0149e-07 au
i 5.977429887494901 3.8225e-06 deg
node 160.5742510134725 2.9146e-05 deg
peri 206.4091929977405 3.766e-05 deg
M 323.5079133127227 2.3119e-05 deg
tp 2459163.441048458306
(2020-Nov-09.94104846)
0.00010317 TDB
period 1607.438290599071
4.40
8.3156e-06
2.277e-08
d
yr
n .2239588307093474 1.1586e-09 deg/d
Q 2.85161044640733 9.8346e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2312  
   data-arc span      16109 days (44.10 yr)  
   first obs. used      1976-09-23  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45328  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:32:17  

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

[ show close-approach data ]
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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