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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06159937718533755 3.711e-08  
a 2.684632401935705 9.0411e-09 au
q 2.519260718004889 1.0134e-07 au
i 5.978292765452874 3.7793e-06 deg
node 160.5748072138796 2.8257e-05 deg
peri 206.5894298591483 3.6715e-05 deg
M 8.142389143494784 2.2476e-05 deg
tp 2459164.160828470635
(2020-Nov-10.66082847)
0.00010033 TDB
period 1606.666240095278
4.40
8.1162e-06
2.222e-08
d
yr
n .2240664495313298 1.1319e-09 deg/d
Q 2.850004085866522 9.598e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2484  
   data-arc span      16185 days (44.31 yr)  
   first obs. used      1976-09-23  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44819  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:33:58  

Additional Information
 Earth MOID = 1.51679 au 
 Jupiter MOID = 2.43643 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 13.27   n/a E2021B10  
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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