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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06159940749732891 1.9641e-08  
a 2.684632400940725 8.7518e-09 au
q 2.519260635694645 5.2972e-08 au
i 5.978287894333852 7.3471e-07 deg
node 160.5747835892529 4.7846e-06 deg
peri 206.5894569705 2.0559e-05 deg
M 8.142385729531137 1.8351e-05 deg
tp 2459164.160843727226
(2020-Nov-10.66084373)
8.1921e-05 TDB
period 1606.666239202083
4.40
7.8565e-06
2.151e-08
d
yr
n .2240664496558952 1.0957e-09 deg/d
Q 2.850004166186805 9.2909e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2548  
   data-arc span      16213 days (44.39 yr)  
   first obs. used      1976-09-23  
   last obs. used      2021-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44794  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 19:19:29  

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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