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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06185759386429554 3.7387e-08  
a 2.685492369125837 1.1106e-08 au
q 2.519374272830786 1.0165e-07 au
i 5.977430194557559 3.8409e-06 deg
node 160.5742023039273 3.717e-05 deg
peri 206.4092597756177 4.7765e-05 deg
M 323.5078922358446 3.1313e-05 deg
tp 2459163.441143117930
(2020-Nov-09.94114312)
0.00014015 TDB
period 1607.438296016233
4.40
9.9713e-06
2.73e-08
d
yr
n .2239588299545929 1.3893e-09 deg/d
Q 2.851610465420888 1.1793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1994  
   data-arc span      16020 days (43.86 yr)  
   first obs. used      1976-09-23  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47877  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:44:45  

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2181-May-25 22:50 00:01 Juno 0.0499051926016654 0.0498862662257949 0.0499241228044437 4.7848488594142 4.78484880846563 2517799.451438403 1.34427518771656 1168.39613660387 40.2657815607122 36.1848030677255 109509.114863082 T 31 CATAB v2.0f-lin.ifort 2020-Aug-24 23:44:57 2020-Aug-24 23:45

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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