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6727 (1991 TF4)
Classification: Main-belt Asteroid          SPK-ID: 2006727
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2132282809418081 3.9919e-08  
a 2.635184343374712 1.1385e-08 au
q 2.073288515872155 1.0393e-07 au
i 3.199514934728251 4.6668e-06 deg
node 16.01932016098963 7.1325e-05 deg
peri 22.73672275601187 7.1964e-05 deg
M 152.947121744227 1.1482e-05 deg
tp 2457936.674796982258
(2017-Jul-02.17479698)
4.7801e-05 TDB
period 1562.481662688806
4.28
1.0125e-05
2.772e-08
d
yr
n .230402703978293 1.4931e-09 deg/d
Q 3.197080170877268 1.3812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      14829 days (40.60 yr)  
   first obs. used      1978-10-04  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50559  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:21:20  

Additional Information
 Earth MOID = 1.08076 au 
 Jupiter MOID = 2.23149 au 
 T_jup = 3.363 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO279585  
diameter diameter 8.851 km 0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.118   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6727 (1991 TF4)          Discovered 1991-Oct-10 by Lawrence, K. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 TF4 = 1978 TU3 = 1982 OK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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