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6850 (1981 QT3)
Classification: Main-belt Asteroid          SPK-ID: 2006850
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0926117928974549 3.4259e-08  
a 3.148071666441167 1.5962e-08 au
q 2.856523105242372 1.0864e-07 au
i 5.906267529573938 4.6273e-06 deg
node 359.6983574700514 3.3117e-05 deg
peri 247.7181226017368 4.1212e-05 deg
M 335.9696048216182 2.4243e-05 deg
tp 2458736.683268953062
(2019-Sep-10.18326895)
0.00013724 TDB
period 2040.16523486917
5.59
1.5517e-05
4.248e-08
d
yr
n .1764562957191483 1.342e-09 deg/d
Q 3.439620227639962 1.744e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2205  
   data-arc span      25026 days (68.52 yr)  
   first obs. used      1951-02-04  
   last obs. used      2019-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47658  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:55:51  

Additional Information
 Earth MOID = 1.84991 au 
 Jupiter MOID = 1.61894 au 
 T_jup = 3.194 
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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 12.3   n/a MPO400067  
diameter diameter 22.140 km 2.819 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.069   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

6850 (1981 QT3)          Discovered 1981-Aug-28 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 QT3 = 1968 FB = 1987 SS12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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