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2708 Burns (1981 WT)
Classification: Main-belt Asteroid          SPK-ID: 2002708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1775281299483488 3.8924e-08  
a 3.08108094779281 1.5319e-08 au
q 2.534102408911667 1.2434e-07 au
i 2.78271689069258 4.0123e-06 deg
node 111.647857896119 0.00010126 deg
peri 331.1520648085836 0.00010207 deg
M 300.7534251150037 1.2552e-05 deg
tp 2458925.597655228546
(2020-Mar-17.09765523)
6.9142e-05 TDB
period 1975.391085635818
5.41
1.4732e-05
4.033e-08
d
yr
n .1822423937304177 1.3592e-09 deg/d
Q 3.628059486673953 1.8039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2186  
   data-arc span      25492 days (69.79 yr)  
   first obs. used      1950-02-11  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47423  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:38:52  

Additional Information
 Earth MOID = 1.55049 au 
 Jupiter MOID = 1.61312 au 
 T_jup = 3.202 
[ 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 12.1   n/a MPO337271  
diameter diameter 20.085 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.315 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.084   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2708 Burns (1981 WT)          Discovered 1981-Nov-24 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 WT = 1951 GG = 1961 DN = 1965 YB = 1978 EL3 = A912 AE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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