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27661 (1978 UK6)
Classification: Main-belt Asteroid          SPK-ID: 2027661
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1355845742323869 3.7578e-08  
a 2.470279698493272 9.4712e-09 au
q 2.135347877338153 9.4571e-08 au
i 5.292297744130088 4.3864e-06 deg
node 207.0156323269322 3.9853e-05 deg
peri 48.23055679186702 4.2474e-05 deg
M 12.85851808854199 1.6204e-05 deg
tp 2458949.846898776720
(2020-Apr-10.34689878)
6.3714e-05 TDB
period 1418.135147053194
3.88
8.1558e-06
2.233e-08
d
yr
n .2538545079769441 1.4599e-09 deg/d
Q 2.805211519648392 1.0755e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1974  
   data-arc span      15737 days (43.09 yr)  
   first obs. used      1977-05-15  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51541  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:35:23  

Additional Information
 Earth MOID = 1.12521 au 
 Jupiter MOID = 2.23653 au 
 T_jup = 3.466 
[ 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 14.1   n/a MPO384983  

27661 (1978 UK6)          Discovered 1978-Oct-27 by Olmstead, C. M. at Palomar
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 UK6 = 1977 JT = 2000 AV237 = 2000 EQ91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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