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186878 (2004 HD66)
Classification: Main-belt Asteroid          SPK-ID: 2186878
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06769816666052482 6.1274e-08  
a 2.582587448926774 1.7891e-08 au
q 2.407751013393949 1.6613e-07 au
i 4.06353823816549 5.259e-06 deg
node 10.80864507845046 5.7357e-05 deg
peri 169.59120506896 6.4694e-05 deg
M 33.94161859695614 2.9692e-05 deg
tp 2459057.574069212262
(2020-Jul-27.07406921)
0.00012472 TDB
period 1515.936399338366
4.15
1.5753e-05
4.313e-08
d
yr
n .2374769813279257 2.4677e-09 deg/d
Q 2.757423884459598 1.9102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      6735 days (18.44 yr)  
   first obs. used      2001-09-19  
   last obs. used      2020-02-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57965  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:04  

Additional Information
 Earth MOID = 1.40994 au 
 Jupiter MOID = 2.19963 au 
 T_jup = 3.417 
[ 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 16.27   n/a E2021B55  

186878 (2004 HD66)          Discovered 2004-Apr-20 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2004 HD66 = 2001 SN329 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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