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180804 (2005 ET117)
Classification: Main-belt Asteroid          SPK-ID: 2180804
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06163492047605588 4.6691e-08  
a 2.201455478354371 9.2204e-09 au
q 2.065768945014422 1.0358e-07 au
i 6.155245582316001 5.2251e-06 deg
node 191.1797208496047 3.3474e-05 deg
peri 186.7861908651172 4.5925e-05 deg
M 100.3497744605574 3.0593e-05 deg
tp 2458867.934505269564
(2020-Jan-19.43450527)
0.00010136 TDB
period 1193.062752223869
3.27
7.4954e-06
2.052e-08
d
yr
n .3017443963688918 1.8957e-09 deg/d
Q 2.33714201169432 9.7887e-09 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      6375 days (17.45 yr)  
   first obs. used      2003-09-22  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:02  

Additional Information
 Earth MOID = 1.06547 au 
 Jupiter MOID = 2.88803 au 
 T_jup = 3.655 
[ 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 17.2   n/a MPO436893  

180804 (2005 ET117)          Discovered 2005-Mar-04 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2005 ET117 = 2003 UA200 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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