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187306 (2005 UG4)
Classification: Main-belt Asteroid          SPK-ID: 2187306
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183260487217273 3.9422e-08  
a 2.665014744207411 1.719e-08 au
q 2.349674079740204 1.0515e-07 au
i 5.671587661987206 4.2457e-06 deg
node 203.5058551635613 4.6033e-05 deg
peri 135.2720901843399 5.0051e-05 deg
M 218.6813724760648 2.2259e-05 deg
tp 2459824.299124956409
(2022-Sep-01.79912496)
0.00010137 TDB
period 1589.087644841952
4.35
1.5375e-05
4.209e-08
d
yr
n .2265450877857684 2.1919e-09 deg/d
Q 2.980355408674619 1.9224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      8005 days (21.92 yr)  
   first obs. used      1999-04-15  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:51  

Additional Information
 Earth MOID = 1.34343 au 
 Jupiter MOID = 2.40487 au 
 T_jup = 3.367 
[ 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 15.96   n/a E2021B55  

187306 (2005 UG4)          Discovered 2005-Oct-25 by Tucker, R. A. at Goodricke-Pigott
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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