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JPL Small-Body Database Browser
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185320 (2006 UH331)
Classification: Main-belt Asteroid          SPK-ID: 2185320
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02251350292317787 7.0488e-08  
a 3.040498483592297 3.7239e-08 au
q 2.972046212094024 2.0345e-07 au
i 8.7267466429936 9.5945e-06 deg
node 177.046121463457 4.0485e-05 deg
peri 248.8063665120035 0.00021832 deg
M 181.4728859618397 0.00021154 deg
tp 2459960.822926731853
(2023-Jan-16.32292673)
0.0011366 TDB
period 1936.491582727147
5.30
3.5576e-05
9.74e-08
d
yr
n .1859032092941063 3.4153e-09 deg/d
Q 3.10895075509057 3.8077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      9485 days (25.97 yr)  
   first obs. used      1993-04-22  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:05:41  

Additional Information
 Earth MOID = 1.99472 au 
 Jupiter MOID = 1.94987 au 
 T_jup = 3.222 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456695.5 (2014-Feb-07.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02435016169225355 6.911e-08  
q 2.965045007202392 1.9907e-07 au
tp 2456099.189305079373
(2012-Jun-20.68930508)
0.0010682 TDB
node 177.0848024801757 4.0483e-05 deg
peri 250.7093176455608 0.00020447 deg
i 8.727970317977519 9.5963e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      9485 days (25.97 yr)  
   first obs. used      1993-04-22  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:05:41  

Additional Information
 Jupiter MOID = 1.94987 au 
 T_jup = 3.222 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.776132045285954E-15 -1.355231934157028E-14 -3.209305865295147E-11 1.764640588129038E-16 -6.05827595496817E-12 -6.291544966812584E-15
q -1.355231934157028E-14 3.9629066414448E-14 9.108148188255802E-11 -1.205268624471734E-15 1.725387667871305E-11 2.264220901232166E-14
tp -3.209305865295147E-11 9.108148188255802E-11 1.14101935396358E-6 -1.802881531866864E-11 2.141112770623516E-7 3.565376478381325E-11
node 1.764640588129038E-16 -1.205268624471734E-15 -1.802881531866864E-11 1.63890859921327E-9 -1.622572267368837E-9 2.165284457321521E-11
peri -6.05827595496817E-12 1.725387667871305E-11 2.141112770623516E-7 -1.622572267368837E-9 4.180830390847849E-8 -1.423956914693556E-11
i -6.291544966812584E-15 2.264220901232166E-14 3.565376478381325E-11 2.165284457321521E-11 -1.423956914693556E-11 9.208903095859867E-11

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 15.6   n/a MPO390953  
diameter diameter 5.426 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

185320 (2006 UH331)          Discovered 2006-Oct-16 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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