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11587 (1994 UH2)
Classification: Main-belt Asteroid          SPK-ID: 2011587
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2044009934386265 4.1086e-08  
a 3.151392460897723 1.6761e-08 au
q 2.507244711175231 1.3308e-07 au
i 3.126561562490565 4.2117e-06 deg
node 64.44325101392694 7.4582e-05 deg
peri 307.7223717960278 7.5095e-05 deg
M 263.6048815154795 1.1604e-05 deg
tp 2459747.647860261161
(2022-Jun-17.14786026)
6.8604e-05 TDB
period 2043.394238118485
5.59
1.6302e-05
4.463e-08
d
yr
n .1761774567454396 1.4055e-09 deg/d
Q 3.795540210620216 2.0187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1827  
   data-arc span      11632 days (31.85 yr)  
   first obs. used      1988-09-16  
   last obs. used      2020-07-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50174  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:51:48  

Additional Information
 Earth MOID = 1.50772 au 
 Jupiter MOID = 1.67116 au 
 T_jup = 3.172 
[ 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 13.16   n/a E2021B10  
diameter diameter 14.048 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

11587 (1994 UH2)          Discovered 1994-Oct-31 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 UH2 = 1988 SR3 = 1997 JS18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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