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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043982518361588 4.1355e-08  
a 3.150638844491499 1.6916e-08 au
q 2.506653772510341 1.3373e-07 au
i 3.126870565241027 4.2673e-06 deg
node 64.44307876103716 7.5856e-05 deg
peri 307.8024693682102 7.637e-05 deg
M 228.2619498623335 1.1465e-05 deg
tp 2459747.989492216683
(2022-Jun-17.48949222)
6.8732e-05 TDB
period 2042.661303372867
5.59
1.6451e-05
4.504e-08
d
yr
n .1762406716206763 1.4194e-09 deg/d
Q 3.794623916472657 2.0373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1773  
   data-arc span      11596 days (31.75 yr)  
   first obs. used      1988-09-16  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:17:02  

Additional Information
 Earth MOID = 1.5086 au 
 Jupiter MOID = 1.67096 au 
 T_jup = 3.173 
[ 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 13.1   n/a MPO395112  
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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