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11888 (1990 UD3)
Classification: Main-belt Asteroid          SPK-ID: 2011888
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2918367335233898 4.4442e-08  
a 2.746695440041449 1.1459e-08 au
q 1.945108814836163 1.2462e-07 au
i 7.8605076782504 4.2049e-06 deg
node 227.8290617102138 3.7022e-05 deg
peri 142.2720926063133 3.7624e-05 deg
M 192.7819777002125 8.7732e-06 deg
tp 2459772.815531220261
(2022-Jul-12.31553122)
4.345e-05 TDB
period 1662.701109697595
4.55
1.0405e-05
2.849e-08
d
yr
n .2165151619255702 1.3549e-09 deg/d
Q 3.548282065246736 1.4803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1149  
   data-arc span      13947 days (38.18 yr)  
   first obs. used      1981-11-28  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47938  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:11:17  

Additional Information
 Earth MOID = .9524 au 
 Jupiter MOID = 1.96653 au 
 T_jup = 3.271 
[ 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 14.2   n/a MPO381361  
diameter diameter 7.865 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.079   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11888 (1990 UD3)          Discovered 1990-Oct-19 by Sugie, A. at Dynic
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 UD3 = 1981 WB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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