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JPL Small-Body Database Browser
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20667 (1999 UM11)
Classification: Main-belt Asteroid          SPK-ID: 2020667
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1273672149838359 3.1466e-08  
a 3.183551584202538 1.7046e-08 au
q 2.778071485165282 9.9739e-08 au
i 1.688290675281158 4.1418e-06 deg
node 61.30089172834774 0.00015063 deg
peri 25.18403546360719 0.00015212 deg
M 120.1114239628297 1.9953e-05 deg
tp 2457908.273726835824
(2017-Jun-03.77372684)
0.00011472 TDB
period 2074.752343425906
5.68
1.6664e-05
4.562e-08
d
yr
n .1735146853265171 1.3936e-09 deg/d
Q 3.589031683239794 1.9218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1515  
   data-arc span      10661 days (29.19 yr)  
   first obs. used      1990-03-01  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50937  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:54:21  

Additional Information
 Earth MOID = 1.79446 au 
 Jupiter MOID = 1.6169 au 
 T_jup = 3.185 
[ 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 13.7   n/a MPO350966  
diameter diameter 8.288 km 0.328 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20667 (1999 UM11)          Discovered 1999-Oct-27 by Korlevic, K. at Visnjan
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 UM11 = 1990 EY5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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