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20669 (1999 UO13)
Classification: Main-belt Asteroid          SPK-ID: 2020669
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02025221634549604 5.1251e-08  
a 3.039875634022589 1.6787e-08 au
q 2.978311415018961 1.5719e-07 au
i 6.592880598423211 5.4228e-06 deg
node 214.7220504448426 3.5785e-05 deg
peri 119.2896611836237 0.00012616 deg
M 34.93664508730473 0.00011829 deg
tp 2459012.628523479789
(2020-Jun-12.12852348)
0.00063672 TDB
period 1935.896574449636
5.30
1.6036e-05
4.39e-08
d
yr
n .1859603476504657 1.5404e-09 deg/d
Q 3.101439853026216 1.7127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1696  
   data-arc span      12729 days (34.85 yr)  
   first obs. used      1986-04-02  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:26:17  

Additional Information
 Earth MOID = 1.97411 au 
 Jupiter MOID = 1.96243 au 
 T_jup = 3.230 
[ 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 13.61   n/a E2021B10  
diameter diameter 7.271 km 1.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.146   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

20669 (1999 UO13)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 UO13 = 1978 UV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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