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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02015402762167326 5.1284e-08  
a 3.039917436745472 1.6675e-08 au
q 2.978650856757698 1.5723e-07 au
i 6.592806355561378 5.4198e-06 deg
node 214.7217737750954 3.5749e-05 deg
peri 119.5532125938639 0.00012636 deg
M 71.13638233955997 0.00011839 deg
tp 2459013.956890208634
(2020-Jun-13.45689021)
0.0006379 TDB
period 1935.936506688312
5.30
1.5929e-05
4.361e-08
d
yr
n .1859565118774633 1.5301e-09 deg/d
Q 3.101184016733246 1.7011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      12889 days (35.29 yr)  
   first obs. used      1986-04-02  
   last obs. used      2021-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4591  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:47:39  

Additional Information
 Earth MOID = 1.97562 au 
 Jupiter MOID = 1.96133 au 
 T_jup = 3.230 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457260.5 (2015-Aug-26.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02409179610136096 5.2159e-08  
q 2.968405812543643 1.6148e-07 au
tp 2457092.273148675290
(2015-Mar-10.77314868)
0.00052689 TDB
node 214.851831825283 3.5645e-05 deg
peri 122.538264565644 0.00010546 deg
i 6.600508786965075 5.4297e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      12889 days (35.29 yr)  
   first obs. used      1986-04-02  
   last obs. used      2021-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4591  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:47:39  

Additional Information
 Jupiter MOID = 1.96133 au 
 T_jup = 3.230 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.720549621869452E-15 -8.378990216480453E-15 1.092166466590131E-11 -3.390911992606215E-15 2.002174833263488E-12 -2.709702755483792E-15
q -8.378990216480453E-15 2.607676305809412E-14 -3.718443823554142E-11 1.04535106031114E-14 -6.83577332961541E-12 8.678483445945065E-15
tp 1.092166466590131E-11 -3.718443823554142E-11 2.776089954562587E-7 -1.710695203608823E-12 5.231849953767369E-8 -1.662815031497245E-11
node -3.390911992606215E-15 1.04535106031114E-14 -1.710695203608823E-12 1.270598890139649E-9 -1.26186355409941E-9 -9.957952391417823E-11
peri 2.002174833263488E-12 -6.83577332961541E-12 5.231849953767369E-8 -1.26186355409941E-9 1.11223816187791E-8 9.583004087546239E-11
i -2.709702755483792E-15 8.678483445945065E-15 -1.662815031497245E-11 -9.957952391417823E-11 9.583004087546239E-11 2.948128430701499E-11

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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