Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
(2009 UK20)
Classification: Apollo [NEO]          SPK-ID: 3472549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071920891936052 0.00019254  
a 1.053700859829613 5.3299e-05 au
q .8353823772964173 0.00016062 au
i 2.843963152176523 0.0024292 deg
node 215.9696198849412 0.00022822 deg
peri 277.4610370235559 0.0063659 deg
M 208.2862854796239 0.25978 deg
tp 2459166.993303076312
(2020-Nov-13.49330308)
0.29772 TDB
period 395.0703421701684
1.08
0.029976
8.207e-05
d
yr
n .9112301318860767 6.9139e-05 deg/d
Q 1.272019342362809 6.4343e-05 au
  Orbit Determination Parameters
   # obs. used (total)      38  
   data-arc span      15 days  
   first obs. used      2009-10-25  
   last obs. used      2009-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .69974  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:59:24  

Additional Information
 Earth MOID = .00624659 au 
 Jupiter MOID = 3.75184 au 
 T_jup = 5.818 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.3   n/a MPO166376  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-29 18:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin