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 ]  
(2020 DK2)
Classification: Apollo [NEO]          SPK-ID: 3991736
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4016487099816949 0.00045658  
a 1.284393323052938 0.00073207 au
q .7685184017396229 0.00015104 au
i 11.56102317075826 0.011244 deg
node 332.2497731712338 0.00058852 deg
peri 257.9914803206585 0.0078952 deg
M 30.87717208207016 0.012149 deg
tp 2458954.898355658657
(2020-Apr-15.39835566)
0.021106 TDB
period 531.6740768632826
1.46
0.45456
0.001245
d
yr
n .6771065501705328 0.0005789 deg/d
Q 1.800268244366253 0.0010261 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      1 day  
   first obs. used      2020-02-20  
   last obs. used      2020-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .52399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-11 07:47:34  

Additional Information
 Earth MOID = .00235922 au 
 Jupiter MOID = 3.25332 au 
 T_jup = 4.943 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458900.5 (2020-Feb-21.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4029000702095819 0.00045468  
q .7694167546944914 0.00015317 au
tp 2458954.724018891046
(2020-Apr-15.22401889)
0.020498 TDB
node 332.2571928135109 0.0005655 deg
peri 257.7021448250745 0.0072052 deg
i 11.57411724303811 0.011205 deg
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      1 day  
   first obs. used      2020-02-20  
   last obs. used      2020-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .52399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-11 07:47:34  

Additional Information
 Jupiter MOID = 3.25332 au 
 T_jup = 4.943 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.067382649830727E-7 -6.876474686835838E-8 -9.263896307230319E-6 2.570983897035516E-7 -2.366149852708413E-6 5.092691666917201E-6
q -6.876474686835838E-8 2.34625316184199E-8 3.026673903440198E-6 -8.543913236026407E-8 6.659580512768441E-7 -1.701042196854067E-6
tp -9.263896307230319E-6 3.026673903440198E-6 .000420175504448701 -1.152752448051258E-5 .0001172390887561534 -.0002275424422623505
node 2.570983897035516E-7 -8.543913236026407E-8 -1.152752448051258E-5 3.197909210173418E-7 -2.95813530085965E-6 6.332378258596467E-6
peri -2.366149852708413E-6 6.659580512768441E-7 .0001172390887561534 -2.95813530085965E-6 5.19152003479942E-5 -5.68250079470124E-5
i 5.092691666917201E-6 -1.701042196854067E-6 -.0002275424422623505 6.332378258596467E-6 -5.68250079470124E-5 .0001255473062148274

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 26.274   .35942 5 autocmod 2.8

[ 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-24 04:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin