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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
(2012 DF4)
Classification: Apollo [NEO]          SPK-ID: 3599477
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 .5396374898404777 0.00044961  
a 1.505015388694445 0.0011247 au
q .6928526621680841 0.00015888 au
i 4.707878997511521 0.0039444 deg
node 146.8368736356158 2.6259e-05 deg
peri 87.2035631351301 0.0004587 deg
M 146.0797137284019 1.7868 deg
tp 2458726.848869837731
(2019-Aug-31.34886984)
3.0404 TDB
period 674.3880060004718
1.85
0.75599
0.00207
d
yr
n .5338173229607351 0.00059841 deg/d
Q 2.317178115220806 0.0017317 au
  Orbit Determination Parameters
   # obs. used (total)      40  
   data-arc span      5 days  
   first obs. used      2012-02-16  
   last obs. used      2012-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .48185  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:50:55  

Additional Information
 Earth MOID = .00779349 au 
 Jupiter MOID = 2.69757 au 
 T_jup = 4.360 
[ 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 25.9   n/a MPO223120  

[ 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-Jun-04 09:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin