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 ]  
(2012 EM1)
Classification: Apollo [NEO]          SPK-ID: 3600479
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.


Orbital Elements at Epoch 2455989.5 (2012-Mar-03.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4254290451904444 0.00075935  
a 1.735801817960003 0.0023028 au
q .9973413079054413 5.1257e-06 au
i 2.128094333296169 0.0029379 deg
node 342.2085677135933 6.5891e-05 deg
peri 200.5273613966563 0.0060177 deg
M 352.5996985325176 0.014317 deg
tp 2456006.670998348635
(2012-Mar-20.17099835)
0.0010805 TDB
period 835.3118359665392
2.29
1.6623
0.004551
d
yr
n .4309767735823401 0.00085764 deg/d
Q 2.474262328014564 0.0032825 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      5 days  
   first obs. used      2012-03-02  
   last obs. used      2012-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .3383  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 06:07:13  

Additional Information
 Earth MOID = .00991117 au 
 Jupiter MOID = 2.48268 au 
 T_jup = 4.042 
[ 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 26.5   n/a MPO227527  

[ 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 2021-May-12 15:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin