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 US9)
Classification: Apollo [NEO]          SPK-ID: 3612166
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2467667588190759 1.1493e-05  
a 1.092914023285005 6.2271e-06 au
q .8232191720910486 7.8748e-06 au
i 8.278791502972656 0.00036529 deg
node 334.7062081978148 0.00032421 deg
peri 182.934579197107 0.00020481 deg
M 129.7263007683066 0.018947 deg
tp 2458850.115540973811
(2020-Jan-01.61554097)
0.020679 TDB
period 417.327904432579
1.14
0.0035667
9.765e-06
d
yr
n .8626310298839828 7.3725e-06 deg/d
Q 1.362608874478962 7.7638e-06 au
  Orbit Determination Parameters
   # obs. used (total)      58  
   data-arc span      261 days  
   first obs. used      2012-10-16  
   last obs. used      2013-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .46652  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:48:28  

Additional Information
 Earth MOID = .13321 au 
 Jupiter MOID = 3.62133 au 
 T_jup = 5.640 
[ 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 21.6   n/a MPO265883  

[ 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-Feb-24 13:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin