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 ]  
(2011 YJ28)
Classification: Apollo [NEO, PHA]          SPK-ID: 3591722
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09258071996574242 2.7021e-06  
a 1.059747926178988 7.0516e-05 au
q .9616357001911348 6.6183e-05 au
i 27.07254231696355 0.0064691 deg
node 290.110905417589 0.0011098 deg
peri 306.0164853094396 0.028435 deg
M 134.8032970182225 0.2452 deg
tp 2458851.289184678856
(2020-Jan-02.78918468)
0.25652 TDB
period 398.4761107760647
1.09
0.039772
0.0001089
d
yr
n .9034418632998367 9.0174e-05 deg/d
Q 1.157860152166841 7.7045e-05 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      34 days  
   first obs. used      2011-12-27  
   last obs. used      2012-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .44395  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:51:40  

Additional Information
 Earth MOID = .0195983 au 
 Jupiter MOID = 3.97328 au 
 T_jup = 5.710 
[ 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 21.3   n/a MPO227508  

[ 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-29 14:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin