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 ]  
392135 (2009 GH4)
Classification: Main-belt Asteroid          SPK-ID: 2392135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1383181290429167 8.5822e-08  
a 3.145745443124546 8.2777e-08 au
q 2.710631818986278 2.6432e-07 au
i 9.925780300953196 8.8345e-06 deg
node 97.16161295620392 4.7161e-05 deg
peri 167.7214648671776 5.7648e-05 deg
M 249.3069295303943 4.0653e-05 deg
tp 2459227.116353097873
(2021-Jan-12.61635310)
0.00024642 TDB
period 2037.904325521218
5.58
8.0438e-05
2.202e-07
d
yr
n .1766520613807156 6.9726e-09 deg/d
Q 3.580859067262814 9.4226e-08 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      4437 days (12.15 yr)  
   first obs. used      2006-12-13  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6446  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:11:28  

Additional Information
 Earth MOID = 1.69525 au 
 Jupiter MOID = 1.52474 au 
 T_jup = 3.171 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO434452  

392135 (2009 GH4)          Discovered 2008-Jan-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2009 GH4 = 2011 WY98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-16 07:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin