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 ]  
379734 (2011 GR55)
Classification: Main-belt Asteroid          SPK-ID: 2379734
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06421896418775069 7.2281e-08  
a 3.12578899352675 6.7224e-08 au
q 2.925054062092991 2.0979e-07 au
i 11.13414850758019 6.2461e-06 deg
node 78.06575498592565 3.7515e-05 deg
peri 250.9264816701227 6.8264e-05 deg
M 129.7898446595519 5.6894e-05 deg
tp 2458272.760203217531
(2018-Jun-03.26020322)
0.00032545 TDB
period 2018.542571869915
5.53
6.5117e-05
1.783e-07
d
yr
n .1783464986158341 5.7534e-09 deg/d
Q 3.32652392496051 7.1542e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      6745 days (18.47 yr)  
   first obs. used      2001-07-18  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52695  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 09:36:42  

Additional Information
 Earth MOID = 1.93676 au 
 Jupiter MOID = 1.90925 au 
 T_jup = 3.182 
[ 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 15.3   n/a MPO455732  

379734 (2011 GR55)          Discovered 2008-Nov-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-23 05:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin