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 ]  
58815 (1998 GR8)
Classification: Main-belt Asteroid          SPK-ID: 2058815
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1459368623485871 6.0393e-08  
a 2.802101409713819 2.0429e-08 au
q 2.393171521997632 1.6659e-07 au
i 14.52256920879285 6.0277e-06 deg
node 81.6011940533474 1.7247e-05 deg
peri 151.9161848453591 2.2188e-05 deg
M 234.5780363562833 1.5116e-05 deg
tp 2459597.391363335610
(2022-Jan-17.89136334)
7.504e-05 TDB
period 1713.263646638692
4.69
1.8736e-05
5.13e-08
d
yr
n .2101252779782585 2.2979e-09 deg/d
Q 3.211031297430007 2.341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      464  
   data-arc span      8238 days (22.55 yr)  
   first obs. used      1998-04-02  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:49:28  

Additional Information
 Earth MOID = 1.39001 au 
 Jupiter MOID = 1.84568 au 
 T_jup = 3.263 
[ 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 15.4   n/a MPO365931  

58815 (1998 GR8)          Discovered 1998-Apr-02 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ 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-Nov-27 11:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin