Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
30839 (1991 GH1)
Classification: Main-belt Asteroid          SPK-ID: 2030839
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362381381852259 7.0278e-08  
a 2.431683566823865 2.0846e-08 AU
q 2.100395525024172 1.6887e-07 AU
i 3.749333794495422 7.4038e-06 deg
node 73.14138904784502 0.000119 deg
peri 83.78853331530598 0.00012327 deg
M 69.6671035408272 3.2554e-05 deg
tp 2456532.469466562610
(2013-Aug-27.96946656)
0.00012351 JED
period 1385.029477806744
3.79
1.781e-05
4.876e-08
d
yr
n .2599222657485068 3.3424e-09 deg/d
Q 2.762971608623558 2.3686e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      940  
   data-arc span      8385 days (22.96 yr)  
   first obs. used      1991-04-11  
   last obs. used      2014-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50579  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:30:52  

Additional Information
 Earth MOID = 1.11411 AU 
 T_jup = 3.491 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a PDS3 (MPO 18556)  

30839 (1991 GH1)          Discovered 1991-Apr-11 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 GH1 = 1968 DA = 1999 LU25 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-23 22:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin