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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362596412259435 5.7017e-08  
a 2.431979162611158 1.9038e-08 AU
q 2.100598554444791 1.3131e-07 AU
i 3.74907932868348 7.384e-06 deg
node 73.14042759500978 8.9457e-05 deg
peri 83.84268743494377 9.4974e-05 deg
M 121.5871026176296 3.2849e-05 deg
tp 2456532.632142821903
(2013-Aug-28.13214282)
0.00012343 JED
period 1385.282032040896
3.79
1.6266e-05
4.453e-08
d
yr
n .2598748786697408 3.0515e-09 deg/d
Q 2.763359770777526 2.1632e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      8506 days (23.29 yr)  
   first obs. used      1991-04-11  
   last obs. used      2014-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47105  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:49:41  

Additional Information
 Earth MOID = 1.11472 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 13.6 mag n/a MPO302246  

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-Aug-28 23:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin