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 ]  
6651 (1991 RV9)
Classification: Main-belt Asteroid          SPK-ID: 2006651
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0652231860006269 4.4445e-08  
a 2.377617481500535 1.1859e-08 AU
q 2.222541694266283 1.0815e-07 AU
i 3.812873738049402 5.8854e-06 deg
node 11.76005401194151 6.2618e-05 deg
peri 293.3504548461059 7.9008e-05 deg
M 171.7409269933591 5.0133e-05 deg
tp 2456361.673818705233
(2013-Mar-10.17381871)
0.00018568 JED
period 1339.095050273071
3.67
1.0019e-05
2.743e-08
d
yr
n .2688382724785578 2.0114e-09 deg/d
Q 2.532693268734786 1.2632e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1374  
   data-arc span      23124 days (63.31 yr)  
   first obs. used      1951-12-01  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46628  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:25:51  

Additional Information
 Earth MOID = 1.212 AU 
 T_jup = 3.535 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO279585  

6651 (1991 RV9)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 RV9 = 1990 HL4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Apr-25 10:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin