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 ]  
9163 (1987 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2009163
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024802210635792 6.5311e-08  
a 3.161400401131969 3.7463e-08 AU
q 2.52127934904028 2.0907e-07 AU
i 1.347701150509545 7.5291e-06 deg
node 193.5727847813715 0.00024848 deg
peri 119.6879891114938 0.0002493 deg
M 281.0389090598885 2.3933e-05 deg
tp 2457250.827348087542
(2015-Aug-16.32734809)
0.00014051 JED
period 2053.135834134742
5.62
3.6495e-05
9.992e-08
d
yr
n .1753415404936984 3.1167e-09 deg/d
Q 3.801521453223658 4.5049e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      880  
   data-arc span      9783 days (26.78 yr)  
   first obs. used      1987-09-13  
   last obs. used      2014-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56392  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:21:07  

Additional Information
 Earth MOID = 1.50665 AU 
 T_jup = 3.172 
[ 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 MPO263431  

9163 (1987 RB1)          Discovered 1987-Sep-13 by Debehogne, H. at La Silla (809)
Reference: 19980910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 RB1 = 1993 TE43 = 1996 DV4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-01 11:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin