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 ]  
26838 (1991 RC9)
Classification: Main-belt Asteroid          SPK-ID: 2026838
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09812595680261511 5.6534e-08  
a 2.290693544569654 1.1496e-08 au
q 2.065917048767183 1.3163e-07 au
i 4.057107145989902 6.2405e-06 deg
node 18.7375703261146 6.3749e-05 deg
peri 338.0800501355301 6.7973e-05 deg
M 10.68203856140096 2.4126e-05 deg
tp 2457362.924864496359
(2015-Dec-06.42486450)
8.4825e-05 JED
period 1266.335887439144
3.47
9.5331e-06
2.61e-08
d
yr
n .2842847648644091 2.1401e-09 deg/d
Q 2.515470040372126 1.2624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1114  
   data-arc span      8839 days (24.20 yr)  
   first obs. used      1991-09-11  
   last obs. used      2015-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50383  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:02:08  

Additional Information
 Earth MOID = 1.06045 au 
 Jupiter MOID = 2.85328 au 
 T_jup = 3.589 
[ 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 14.6 mag n/a MPO347723  

26838 (1991 RC9)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RC9 = 1998 SJ159 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-13 21:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin