Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
154877 (2004 RA118)
Classification: Main-belt Asteroid          SPK-ID: 2154877
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09213064465139661 4.9063e-08  
a 2.770930116383231 1.8574e-08 au
q 2.515642538476874 1.4088e-07 au
i 13.104422073711 7.1047e-06 deg
node 19.00395343881657 1.8204e-05 deg
peri 227.5912250354968 3.9706e-05 deg
M 286.2276432518788 3.6675e-05 deg
tp 2459545.745433690637
(2021-Nov-27.24543369)		 0.00017254 TDB
period 1684.755125188469
4.61		 1.6939e-05
4.638e-08		 d
yr
n .2136809050868611 2.1485e-09 deg/d
Q 3.026217694289587 2.0285e-08 au
   Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      9316 days (25.51 yr)  
   first obs. used      1995-10-18  
   last obs. used      2021-04-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61001  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:44:06  

Additional Information
 Earth MOID = 1.52227 au 
 Jupiter MOID = 2.01179 au 
 T_jup = 3.293 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.39   n/a MPCxxxxx  

154877 (2004 RA118)          Discovered 2004-Sep-07 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 2004 RA118 = 1998 HJ21 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-17 01:01 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin