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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
74209 (1998 RJ60)
Classification: Main-belt Asteroid          SPK-ID: 2074209
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2252880017420663 5.2979e-08  
a 2.627922382874245 1.1335e-08 au
q 2.035883000503257 1.4158e-07 au
i 10.20531082818682 6.3014e-06 deg
node 344.683438101203 2.0059e-05 deg
peri 9.001185349562522 2.3132e-05 deg
M 308.1212622298608 8.9962e-06 deg
tp 2458824.735375401813
(2019-Dec-07.23537540)
3.9173e-05 TDB
period 1556.027355606112
4.26
1.0067e-05
2.756e-08
d
yr
n .2313584004182054 1.4968e-09 deg/d
Q 3.219961765245232 1.3888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      818  
   data-arc span      13889 days (38.03 yr)  
   first obs. used      1981-10-23  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55209  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:45:25  

Additional Information
 Earth MOID = 1.03028 au 
 Jupiter MOID = 2.21844 au 
 T_jup = 3.343 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO432295  

74209 (1998 RJ60)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RJ60 = 1981 UC13 = 2000 CF90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 05:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin