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 ]  
12904 (1998 RB65)
Classification: Outer Main-belt Asteroid          SPK-ID: 2012904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335828942936878 3.5887e-08  
a 3.2106563120282 1.693e-08 au
q 2.781767549285175 1.1631e-07 au
i .08198869145411601 3.9438e-06 deg
node 91.1911465277918 0.003124 deg
peri 147.4340908458606 0.0031241 deg
M 29.46949716657871 1.6779e-05 deg
tp 2458828.487748853923
(2019-Dec-10.98774885)
9.777e-05 TDB
period 2101.305294167561
5.75
1.6621e-05
4.551e-08
d
yr
n .1713220829925217 1.3551e-09 deg/d
Q 3.639545074771225 1.9192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1921  
   data-arc span      11100 days (30.39 yr)  
   first obs. used      1990-03-17  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50221  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:38:14  

Additional Information
 Earth MOID = 1.76963 au 
 Jupiter MOID = 1.36804 au 
 T_jup = 3.178 
[ 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 13.3   n/a MPO473941  

12904 (1998 RB65)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RB65 = 1990 FN2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-18 06:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin