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 ]  
66511 (1999 RW91)
Classification: Main-belt Asteroid          SPK-ID: 2066511
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1889751720836569 4.8927e-08  
a 2.524917497608088 6.975e-09 au
q 2.047770779000563 1.2328e-07 au
i .5755200862312944 4.6759e-06 deg
node 193.5433988314765 0.00028276 deg
peri 166.9770691937619 0.00028287 deg
M 107.4828982136887 7.2977e-06 deg
tp 2458762.971767087641
(2019-Oct-06.47176709)
2.9078e-05 TDB
period 1465.443958677971
4.01
6.0724e-06
1.663e-08
d
yr
n .2456593429371183 1.0179e-09 deg/d
Q 3.002064216215613 8.2931e-09 au
  Orbit Determination Parameters
   # obs. used (total)      924  
   data-arc span      10743 days (29.41 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49659  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:22:47  

Additional Information
 Earth MOID = 1.04298 au 
 Jupiter MOID = 2.4527 au 
 T_jup = 3.429 
[ 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 16.21   n/a MPCxxxxx  

66511 (1999 RW91)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-15 16:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin