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 ]  
66630 (1999 RS208)
Classification: Main-belt Asteroid          SPK-ID: 2066630
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2253834601812578 5.5109e-08  
a 2.641379179538972 1.3796e-08 au
q 2.046056000403747 1.5042e-07 au
i 7.242538804955149 4.895e-06 deg
node 231.4722948754777 4.4682e-05 deg
peri 95.10050884935926 4.5752e-05 deg
M 6.505894541008461 1.0046e-05 deg
tp 2459172.163313160201
(2020-Nov-18.66331316)
4.3685e-05 TDB
period 1567.994562166112
4.29
1.2284e-05
3.363e-08
d
yr
n .2295926329633927 1.7987e-09 deg/d
Q 3.236702358674198 1.6905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      632  
   data-arc span      9018 days (24.69 yr)  
   first obs. used      1995-11-14  
   last obs. used      2020-07-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55164  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:51  

Additional Information
 Earth MOID = 1.04833 au 
 Jupiter MOID = 2.18318 au 
 T_jup = 3.347 
[ 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 15.54   n/a E2021B10  

66630 (1999 RS208)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RS208 = 1995 VD9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-18 09:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin