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 ]  
202951 (1999 RE)
Classification: Main-belt Asteroid          SPK-ID: 2202951
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3126430919838081 5.0238e-08  
a 2.64118883638109 1.5274e-08 au
q 1.81543939206179 1.3684e-07 au
i 12.07691190203147 6.1587e-06 deg
node 23.40967933277021 2.3598e-05 deg
peri 301.1196019140788 2.5007e-05 deg
M 318.2461989897824 8.4214e-06 deg
tp 2459182.340711772332
(2020-Nov-28.84071177)
3.7346e-05 TDB
period 1567.82507590195
4.29
1.36e-05
3.723e-08
d
yr
n .2296174525674662 1.9918e-09 deg/d
Q 3.46693828070039 2.005e-08 au
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      7651 days (20.95 yr)  
   first obs. used      1999-09-03  
   last obs. used      2020-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 04:57:46  

Additional Information
 Earth MOID = .838529 au 
 Jupiter MOID = 2.03147 au 
 T_jup = 3.294 
[ 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 15.4   n/a MPO433329  

202951 (1999 RE)          Discovered 1999-Sep-03 by Sarounova, L. at Ondrejov
Reference: 20090111/Numbers.arcLast Updated: 2009-02-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-29 02:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin