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 ]  
101985 (1999 RE61)
Classification: Main-belt Asteroid          SPK-ID: 2101985
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144327982858167 3.2677e-08  
a 2.275127414607149 8.003e-09 au
q 2.014778218096877 7.329e-08 au
i 4.329573014452346 3.6622e-06 deg
node 271.9583880818244 5.3956e-05 deg
peri 63.46974773982198 5.7291e-05 deg
M 73.546051770511 2.0222e-05 deg
tp 2458944.426949781671
(2020-Apr-04.92694978)
6.9992e-05 TDB
period 1253.449993022758
3.43
6.6137e-06
1.811e-08
d
yr
n .2872073094291077 1.5154e-09 deg/d
Q 2.53547661111742 8.9188e-09 au
  Orbit Determination Parameters
   # obs. used (total)      659  
   data-arc span      9885 days (27.06 yr)  
   first obs. used      1994-01-09  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51143  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:45  

Additional Information
 Earth MOID = 1.00723 au 
 Jupiter MOID = 2.77496 au 
 T_jup = 3.597 
[ 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 16.2   n/a MPO436477  

101985 (1999 RE61)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 RE61 = 2002 LH15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 15:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin