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 ]  
249891 (2001 RS61)
Classification: Main-belt Asteroid          SPK-ID: 2249891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2008217277147758 5.266e-08  
a 2.743901933017167 1.8487e-08 au
q 2.192866806148746 1.4834e-07 au
i 4.433142429840454 5.7214e-06 deg
node 81.12326073673943 7.5915e-05 deg
peri 260.8787151834555 7.7417e-05 deg
M 48.00206619529946 1.3479e-05 deg
tp 2458779.135111958275
(2019-Oct-22.63511196)
6.1751e-05 TDB
period 1660.165197281125
4.55
1.6778e-05
4.594e-08
d
yr
n .2168458901497133 2.1915e-09 deg/d
Q 3.294937059885587 2.2199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      6634 days (18.16 yr)  
   first obs. used      2001-08-28  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56226  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:14:32  

Additional Information
 Earth MOID = 1.19009 au 
 Jupiter MOID = 2.1223 au 
 T_jup = 3.315 
[ 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 16.8   n/a MPO446306  
diameter diameter 1.886 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249891 (2001 RS61)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

Alternate Designations
 2001 RS61 = 2006 VC133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-29 15:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin