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 ]  
101139 (1998 RA66)
Classification: Main-belt Asteroid          SPK-ID: 2101139
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08611271078799142 3.6295e-08  
a 2.255617608626436 9.3786e-09 au
q 2.061380261846487 8.2209e-08 au
i 9.250723350481906 3.9163e-06 deg
node 184.2563692508295 2.2296e-05 deg
peri 173.6997745626252 3.0724e-05 deg
M 150.3094958255621 2.1328e-05 deg
tp 2458483.868885196811
(2018-Dec-31.36888520)		 7.2599e-05 TDB
period 1237.36162048598
3.39		 7.7172e-06
2.113e-08		 d
yr
n .2909416245338273 1.8146e-09 deg/d
Q 2.449854955406385 1.0186e-08 au
   Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      7863 days (21.53 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56305  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:11  

Additional Information
 Earth MOID = 1.05796 au 
 Jupiter MOID = 2.8817 au 
 T_jup = 3.602 
[ 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 16.0   n/a MPO449612  
diameter diameter 2.039 km 0.632 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.203   0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101139 (1998 RA66)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 RA66 = 2003 AU11 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 17:48 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin