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 ]  
101122 (1998 RR54)
Classification: Main-belt Asteroid          SPK-ID: 2101122
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1413873060032106 3.9613e-08  
a 2.367595701076862 8.3167e-09 au
q 2.032847723196822 9.4051e-08 au
i 5.914398176045465 4.2421e-06 deg
node 222.2471744168422 3.6726e-05 deg
peri 155.5196144702268 3.9185e-05 deg
M 331.0077776005941 1.2531e-05 deg
tp 2459107.661491030334
(2020-Sep-15.16149103)		 4.633e-05 TDB
period 1330.637446121098
3.64		 7.0112e-06
1.92e-08		 d
yr
n .270547023195105 1.4255e-09 deg/d
Q 2.702343678956903 9.4926e-09 au
   Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      8579 days (23.49 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:17  

Additional Information
 Earth MOID = 1.03678 au 
 Jupiter MOID = 2.76164 au 
 T_jup = 3.526 
[ 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 16.3   n/a MPO436471  
diameter diameter 1.571 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.237   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101122 (1998 RR54)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-04 23:40 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin