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 ]  
152117 (2004 RK242)
Classification: Main-belt Asteroid          SPK-ID: 2152117
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1716158719332325 4.6835e-08  
a 3.117212990994734 3.6359e-08 au
q 2.582249765543573 1.5458e-07 au
i 1.009402311542275 5.413e-06 deg
node 120.5978951270921 0.00038541 deg
peri 166.7246112033529 0.00038592 deg
M 33.58376748181237 2.215e-05 deg
tp 2459012.968141887212
(2020-Jun-12.46814189)
0.00012226 TDB
period 2010.24107724558
5.50
3.5171e-05
9.629e-08
d
yr
n .1790829985890398 3.1332e-09 deg/d
Q 3.652176216445895 4.2599e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      6740 days (18.45 yr)  
   first obs. used      2002-02-08  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63337  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:38:04  

Additional Information
 Earth MOID = 1.56394 au 
 Jupiter MOID = 1.51949 au 
 T_jup = 3.194 
[ 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 16.09   n/a E2021B55  
diameter diameter 3.835 km 0.532 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.048   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

152117 (2004 RK242)          Discovered 2004-Sep-10 by Spacewatch at Kitt Peak
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

[ 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 2021-Apr-11 16:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin