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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
357073 (2001 RK20)
Classification: Main-belt Asteroid          SPK-ID: 2357073
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1656393144429456 6.7032e-08  
a 2.656557923130789 3.1492e-08 au
q 2.216527489965429 1.7922e-07 au
i 13.54502245406385 1.0319e-05 deg
node 161.7446992433548 2.2263e-05 deg
peri 112.51687987494 3.9308e-05 deg
M 74.98430404698237 3.5073e-05 deg
tp 2458271.083593307647
(2018-Jun-01.58359331)		 0.00015156 TDB
period 1581.52973367524
4.33		 2.8122e-05
7.699e-08		 d
yr
n .2276277153281295 4.0476e-09 deg/d
Q 3.096588356296147 3.6709e-08 au
   Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      5700 days (15.61 yr)  
   first obs. used      2001-08-16  
   last obs. used      2017-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5923  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 06:54:38  

Additional Information
 Earth MOID = 1.24051 au 
 Jupiter MOID = 2.19745 au 
 T_jup = 3.329 
[ 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 16.5   n/a MPO311057  

357073 (2001 RK20)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2001 RK20 = 2004 DC57 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-09 13:10 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin