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 ]  
85167 (1989 RS2)
Classification: Main-belt Asteroid          SPK-ID: 2085167
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .22880614543705 3.8059e-08  
a 2.427918786263052 1.0513e-08 au
q 1.872396047344002 9.1577e-08 au
i 8.853887910892412 5.415e-06 deg
node 353.1734043081551 3.1394e-05 deg
peri 35.25610249382776 3.4001e-05 deg
M 15.9591880166321 1.383e-05 deg
tp 2458939.242685917187
(2020-Mar-30.74268592)
5.2909e-05 TDB
period 1381.814228069126
3.78
8.9751e-06
2.457e-08
d
yr
n .2605270612266346 1.6922e-09 deg/d
Q 2.983441525182101 1.2919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      11013 days (30.15 yr)  
   first obs. used      1989-09-01  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51315  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:09:23  

Additional Information
 Earth MOID = .883826 au 
 Jupiter MOID = 2.50909 au 
 T_jup = 3.457 
[ 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 14.8   n/a MPO432396  
diameter diameter 5.523 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85167 (1989 RS2)          Discovered 1989-Sep-07 by Mrkos, A. at Klet
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1989 RS2 = 1993 UU2 = 2001 XX253 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-06 13:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin