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 ]  
58112 (1981 EC3)
Classification: Main-belt Asteroid          SPK-ID: 2058112
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2447008283285314 4.1309e-08  
a 2.358379360855283 1.0944e-08 au
q 1.781281977741083 9.6159e-08 au
i 7.730760444320248 4.9071e-06 deg
node 233.3679432967156 3.7728e-05 deg
peri 41.80938910797325 3.9709e-05 deg
M 117.7757140476947 1.5277e-05 deg
tp 2458167.715029628003
(2018-Feb-18.21502963)		 5.4501e-05 TDB
period 1322.87535332475
3.62		 9.2078e-06
2.521e-08		 d
yr
n .2721344827350672 1.8942e-09 deg/d
Q 2.935476743969483 1.3621e-08 au
   Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      13760 days (37.67 yr)  
   first obs. used      1981-02-14  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48192  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-30 18:54:03  

Additional Information
 Earth MOID = .773425 au 
 Jupiter MOID = 2.2005 au 
 T_jup = 3.500 
[ 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 15.7   n/a MPO459250  
diameter diameter 1.554 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.319   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58112 (1981 EC3)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EC3 = 2000 SZ7 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-23 23:41 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin