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 ]  
35025 (1981 EA15)
Classification: Main-belt Asteroid          SPK-ID: 2035025
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04061253260942183 5.0735e-08  
a 3.114071860537629 3.1205e-08 au
q 2.987601515553461 1.6267e-07 au
i 9.880713414146795 9.0801e-06 deg
node 333.5209669671911 3.2114e-05 deg
peri 281.5706589001056 0.00012691 deg
M 267.7640861786318 0.00012565 deg
tp 2459114.767318810430
(2020-Sep-22.26731881)
0.0007014 TDB
period 2007.203345220878
5.50
3.0171e-05
8.26e-08
d
yr
n .1793540255187173 2.6959e-09 deg/d
Q 3.240542205521796 3.2473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      13926 days (38.13 yr)  
   first obs. used      1981-02-12  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62019  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:44:58  

Additional Information
 Earth MOID = 1.99282 au 
 Jupiter MOID = 1.85952 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 14.3   n/a MPO395337  
diameter diameter 4.536 km 1.342 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.179   0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35025 (1981 EA15)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EA15 = 1999 RH229 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Oct-16 23:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin