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 ]  
47801 (2000 EF55)
Classification: Outer Main-belt Asteroid          SPK-ID: 2047801
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1358551255946805 3.3912e-08  
a 3.20116399946777 2.0211e-08 au
q 2.766269462270906 1.111e-07 au
i 14.36519948840415 4.319e-06 deg
node 172.2081702407507 1.4948e-05 deg
peri 322.8821626382706 2.1292e-05 deg
M 171.2092296063195 1.518e-05 deg
tp 2457605.587275397202
(2016-Aug-05.08727540)
8.6399e-05 TDB
period 2091.99341461079
5.73
1.9812e-05
5.424e-08
d
yr
n .1720846717230116 1.6297e-09 deg/d
Q 3.636058536664634 2.2957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1416  
   data-arc span      10292 days (28.18 yr)  
   first obs. used      1991-10-02  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49478  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:06:26  

Additional Information
 Earth MOID = 1.7937 au 
 Jupiter MOID = 1.43719 au 
 T_jup = 3.131 
[ 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 13.3   n/a MPO452822  
diameter diameter 12.957 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47801 (2000 EF55)          Discovered 2000-Mar-10 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ 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 2020-Jan-19 16:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin