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 ]  
17027 (1999 EF12)
Classification: Main-belt Asteroid          SPK-ID: 2017027
[ 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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08827442877803376 3.5614e-08  
a 2.649019337500777 1.1914e-08 au
q 2.415178668660931 9.5052e-08 au
i 8.27529348351676 3.8312e-06 deg
node 135.2740689666618 2.7284e-05 deg
peri 212.5235681900265 3.5411e-05 deg
M 76.41789353929786 2.3436e-05 deg
tp 2458266.213620834172
(2018-May-27.71362083)		 0.00010226 TDB
period 1574.802587797213
4.31		 1.0624e-05
2.909e-08		 d
yr
n .2286000815527978 1.5422e-09 deg/d
Q 2.882860006340624 1.2966e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2030  
   data-arc span      14684 days (40.20 yr)  
   first obs. used      1979-09-24  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47927  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:16:12  

Additional Information
 Earth MOID = 1.41081 au 
 Jupiter MOID = 2.47552 au 
 T_jup = 3.371 
[ 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 13.4   n/a MPO502299  
diameter diameter 9.845 km 2.886 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.067   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

17027 (1999 EF12)          Discovered 1999-Mar-15 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 EF12 = 1979 SB4 
[ 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-27 03:20 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin