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 ]  
58993 (1998 SF9)
Classification: Main-belt Asteroid          SPK-ID: 2058993
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .212048937465189 3.9304e-08  
a 3.058830233689483 1.4591e-08 au
q 2.410208532749232 1.2122e-07 au
i .6561253078924216 3.3529e-06 deg
node 62.93601163549478 0.00042587 deg
peri 252.9528804724558 0.000426 deg
M 346.2538792150247 8.8731e-06 deg
tp 2458675.112079271253
(2019-Jul-10.61207927)
4.8044e-05 TDB
period 1954.031174162949
5.35
1.3981e-05
3.828e-08
d
yr
n .1842345223351995 1.3182e-09 deg/d
Q 3.707451934629733 1.7685e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1153  
   data-arc span      9089 days (24.88 yr)  
   first obs. used      1995-01-07  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54287  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:05:44  

Additional Information
 Earth MOID = 1.39587 au 
 Jupiter MOID = 1.59738 au 
 T_jup = 3.200 
[ 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 14.5   n/a MPO266216  
diameter diameter 6.698 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58993 (1998 SF9)          Discovered 1998-Sep-17 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030614/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-22 03:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin