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
JPL Small-Body Database Browser
Search: [ help ]  
243598 (1998 SS99)
Classification: Main-belt Asteroid          SPK-ID: 2243598
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1768375120047027 6.53e-08  
a 2.644845898767281 2.0899e-08 au
q 2.177137930393433 1.7351e-07 au
i 12.75017856529131 6.649e-06 deg
node 202.6452264944522 2.3427e-05 deg
peri 161.1600034537164 2.7861e-05 deg
M 18.0834637672956 1.4775e-05 deg
tp 2458921.581630113916
(2020-Mar-13.08163011)
6.4115e-05 TDB
period 1571.082483123152
4.30
1.8622e-05
5.098e-08
d
yr
n .2291413747318706 2.716e-09 deg/d
Q 3.112553867141129 2.4595e-08 au
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      7150 days (19.58 yr)  
   first obs. used      1998-09-25  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58989  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:25:55  

Additional Information
 Earth MOID = 1.18 au 
 Jupiter MOID = 2.37176 au 
 T_jup = 3.336 
[ 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 16.2   n/a MPO440239  

243598 (1998 SS99)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 18:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin