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 ]  
17818 (1998 FE118)
Classification: Main-belt Asteroid          SPK-ID: 2017818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05481168588861751 2.9353e-08  
a 2.765707095719605 1.2428e-08 au
q 2.614114027129101 8.4195e-08 au
i 9.141063371298964 9.957e-07 deg
node 223.2362568538414 3.1084e-06 deg
peri 326.274087211559 1.4247e-05 deg
M 349.7554572938605 1.1361e-05 deg
tp 2459248.307692147036
(2021-Feb-02.80769215)
5.297e-05 TDB
period 1679.993892027864
4.60
1.1324e-05
3.1e-08
d
yr
n .2142864933666253 1.4444e-09 deg/d
Q 2.917300164310108 1.3109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2373  
   data-arc span      10707 days (29.31 yr)  
   first obs. used      1991-11-29  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43149  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:36:55  

Additional Information
 Earth MOID = 1.61653 au 
 Jupiter MOID = 2.06555 au 
 T_jup = 3.319 
[ 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 12.88   n/a E2021B10  
diameter diameter 7.510 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.217   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17818 (1998 FE118)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 FE118 = 1991 XT3 = 1995 XX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-19 00:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin