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 ]  
13381 (1998 WJ17)
Classification: Outer Main-belt Asteroid          SPK-ID: 2013381
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145174733095857 4.1173e-08  
a 4.0018453275199 4.0193e-08 au
q 3.14337957928456 1.8108e-07 au
i 4.204818266240281 5.2619e-06 deg
node 233.9538824805728 6.048e-05 deg
peri 81.97081118239208 6.1784e-05 deg
M 334.1858415965524 1.4537e-05 deg
tp 2459210.173886499007
(2020-Dec-26.67388650)
0.00011934 TDB
period 2924.077475621345
8.01
4.4053e-05
1.206e-07
d
yr
n .1231157529174232 1.8548e-09 deg/d
Q 4.860311075755241 4.8816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1506  
   data-arc span      12494 days (34.21 yr)  
   first obs. used      1986-04-02  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53147  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:36:05  

Additional Information
 Earth MOID = 2.13373 au 
 Jupiter MOID = .589541 au 
 T_jup = 3.009 
[ 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 12.4   n/a MPO439185  
diameter diameter 15.728 km 0.557 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.103   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

13381 (1998 WJ17)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WJ17 = 1989 SB7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-01 00:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin