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 ]  
101459 (1998 WD7)
Classification: Main-belt Asteroid          SPK-ID: 2101459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1843239544150169 3.4069e-08  
a 2.410857669495412 9.2882e-09 au
q 1.966478850322246 8.4713e-08 au
i 2.536936407221051 3.8223e-06 deg
node 35.24374676551552 9.2663e-05 deg
peri 44.80621822891573 9.3364e-05 deg
M 305.883631086704 1.284e-05 deg
tp 2459406.033175501214
(2021-Jul-10.53317550)
4.9301e-05 TDB
period 1367.274720500655
3.74
7.9015e-06
2.163e-08
d
yr
n .2632974885019295 1.5216e-09 deg/d
Q 2.855236488668579 1.1e-08 au
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1998-11-18  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53028  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:36:53  

Additional Information
 Earth MOID = .982693 au 
 Jupiter MOID = 2.39006 au 
 T_jup = 3.495 
[ 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 16.53   n/a E2021B55  

101459 (1998 WD7)          Discovered 1998-Nov-19 by Kawasato, N. at Uenohara
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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 2021-Apr-20 04:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin