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 ]  
102876 (1999 WL12)
Classification: Main-belt Asteroid          SPK-ID: 2102876
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .150502948413754 5.2705e-08  
a 2.382576616285582 1.2371e-08 au
q 2.023991810712937 1.241e-07 au
i 5.558497419983329 5.6828e-06 deg
node 216.1719556320661 4.1176e-05 deg
peri 158.4695840198711 4.4631e-05 deg
M 220.8935705164986 2.0824e-05 deg
tp 2459519.555075703596
(2021-Nov-01.05507570)
8.0585e-05 TDB
period 1343.286776514215
3.68
1.0462e-05
2.864e-08
d
yr
n .2679993626783017 2.0872e-09 deg/d
Q 2.741161421858228 1.4233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      9134 days (25.01 yr)  
   first obs. used      1995-06-22  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53987  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:52:07  

Additional Information
 Earth MOID = 1.02642 au 
 Jupiter MOID = 2.72759 au 
 T_jup = 3.516 
[ 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 16.63   n/a E2021B55  

102876 (1999 WL12)          Discovered 1999-Nov-29 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 WL12 = 1995 ME5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Feb-28 20:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin