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 ]  
390185 (2012 WF16)
Classification: Main-belt Asteroid          SPK-ID: 2390185
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2307254685144046 9.4484e-08  
a 2.569394594021822 2.2373e-08 au
q 1.976569822517759 2.5649e-07 au
i 6.228280471028322 5.1095e-06 deg
node 164.0598004896395 3.9201e-05 deg
peri 216.0230806561431 4.1508e-05 deg
M 9.950087727290931 8.2583e-06 deg
tp 2459158.921478223881
(2020-Nov-05.42147822)
3.4717e-05 TDB
period 1504.335263130209
4.12
1.9648e-05
5.379e-08
d
yr
n .2393083568691428 3.1256e-09 deg/d
Q 3.162219365525885 2.7534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      4405 days (12.06 yr)  
   first obs. used      2008-12-21  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50647  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 16:52:51  

Additional Information
 Earth MOID = .981157 au 
 Jupiter MOID = 2.30613 au 
 T_jup = 3.385 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458178.5 (2018-Mar-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2330372842661978 9.488e-08  
q 1.969574439981013 2.5791e-07 au
tp 2457654.391649641135
(2016-Sep-22.89164964)
4.5537e-05 TDB
node 164.2121060429876 3.921e-05 deg
peri 215.8515777493943 4.1451e-05 deg
i 6.229910647919329 5.1164e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      4405 days (12.06 yr)  
   first obs. used      2008-12-21  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50647  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 16:52:51  

Additional Information
 Jupiter MOID = 2.30613 au 
 T_jup = 3.385 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.00230513190347E-15 -2.444996342049324E-14 2.954079719802742E-12 4.398934159043551E-14 8.609310530997785E-13 -2.521048897572666E-14
q -2.444996342049324E-14 6.651787167006889E-14 -8.172728869485008E-12 -1.198765418321384E-13 -2.369677240846823E-12 6.921911912429026E-14
tp 2.954079719802742E-12 -8.172728869485008E-12 2.073577113373407E-9 1.695994801180898E-11 6.260351290466159E-10 -9.146877511999393E-12
node 4.398934159043551E-14 -1.198765418321384E-13 1.695994801180898E-11 1.537444845001357E-9 -1.522740267028008E-9 1.087157434238474E-10
peri 8.609310530997785E-13 -2.369677240846823E-12 6.260351290466159E-10 -1.522740267028008E-9 1.718190168961896E-9 -1.108142744256111E-10
i -2.521048897572666E-14 6.921911912429026E-14 -9.146877511999393E-12 1.087157434238474E-10 -1.108142744256111E-10 2.617732346344539E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.77   n/a E2020R02  

390185 (2012 WF16)          Discovered 2008-Dec-21 by CSS at Catalina
Reference: Last Updated: 2014-03-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-08 00:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin