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 ]  
(2021 AD)
Classification: Apollo [NEO]          SPK-ID: 54104075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ 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 2459219.5 (2021-Jan-05.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4151891990375817 0.0028507  
a 1.584312108699507 0.0071307 au
q .9265228332630163 0.00034627 au
i 8.566407841970452 0.045794 deg
node 296.5956193133487 0.005989 deg
peri 206.2719313836894 0.015456 deg
M 343.636910843137 0.1191 deg
tp 2459252.607191053672
(2021-Feb-07.10719105)
0.017477 TDB
period 728.3825605951077
1.99
4.9175
0.01346
d
yr
n .4942457706646223 0.0033368 deg/d
Q 2.242101384135997 0.010091 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      9 days  
   first obs. used      2021-01-02  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .60786  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-11 05:21:50  

Additional Information
 Earth MOID = .0199965 au 
 Jupiter MOID = 2.80144 au 
 T_jup = 4.277 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 24.55   .53967 E2021-AD8 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Feb-25 20:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin