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 AE4)
Classification: Apollo [NEO, PHA]          SPK-ID: 54105102
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162374171362293 9.1248e-06  
a 1.159646337261558 1.1631e-05 au
q .9713497241753941 9.2265e-07 au
i 15.77380506154571 0.00057662 deg
node 49.55959064856776 0.00025132 deg
peri 172.3863448937778 0.00021169 deg
M 47.6985586625675 0.00076925 deg
tp 2459336.064861335290
(2021-May-01.56486134)
0.00017726 TDB
period 456.12803676539
1.25
0.0068622
1.879e-05
d
yr
n .7892520761339791 1.1874e-05 deg/d
Q 1.347942950347721 1.3519e-05 au
  Orbit Determination Parameters
   # obs. used (total)      35  
   data-arc span      86 days  
   first obs. used      2021-01-06  
   last obs. used      2021-04-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .36162  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:45  

Additional Information
 Earth MOID = .0368738 au 
 Jupiter MOID = 3.62399 au 
 T_jup = 5.384 
[ 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 21.80   .32021 E2021G08 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-Jul-31 04:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin