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 AF8)
Classification: Apollo [NEO, PHA]          SPK-ID: 54106739
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5151605286544422 1.3821e-08  
a 2.018135752895073 5.2093e-08 au
q .9784718715372164 7.7073e-09 au
i 9.697803820607716 3.1334e-06 deg
node 42.56719536430522 1.141e-05 deg
peri 168.9511178717089 1.2307e-05 deg
M 315.8660809449176 2.475e-06 deg
tp 2459328.878998910828
(2021-Apr-24.37899891)
4.2607e-06 TDB
period 1047.186395348589
2.87
4.0546e-05
1.11e-07
d
yr
n .3437783393663767 1.3311e-08 deg/d
Q 3.057799634252929 7.893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      379  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      2373 days (6.50 yr)  
   first obs. used      2014-12-01  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41198  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-16 06:19:55  

Additional Information
 Earth MOID = .0233128 au 
 Jupiter MOID = 1.90787 au 
 T_jup = 3.631 
[ 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 20.21   .28744 E2021-HE4 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-Jun-25 02:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin