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 AF7)
Classification: Apollo [NEO]          SPK-ID: 54106002
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5338310654301008 0.00027314  
a 2.155355621793109 0.0012832 au
q 1.004759833830536 9.4568e-06 au
i 2.433812346819528 0.0010957 deg
node 23.25901417557201 0.0017507 deg
peri 109.7245799511226 0.0010543 deg
M 345.6291252869219 0.012731 deg
tp 2459246.637869273705
(2021-Feb-01.13786927)
0.00033121 TDB
period 1155.784409101998
3.16
1.0321
0.002826
d
yr
n .3114767747037761 0.00027815 deg/d
Q 3.305951409755681 0.0019682 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      47 days  
   first obs. used      2021-01-03  
   last obs. used      2021-02-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40339  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-20 05:21:09  

Additional Information
 Earth MOID = .0430823 au 
 Jupiter MOID = 1.76104 au 
 T_jup = 3.502 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459232.5 (2021-Jan-18.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5340793268722083 0.00027294  
q 1.004734776900504 9.4833e-06 au
tp 2459246.638319350753
(2021-Feb-01.13831935)
0.00032915 TDB
node 23.18031485351589 0.0018629 deg
peri 109.8067976333231 0.0011622 deg
i 2.43341492966056 0.001096 deg
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      47 days  
   first obs. used      2021-01-03  
   last obs. used      2021-02-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40339  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-20 05:21:09  

Additional Information
 Jupiter MOID = 1.76104 au 
 T_jup = 3.502 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.44941468970222E-8 2.588266737430475E-9 8.902818343273157E-8 4.913341397887425E-7 -2.849064808539709E-7 2.991271508276678E-7
q 2.588266737430475E-9 8.993293374685345E-11 3.091475720189864E-9 1.708162878528125E-8 -9.911450148609214E-9 1.039302632535787E-8
tp 8.902818343273157E-8 3.091475720189864E-9 1.083407951712411E-7 5.735347008128252E-7 -3.246847032225267E-7 3.575937774282894E-7
node 4.913341397887425E-7 1.708162878528125E-8 5.735347008128252E-7 3.470525084197914E-6 -2.123417588718141E-6 1.97163113058868E-6
peri -2.849064808539709E-7 -9.911450148609214E-9 -3.246847032225267E-7 -2.123417588718141E-6 1.350724366124908E-6 -1.142621443161058E-6
i 2.991271508276678E-7 1.039302632535787E-8 3.575937774282894E-7 1.97163113058868E-6 -1.142621443161058E-6 1.201151970805421E-6

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 25.1   .46271 E2021D54 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-Apr-13 10:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin