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 AA1)
Classification: Aten [NEO]          SPK-ID: 54104276
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .152446490409402 0.0003408  
a .9806965833841119 0.00022921 au
q .8311928310907126 0.00013998 au
i 17.26532157611152 0.053507 deg
node 286.0294025999216 0.00020846 deg
peri 303.5195583543718 0.065917 deg
M 231.1637151383872 0.1199 deg
tp 2459327.450995994404
(2021-Apr-22.95099599)
0.073638 TDB
period 354.7320431280343
0.97
0.12436
0.0003405
d
yr
n 1.014850524428278 0.00035579 deg/d
Q 1.130200335677511 0.00026416 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      8 days  
   first obs. used      2021-01-04  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .43201  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:31  

Additional Information
 Earth MOID = .0560654 au 
 Jupiter MOID = 3.91211 au 
 T_jup = 6.125 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459219.5 (2021-Jan-05.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1525285469284934 0.0003403  
q .8311102698996738 0.00013937 au
tp 2459327.426422316612
(2021-Apr-22.92642232)
0.073436 TDB
node 286.0280383217279 0.00019635 deg
peri 303.5072112201567 0.065808 deg
i 17.26791712511347 0.053493 deg
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      8 days  
   first obs. used      2021-01-04  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .43201  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:31  

Additional Information
 Jupiter MOID = 3.91211 au 
 T_jup = 6.125 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.158032769210325E-7 -4.742050706987796E-8 -2.498795743594198E-5 -6.649231833100377E-8 -2.239166108878268E-5 1.8201181781901E-5
q -4.742050706987796E-8 1.942357090308687E-8 1.023189000600632E-5 2.72123555785786E-8 9.16790639037341E-6 -7.452177930707598E-6
tp -2.498795743594198E-5 1.023189000600632E-5 .005392845410189537 1.433380806051586E-5 .004832595789089845 -.003926832759110627
node -6.649231833100377E-8 2.72123555785786E-8 1.433380806051586E-5 3.855430563690585E-8 1.284706004104079E-5 -1.046594522702238E-5
peri -2.239166108878268E-5 9.16790639037341E-6 .004832595789089845 1.284706004104079E-5 .004330693472879154 -.003519003902644216
i 1.8201181781901E-5 -7.452177930707598E-6 -.003926832759110627 -1.046594522702238E-5 -.003519003902644216 .002861496794795193

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 26.10   .38723 E2021-AE8 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-May-13 20:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin