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JPL Small-Body Database Browser
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(2020 AL2)
Classification: Apollo [NEO]          SPK-ID: 3978223
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458854.5 (2020-Jan-06.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7759535959474056 0.0029517  
a 2.271351783331763 0.02553 au
q .5088881993939288 0.00098471 au
i 3.057646608876883 0.013701 deg
node 103.6809562050897 0.0066257 deg
peri 102.3034867591097 0.0077668 deg
M 346.0892796159492 0.2627 deg
tp 2458902.813906061480
(2020-Feb-23.31390606)
0.097833 TDB
period 1250.331090119147
3.42
21.08
0.05771
d
yr
n .2879237370364795 0.0048543 deg/d
Q 4.033815367269597 0.04534 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      2 days  
   first obs. used      2020-01-05  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .54714  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-07 11:42:07  

Additional Information
 Earth MOID = .00580291 au 
 Jupiter MOID = .936829 au 
 T_jup = 3.123 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 8.712270252795325E-6 -2.905747461518831E-6 -.0002887681914003738 1.954737481401935E-5 -2.136931270533827E-5 4.042962787301841E-5
q -2.905747461518831E-6 9.696522799413274E-7 9.631299234162711E-5 -6.516017786708353E-6 7.063298589590409E-6 -1.347809625259988E-5
tp -.0002887681914003738 9.631299234162711E-5 .009571230797212407 -.0006478833999458769 .0007080404337963171 -.001340014689701648
node 1.954737481401935E-5 -6.516017786708353E-6 -.0006478833999458769 4.390020684271761E-5 -4.839485396946665E-5 9.077440355661809E-5
peri -2.136931270533827E-5 7.063298589590409E-6 .0007080404337963171 -4.839485396946665E-5 6.032378022484176E-5 -9.994401407947651E-5
i 4.042962787301841E-5 -1.347809625259988E-5 -.001340014689701648 9.077440355661809E-5 -9.994401407947651E-5 .0001877164199070397

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 25.6   .43039 E2020A92 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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