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100703 (1998 AL3)
Classification: Main-belt Asteroid          SPK-ID: 2100703
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2057055062299178 4.2547e-08  
a 2.805516616624884 2.0025e-08 au
q 2.228406400765616 1.1646e-07 au
i 9.017955504063535 5.1295e-06 deg
node 114.6050111579855 3.3671e-05 deg
peri 328.1623399418572 3.6709e-05 deg
M 298.268458574387 1.589e-05 deg
tp 2459294.821721757237
(2021-Mar-21.32172176)
7.7514e-05 TDB
period 1716.396794664243
4.70
1.8377e-05
5.031e-08
d
yr
n .2097417107274558 2.2456e-09 deg/d
Q 3.382626832484152 2.4144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      484  
   data-arc span      7469 days (20.45 yr)  
   first obs. used      1998-01-05  
   last obs. used      2018-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61217  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:49:56  

Additional Information
 Earth MOID = 1.25021 au 
 Jupiter MOID = 1.8672 au 
 T_jup = 3.274 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO453461  

100703 (1998 AL3)          Discovered 1998-Jan-05 by Sato, N. at Chichibu
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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