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213055 (1999 AL30)
Classification: Main-belt Asteroid          SPK-ID: 2213055
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02895020993043634 5.675e-08  
a 2.757625430211972 1.7469e-08 au
q 2.677791595097826 1.5524e-07 au
i 6.450613740136741 3.6615e-06 deg
node 125.5816347736195 5.37e-05 deg
peri 245.4830159411433 8.8443e-05 deg
M 28.73525391712133 6.862e-05 deg
tp 2459066.989974675521
(2020-Aug-05.48997468)
0.00031908 TDB
period 1672.635615312059
4.58
1.5893e-05
4.351e-08
d
yr
n .2152291848292587 2.0451e-09 deg/d
Q 2.837459265326118 1.7974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      8077 days (22.11 yr)  
   first obs. used      1998-12-22  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56567  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:09  

Additional Information
 Earth MOID = 1.68031 au 
 Jupiter MOID = 2.29359 au 
 T_jup = 3.333 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.93   n/a E2021B55  

213055 (1999 AL30)          Discovered 1999-Jan-14 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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