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100510 (1997 AO18)
Classification: Main-belt Asteroid          SPK-ID: 2100510
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09312377757477516 5.1139e-08  
a 2.262220357130313 1.1803e-08 au
q 2.051553851767781 1.1542e-07 au
i 6.090456768087023 4.4879e-06 deg
node 96.69946526945921 4.9873e-05 deg
peri 47.90299383311307 5.8373e-05 deg
M 286.2307027187137 3.2467e-05 deg
tp 2459255.167738555478
(2021-Feb-09.66773856)
0.00011336 TDB
period 1242.798688055679
3.40
9.7264e-06
2.663e-08
d
yr
n .2896687962900967 2.267e-09 deg/d
Q 2.472886862492845 1.2902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      475  
   data-arc span      8681 days (23.77 yr)  
   first obs. used      1997-01-12  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62382  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:50  

Additional Information
 Earth MOID = 1.06995 au 
 Jupiter MOID = 2.53807 au 
 T_jup = 3.606 
[ 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 16.2   n/a MPO280441  

100510 (1997 AO18)          Discovered 1997-Jan-15 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1997 AO18 = 2003 YG121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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