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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457113.5 (2015-Apr-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09251111653650787 5.1204e-08  
q 2.052929096076191 1.1546e-07 au
tp 2456769.174924046908
(2014-Apr-21.67492405)
0.00010266 TDB
node 96.72941431473333 4.9905e-05 deg
peri 47.84204679212571 5.8508e-05 deg
i 6.088639642989826 4.486e-06 deg
  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
 Jupiter MOID = 2.53807 au 
 T_jup = 3.606 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.621886784877546E-15 -5.886404289061296E-15 9.316767522440722E-13 -1.454473857453947E-14 3.821897771449241E-13 2.396588103590902E-15
q -5.886404289061296E-15 1.332997322613364E-14 -1.530965089206883E-12 3.174813467060455E-14 -6.907240247079158E-13 -4.880625407817742E-15
tp 9.316767522440722E-13 -1.530965089206883E-12 1.053871521779897E-8 -2.028823378166454E-11 3.155892084244392E-9 4.527191546648323E-12
node -1.454473857453947E-14 3.174813467060455E-14 -2.028823378166454E-11 2.4905011402478E-9 -2.482581333393007E-9 1.684812216901064E-11
peri 3.821897771449241E-13 -6.907240247079158E-13 3.155892084244392E-9 -2.482581333393007E-9 3.423227941857906E-9 -1.531538251227215E-11
i 2.396588103590902E-15 -4.880625407817742E-15 4.527191546648323E-12 1.684812216901064E-11 -1.531538251227215E-11 2.012423157865163E-11

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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