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434421 (2005 MO18)
Classification: Main-belt Asteroid          SPK-ID: 2434421
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2572516201014765 8.4221e-08  
a 2.313484177874503 1.6293e-08 au
q 1.718336625037155 1.9548e-07 au
i 1.122369597619908 9.2132e-06 deg
node 258.2404401857414 0.00046431 deg
peri 94.63236262207465 0.00046479 deg
M 50.36879074514081 2.3556e-05 deg
tp 2458820.672026153204
(2019-Dec-03.17202615)
8.2951e-05 TDB
period 1285.281413890052
3.52
1.3578e-05
3.717e-08
d
yr
n .2800943016132309 2.9589e-09 deg/d
Q 2.908631730711852 2.0485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      6140 days (16.81 yr)  
   first obs. used      2002-12-31  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:40:11  

Additional Information
 Earth MOID = .713539 au 
 Jupiter MOID = 2.53528 au 
 T_jup = 3.538 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456659.5 (2014-Jan-02.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2576979691806107 8.4114e-08  
q 1.717666463100917 1.9551e-07 au
tp 2456251.258195969193
(2012-Nov-19.75819597)
7.0076e-05 TDB
node 258.3556428550592 0.00046473 deg
peri 94.70786171153561 0.00046521 deg
i 1.121270904222306 9.213e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      6140 days (16.81 yr)  
   first obs. used      2002-12-31  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:40:11  

Additional Information
 Jupiter MOID = 2.53528 au 
 T_jup = 3.538 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.075181564393949E-15 -1.641384950628828E-14 -2.062855115853452E-12 1.59475032229979E-13 -4.942397055178728E-13 -3.360857202916264E-15
q -1.641384950628828E-14 3.822466754465915E-14 5.018591075577455E-12 -3.778985433515413E-13 1.217831804000079E-12 8.29552313987139E-15
tp -2.062855115853452E-12 5.018591075577455E-12 4.910702456733221E-9 -1.047798571716343E-10 1.539096257145995E-9 5.669444009187813E-12
node 1.59475032229979E-13 -3.778985433515413E-13 -1.047798571716343E-10 2.159755309014602E-7 -2.159588697155577E-7 8.829286246662141E-10
peri -4.942397055178728E-13 1.217831804000079E-12 1.539096257145995E-9 -2.159588697155577E-7 2.164160845308792E-7 -8.812493985529913E-10
i -3.360857202916264E-15 8.29552313987139E-15 5.669444009187813E-12 8.829286246662141E-10 -8.812493985529913E-10 8.487856776231169E-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 17.9   n/a MPO495162  

434421 (2005 MO18)          Discovered 2005-Jun-28 by NEAT at Palomar
Reference: Last Updated: 2015-06-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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