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218998 Navi (2008 JZ2)
Classification: Main-belt Asteroid          SPK-ID: 2218998
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1224732765248776 7.0986e-08  
a 2.55252375301343 1.4679e-08 au
q 2.239907805574298 1.8524e-07 au
i 8.837816058347508 6.3595e-06 deg
node 185.2462809384189 2.33e-05 deg
peri 23.89691557150233 2.9063e-05 deg
M 101.4772847971293 1.4879e-05 deg
tp 2458976.625545338433
(2020-May-07.12554534)
6.1276e-05 TDB
period 1489.543240936615
4.08
1.2849e-05
3.518e-08
d
yr
n .2416848266678276 2.0848e-09 deg/d
Q 2.865139700452562 1.6477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      7187 days (19.68 yr)  
   first obs. used      2001-10-16  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52204  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:36:22  

Additional Information
 Earth MOID = 1.2395 au 
 Jupiter MOID = 2.09487 au 
 T_jup = 3.412 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457343.5 (2015-Nov-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226820906459781 7.0925e-08  
q 2.238461239286949 1.8519e-07 au
tp 2457485.870404005893
(2016-Apr-07.37040401)
6.1184e-05 TDB
node 185.3195612970732 2.3322e-05 deg
peri 23.15609135226605 2.897e-05 deg
i 8.833337382745588 6.358e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      7187 days (19.68 yr)  
   first obs. used      2001-10-16  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52204  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:36:22  

Additional Information
 Jupiter MOID = 2.09487 au 
 T_jup = 3.412 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.030289572382165E-15 -1.31061654119824E-14 -1.293674736784305E-12 6.955780132105506E-14 -5.119592051477022E-13 -6.199179736149601E-15
q -1.31061654119824E-14 3.429689511128531E-14 3.193233428824238E-12 -1.83028496564147E-13 1.286104925078163E-12 1.636338850734459E-14
tp -1.293674736784305E-12 3.193233428824238E-12 3.743447630471666E-9 -1.763827599842552E-11 1.0536805225518E-9 1.859552267794362E-12
node 6.955780132105506E-14 -1.83028496564147E-13 -1.763827599842552E-11 5.439254825855712E-10 -5.430917459194334E-10 5.623566413305168E-11
peri -5.119592051477022E-13 1.286104925078163E-12 1.0536805225518E-9 -5.430917459194334E-10 8.392772307474059E-10 -5.496622294741059E-11
i -6.199179736149601E-15 1.636338850734459E-14 1.859552267794362E-12 5.623566413305168E-11 -5.496622294741059E-11 4.04237257505263E-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 16.62   n/a E2021B55  

218998 Navi           Discovered 2008 May 3 by P. Kocher at Observatoire Naef.
Navi Kocher (b. 2009) is the grandchild of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091202/MPCPages.arcLast Updated: 2010-04-12

Alternate Designations
 2008 JZ2 = 2001 UN224 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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