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97159 (1999 VP172)
Classification: Main-belt Asteroid          SPK-ID: 2097159
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06865263042165132 4.1693e-08  
a 2.968868775817382 1.8875e-08 au
q 2.765048124980811 1.2353e-07 au
i 11.60116611813924 4.4959e-06 deg
node 67.7487380385072 2.0755e-05 deg
peri 9.425490213982583 5.1674e-05 deg
M 84.92531741056314 4.4106e-05 deg
tp 2458955.722306394428
(2020-Apr-16.22230639)
0.00022908 TDB
period 1868.464841065982
5.12
1.7818e-05
4.878e-08
d
yr
n .1926715408755647 1.8374e-09 deg/d
Q 3.172689426653952 2.017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1204  
   data-arc span      11004 days (30.13 yr)  
   first obs. used      1991-03-20  
   last obs. used      2021-05-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:52:25  

Additional Information
 Earth MOID = 1.7805 au 
 Jupiter MOID = 2.09586 au 
 T_jup = 3.229 
[ 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 14.53   n/a MPCxxxxx  
diameter diameter 4.849 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.143   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97159 (1999 VP172)          Discovered 1999-Nov-14 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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