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173330 (1999 VA187)
Classification: Main-belt Asteroid          SPK-ID: 2173330
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 .1964542777323371 1.0411e-07  
a 2.59064864859515 1.4305e-08 au
q 2.081704639477135 2.6138e-07 au
i 11.19061508776702 7.793e-06 deg
node 215.256256161395 2.9406e-05 deg
peri 162.8593993516609 3.4559e-05 deg
M 88.00633213151808 2.0229e-05 deg
tp 2459024.174636427762
(2020-Jun-23.67463643)
8.3757e-05 TDB
period 1523.039622713721
4.17
1.2615e-05
3.454e-08
d
yr
n .2363694250833471 1.9577e-09 deg/d
Q 3.099592657713165 1.7115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      357  
   data-arc span      7790 days (21.33 yr)  
   first obs. used      1999-10-10  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55374  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:25:45  

Additional Information
 Earth MOID = 1.0865 au 
 Jupiter MOID = 2.37393 au 
 T_jup = 3.366 
[ 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 16.50   n/a MPCxxxxx  

173330 (1999 VA187)          Discovered 1999-Nov-15 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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