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173321 (1999 VQ95)
Classification: Main-belt Asteroid          SPK-ID: 2173321
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1843917299157599 4.6634e-08  
a 2.377511111279013 1.2868e-08 au
q 1.939117724576336 1.1573e-07 au
i 2.519593252153654 4.4666e-06 deg
node 52.93668867660889 0.00010243 deg
peri 320.8267730405241 0.00010316 deg
M 232.3922706329047 1.5328e-05 deg
tp 2459475.131699142904
(2021-Sep-17.63169914)
5.9773e-05 TDB
period 1339.005188313499
3.67
1.0871e-05
2.976e-08
d
yr
n .2688563144803243 2.1828e-09 deg/d
Q 2.815904497981691 1.5241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      560  
   data-arc span      7540 days (20.64 yr)  
   first obs. used      1999-11-02  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:22:37  

Additional Information
 Earth MOID = .940656 au 
 Jupiter MOID = 2.64712 au 
 T_jup = 3.516 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO352059  
diameter diameter 3.113 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173321 (1999 VQ95)          Discovered 1999-Nov-09 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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Alternate Designations
 1999 VQ95 = 2006 OT11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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