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190428 (1999 VS159)
Classification: Main-belt Asteroid          SPK-ID: 2190428
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2359594788901855 7.2036e-08  
a 2.795864749841237 1.8214e-08 au
q 2.13615396042126 1.9922e-07 au
i 8.354437421823432 7.9435e-06 deg
node 21.51294049840565 3.3383e-05 deg
peri 329.5452527727413 3.5834e-05 deg
M 210.7581630552686 1.7306e-05 deg
tp 2459908.381805401462
(2022-Nov-24.88180540)
8.6677e-05 TDB
period 1707.546993266372
4.68
1.6686e-05
4.568e-08
d
yr
n .2108287510795558 2.0602e-09 deg/d
Q 3.455575539261214 2.2512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      362  
   data-arc span      7479 days (20.48 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56538  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:37  

Additional Information
 Earth MOID = 1.13425 au 
 Jupiter MOID = 2.00048 au 
 T_jup = 3.271 
[ 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 15.88   n/a E2021B55  
diameter diameter 4.144 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 61.792 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.045   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190428 (1999 VS159)          Discovered 1999-Nov-14 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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