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15798 (1993 VZ4)
Classification: Main-belt Asteroid          SPK-ID: 2015798
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962931535504419 3.9984e-08  
a 2.423572826207429 6.7753e-09 au
q 1.947842073292015 9.8512e-08 au
i 1.736710795037513 3.9314e-06 deg
node 29.50362192527964 0.00013745 deg
peri 348.0419498994859 0.00013783 deg
M 42.28498913479498 1.0115e-05 deg
tp 2458838.630039378957
(2019-Dec-21.13003938)
3.8628e-05 TDB
period 1378.105730092869
3.77
5.7789e-06
1.582e-08
d
yr
n .2612281424704185 1.0954e-09 deg/d
Q 2.899303579122842 8.1053e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1770  
   data-arc span      11075 days (30.32 yr)  
   first obs. used      1989-10-01  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5262  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:28:03  

Additional Information
 Earth MOID = .949664 au 
 Jupiter MOID = 2.56299 au 
 T_jup = 3.485 
[ 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 14.4   n/a MPO347649  
diameter diameter 3.587 km 0.395 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.578 h n/a LCDB (Rev. 2019-August); 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 0.287   0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15798 (1993 VZ4)          Discovered 1993-Nov-14 by Hirasawa, M., Suzuki, S. at Nyukasa
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 VZ4 = 1989 TE14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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