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20166 (1996 VQ4)
Classification: Main-belt Asteroid          SPK-ID: 2020166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835684599061259 3.6094e-08  
a 2.401453999475779 9.4759e-09 au
q 1.960622787256604 8.7216e-08 au
i 11.66919053544442 3.8373e-06 deg
node 230.9509704039286 2.2397e-05 deg
peri 61.02916405747573 2.5484e-05 deg
M 272.1203455806759 1.2638e-05 deg
tp 2459532.314740033519
(2021-Nov-13.81474003)
4.8571e-05 TDB
period 1359.282841988509
3.72
8.0454e-06
2.203e-08
d
yr
n .2648455412512619 1.5676e-09 deg/d
Q 2.842285211694954 1.1215e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1381  
   data-arc span      23874 days (65.36 yr)  
   first obs. used      1955-10-25  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49845  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:14:27  

Additional Information
 Earth MOID = .972609 au 
 Jupiter MOID = 2.36817 au 
 T_jup = 3.475 
[ 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 14.67   n/a E2021B10  
diameter diameter 4.707 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20166 (1996 VQ4)          Discovered 1996-Nov-13 by Kobayashi, T. at Oizumi
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 VQ4 = 1988 RZ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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