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20163 (1996 UG)
Classification: Main-belt Asteroid          SPK-ID: 2020163
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835971148335464 4.7996e-08  
a 2.315175225554312 6.7306e-09 au
q 1.890115733808435 1.1257e-07 au
i 8.154946489681645 4.6762e-06 deg
node 37.9556395705573 2.4166e-05 deg
peri 346.013522117634 2.5963e-05 deg
M 318.4423808428493 9.2466e-06 deg
tp 2459349.032805660636
(2021-May-14.53280566)
3.3311e-05 TDB
period 1286.690891401279
3.52
5.6109e-06
1.536e-08
d
yr
n .2797874784113376 1.2201e-09 deg/d
Q 2.740234717300189 7.9663e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1557  
   data-arc span      11243 days (30.78 yr)  
   first obs. used      1989-11-04  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47816  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:14:25  

Additional Information
 Earth MOID = .894107 au 
 Jupiter MOID = 2.71364 au 
 T_jup = 3.546 
[ 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 14.72   n/a E2021B10  
diameter diameter 3.061 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.08 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:
[Stephens, R.D.; French, L.M.; James, D.; Rohl, D.; Warner, B.D. (2017) Minor Planet Bull. 44, 42-49.]
geometric albedo albedo 0.272   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20163 (1996 UG)          Discovered 1996-Oct-16 by Kobayashi, T. at Oizumi
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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