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16778 (1996 WU1)
Classification: Main-belt Asteroid          SPK-ID: 2016778
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .052069378343397 3.2653e-08  
a 3.083347599118052 1.7076e-08 au
q 2.92279960641537 9.821e-08 au
i 10.41401394413898 3.6302e-06 deg
node 90.33298192347908 2.5026e-05 deg
peri 3.468588892910323 5.167e-05 deg
M 179.5766305391103 4.4945e-05 deg
tp 2458410.040009244594
(2018-Oct-18.54000924)
0.0002454 TDB
period 1977.5713332287
5.41
1.6428e-05
4.498e-08
d
yr
n .1820414737769498 1.5122e-09 deg/d
Q 3.243895591820735 1.7965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      8631 days (23.63 yr)  
   first obs. used      1996-11-30  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50789  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:43:09  

Additional Information
 Earth MOID = 1.93964 au 
 Jupiter MOID = 1.91856 au 
 T_jup = 3.200 
[ 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 13.7   n/a MPO502297  
diameter diameter 6.231 km 0.609 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.168   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16778 (1996 WU1)          Discovered 1996-Nov-30 by Kobayashi, T. at Oizumi
Reference: 20000913/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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