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16838 (1997 WT39)
Classification: Main-belt Asteroid          SPK-ID: 2016838
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .182804010591838 3.1407e-08  
a 3.060226746200113 1.4805e-08 au
q 2.500805023674322 9.494e-08 au
i 6.624055118599859 3.5363e-06 deg
node 98.05195632130722 3.6001e-05 deg
peri 342.6131749465815 3.7845e-05 deg
M 96.37129581633852 1.1516e-05 deg
tp 2458677.051409760319
(2019-Jul-12.55140976)
6.191e-05 TDB
period 1955.369499704674
5.35
1.4189e-05
3.885e-08
d
yr
n .1841084255709072 1.336e-09 deg/d
Q 3.619648468725905 1.7511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2014  
   data-arc span      12527 days (34.30 yr)  
   first obs. used      1986-11-27  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:43:56  

Additional Information
 Earth MOID = 1.51723 au 
 Jupiter MOID = 1.63185 au 
 T_jup = 3.198 
[ 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 13.49   n/a E2021B10  
diameter diameter 9.498 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.84912 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.085   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16838 (1997 WT39)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 WT39 = 1986 WY2 = 2000 KK6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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