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66328 (1999 JK58)
Classification: Main-belt Asteroid          SPK-ID: 2066328
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1482056743176977 3.3849e-08  
a 2.284113802605447 9.4728e-09 au
q 1.945595176271946 7.8716e-08 au
i 4.342707004018002 3.7617e-06 deg
node 256.0090057225484 5.8491e-05 deg
peri 35.08712412435423 6.0692e-05 deg
M 355.9495831372225 1.803e-05 deg
tp 2459014.686401789467
(2020-Jun-14.18640179)
6.3187e-05 TDB
period 1260.883710795677
3.45
7.8438e-06
2.148e-08
d
yr
n .2855140382238923 1.7761e-09 deg/d
Q 2.622632428938948 1.0877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      7266 days (19.89 yr)  
   first obs. used      1999-05-10  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:07:03  

Additional Information
 Earth MOID = .931238 au 
 Jupiter MOID = 2.5365 au 
 T_jup = 3.585 
[ 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 15.3   n/a MPO436244  
diameter diameter 1.962 km 0.440 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 32.682 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 0.348   0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66328 (1999 JK58)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JK58 = 2000 UQ79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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