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66009 (1998 QZ8)
Classification: Main-belt Asteroid          SPK-ID: 2066009
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03929271751665552 3.0667e-08  
a 2.681775712867377 1.2472e-08 au
q 2.576401457338652 8.0767e-08 au
i 9.062684581312844 4.3686e-06 deg
node 327.0786986368282 2.037e-05 deg
peri 295.8737882326275 6.5786e-05 deg
M 78.53286248682292 6.0621e-05 deg
tp 2458850.570115296580
(2020-Jan-02.07011530)
0.00027102 TDB
period 1604.102467478103
4.39
1.119e-05
3.064e-08
d
yr
n .2244245659480691 1.5656e-09 deg/d
Q 2.787149968396102 1.2962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1555  
   data-arc span      8202 days (22.46 yr)  
   first obs. used      1998-07-31  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50571  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:18:33  

Additional Information
 Earth MOID = 1.5733 au 
 Jupiter MOID = 2.29404 au 
 T_jup = 3.357 
[ 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 14.02   n/a E2021B10  
diameter diameter 4.956 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 25.1047 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 0.165   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66009 (1998 QZ8)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QZ8 = 2000 BA28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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