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35646 (1998 KO66)
Classification: Main-belt Asteroid          SPK-ID: 2035646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028851677392578 4.4449e-08  
a 3.09621547416978 2.0372e-08 au
q 2.777660825752936 1.3271e-07 au
i 4.576243009979454 4.3189e-06 deg
node 244.307954469204 6.0923e-05 deg
peri 287.8601714256353 6.4671e-05 deg
M 142.4289681847224 2.0924e-05 deg
tp 2458609.198607807276
(2019-May-05.69860781)
0.00011778 TDB
period 1989.963873232514
5.45
1.964e-05
5.377e-08
d
yr
n .1809078068413438 1.7855e-09 deg/d
Q 3.414770122586624 2.2468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1012  
   data-arc span      11104 days (30.40 yr)  
   first obs. used      1990-12-19  
   last obs. used      2021-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54018  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:27:44  

Additional Information
 Earth MOID = 1.78811 au 
 Jupiter MOID = 1.59436 au 
 T_jup = 3.210 
[ 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 14.31   n/a MPCxxxxx  
diameter diameter 7.249 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.95211 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 0.077   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35646 (1998 KO66)          Discovered 1998-May-18 by LONEOS at Anderson Mesa
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KO66 = 1995 UN61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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