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6546 Kaye (1987 DY4)
Classification: Outer Main-belt Asteroid          SPK-ID: 2006546
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1040584825997496 4.39e-08  
a 3.225272148043381 2.0862e-08 au
q 2.889655222346752 1.4515e-07 au
i 14.41250541206443 3.6799e-06 deg
node 274.7945833892732 1.7953e-05 deg
peri 272.3673023125333 2.5331e-05 deg
M 250.5272355191371 1.9922e-05 deg
tp 2459643.856303955495
(2022-Mar-05.35630396)
0.00011966 TDB
period 2115.670235627109
5.79
2.0527e-05
5.62e-08
d
yr
n .1701588432534203 1.6509e-09 deg/d
Q 3.560889073740009 2.3032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2124  
   data-arc span      15394 days (42.15 yr)  
   first obs. used      1978-09-08  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42978  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:34:55  

Additional Information
 Earth MOID = 1.93748 au 
 Jupiter MOID = 1.74551 au 
 T_jup = 3.130 
[ 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 11.9   n/a MPO458896  
diameter diameter 21.624 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.006 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 0.085   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

6546 Kaye (1987 DY4)          Discovered 1987-Feb-24 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1987 DY4 = 1978 RF2 = 1991 XM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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