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27867 (1995 KF4)
Classification: Main-belt Asteroid          SPK-ID: 2027867
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1272631911431002 4.0258e-08  
a 2.616798179493336 1.005e-08 au
q 2.283776092593559 1.0312e-07 au
i 11.57612736936545 5.1744e-06 deg
node 221.6962433127835 1.6718e-05 deg
peri 220.4175366830118 2.7211e-05 deg
M 103.3740170914382 1.9393e-05 deg
tp 2458556.520760694511
(2019-Mar-14.02076069)
8.3479e-05 TDB
period 1546.157638515664
4.23
8.9075e-06
2.439e-08
d
yr
n .2328352498038982 1.3414e-09 deg/d
Q 2.949820266393113 1.1329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2128  
   data-arc span      10628 days (29.10 yr)  
   first obs. used      1991-05-12  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:36:30  

Additional Information
 Earth MOID = 1.31126 au 
 Jupiter MOID = 2.37357 au 
 T_jup = 3.367 
[ 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 13.3   n/a MPO502366  
diameter diameter 7.082 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 418.940 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 0.222   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

27867 (1995 KF4)          Discovered 1995-May-26 by Spacewatch at Kitt Peak
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 KF4 = 1991 JK4 = 1999 FV31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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