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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1273821184511666 4.745e-08  
a 2.617597831475811 1.0966e-08 au
q 2.284162674449242 1.2444e-07 au
i 11.57577229309514 6.1399e-06 deg
node 221.7032393811036 1.8375e-05 deg
peri 220.5422341977542 2.8165e-05 deg
M 10.13110479968541 1.9507e-05 deg
tp 2458556.968150676616
(2019-Mar-14.46815068)
8.3833e-05 TDB
period 1546.866414500497
4.24
9.7202e-06
2.661e-08
d
yr
n .2327285644224479 1.4624e-09 deg/d
Q 2.951032988502379 1.2363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1768  
   data-arc span      10424 days (28.54 yr)  
   first obs. used      1991-05-12  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:08:52  

Additional Information
 Earth MOID = 1.31156 au 
 Jupiter MOID = 2.37249 au 
 T_jup = 3.366 
[ 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 13.2   n/a MPO365582  
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-January); 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

[ show close-approach data ]
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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