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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .127263191759394 4.0672e-08  
a 2.616798179421797 1.0121e-08 au
q 2.283776090918407 1.0438e-07 au
i 11.57612790024375 5.2088e-06 deg
node 221.6962462906384 1.7036e-05 deg
peri 220.417533691993 2.744e-05 deg
M 103.3740172083925 1.9396e-05 deg
tp 2458556.520760210413
(2019-Mar-14.02076021)
8.3492e-05 TDB
period 1546.15763845226
4.23
8.9701e-06
2.456e-08
d
yr
n .2328352498134462 1.3508e-09 deg/d
Q 2.949820267925186 1.1409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2028  
   data-arc span      10578 days (28.96 yr)  
   first obs. used      1991-05-12  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45663  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:24:06  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1938-Mar-16 10:01 00:01 Amphi 0.0108089750973162 0.0107975443466038 0.0108204127706308 5.81948843931917 5.81948834792811 2428973.917133514 1.05736552672082 715.287506244605 35.1913368517665 37.2135900030995 27837.8690369813 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:24:19 2020-May-20 06:24
2010-Jan-19 11:22 < 00:01 Thisb 0.0471292754619757 0.047127963265901 0.0471305876666675 5.55287765299029 5.5528776269368 2455215.973807513 0.392177889502117 77.8232782396442 43.010118761083 40.5442809187134 126823.194613294 T 30 CATAB v2.0f-lin.ifort 2020-May-20 06:24:19 2020-May-20 06:24

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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