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5469 (1988 BK4)
Classification: Main-belt Asteroid          SPK-ID: 2005469
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451207639525543 7.1516e-08  
a 3.121184997793367 4.0321e-08 AU
q 2.668236246476342 2.352e-07 AU
i 19.20469032951546 9.4679e-06 deg
node 143.8199451259632 2.2515e-05 deg
peri 291.67562815 4.0573e-05 deg
M 322.1679046975701 3.6973e-05 deg
tp 2457012.158438252572
(2014-Dec-20.65843825)
0.0002088 JED
period 2014.08452695539
5.51
3.9028e-05
1.069e-07
d
yr
n .1787412569740543 3.4636e-09 deg/d
Q 3.574133749110392 4.6172e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      13379 days (36.63 yr)  
   first obs. used      1977-02-18  
   last obs. used      2013-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56867  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:12:33  

Additional Information
 Earth MOID = 1.7499 AU 
 T_jup = 3.114 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a MPO267729  
diameter diameter 26.9 km n/a DASTCOM value unverified
geometric albedo albedo 0.0268   0.007 EAR-A-5-DDR-ALBEDOS-V1.0:IMPS IMPS quality code 2: from the PDS IMPS singleton file

5469 (1988 BK4)          Discovered 1988-Jan-21 by Debehogne, H. at La Silla (809)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 BK4 = 1977 DK 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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