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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451734013522744 7.1164e-08  
a 3.12124026202068 3.1254e-08 AU
q 2.668119196745474 2.3155e-07 AU
i 19.20475887169235 7.6242e-06 deg
node 143.8198791147966 2.2271e-05 deg
peri 291.7161074428427 3.4792e-05 deg
M 357.8871559402283 2.5146e-05 deg
tp 2457012.320998751766
(2014-Dec-20.82099875)
0.00014069 JED
period 2014.138019772016
5.51
3.0252e-05
8.283e-08
d
yr
n .1787365098449157 2.6846e-09 deg/d
Q 3.574361327295887 3.5791e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      708  
   data-arc span      13853 days (37.93 yr)  
   first obs. used      1977-02-18  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53346  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:13:26  

Additional Information
 Earth MOID = 1.75006 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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