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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1462977572070324 7.0297e-08  
a 3.125209409825534 3.0834e-08 au
q 2.667998282365745 2.2903e-07 au
i 19.20059732870932 7.3767e-06 deg
node 143.8173913922515 2.206e-05 deg
peri 291.9309310769538 3.4062e-05 deg
M 69.06282234323345 2.4034e-05 deg
tp 2457013.368122840322
(2014-Dec-21.86812284)
0.00013479 JED
period 2017.981180740712
5.52
2.9865e-05
8.177e-08
d
yr
n .17839611361879 2.6402e-09 deg/d
Q 3.582420537285322 3.5345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      766  
   data-arc span      14182 days (38.83 yr)  
   first obs. used      1977-02-18  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52186  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:56:29  

Additional Information
 Earth MOID = 1.74954 au 
 Jupiter MOID = 1.78024 au 
 T_jup = 3.113 
[ 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 13.2 mag n/a MPO358684  
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
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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