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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451734013447217 7.1145e-08  
a 3.121240262078764 3.1097e-08 AU
q 2.668119196818699 2.3142e-07 AU
i 19.20475799711976 7.5604e-06 deg
node 143.8198775070134 2.2219e-05 deg
peri 291.7161091400832 3.4677e-05 deg
M 357.8871557087864 2.4922e-05 deg
tp 2457012.321000046973
(2014-Dec-20.82100005)
0.00013944 JED
period 2014.138019828238
5.51
3.0101e-05
8.241e-08
d
yr
n .1787365098399265 2.6712e-09 deg/d
Q 3.574361327338829 3.5612e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      737  
   data-arc span      13881 days (38.00 yr)  
   first obs. used      1977-02-18  
   last obs. used      2015-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52748  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:58:59  

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
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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