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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1470480747789034 5.5027e-08  
a 3.124122817429257 2.7116e-08 au
q 2.664726571753441 1.7344e-07 au
i 19.18884065056922 7.0404e-06 deg
node 143.7908414317733 1.8766e-05 deg
peri 291.8007456294754 3.0845e-05 deg
M 104.8258674866396 2.3706e-05 deg
tp 2457013.204680939391
(2014-Dec-21.70468094)
0.00013215 JED
period 2016.928835707145
5.52
2.626e-05
7.19e-08
d
yr
n .1784891928890403 2.3239e-09 deg/d
Q 3.583519063105072 3.1104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      14297 days (39.14 yr)  
   first obs. used      1977-02-18  
   last obs. used      2016-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51664  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:52:14  

Additional Information
 Earth MOID = 1.74534 au 
 Jupiter MOID = 1.78063 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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