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12688 Baekeland (1988 CK4)
Classification: Main-belt Asteroid          SPK-ID: 2012688
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1575695896550702 3.4641e-08  
a 2.686846687901911 1.268e-08 au
q 2.263481357823122 9.4959e-08 au
i 12.06542713485247 4.0723e-06 deg
node 290.9885988175539 1.8618e-05 deg
peri 346.7621620039768 2.4923e-05 deg
M 9.977606525743234 1.4781e-05 deg
tp 2458955.915219936087
(2020-Apr-16.41521994)
6.6198e-05 TDB
period 1608.654418431591
4.40
1.1387e-05
3.118e-08
d
yr
n .2237895199088152 1.5841e-09 deg/d
Q 3.110212017980699 1.4677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1817  
   data-arc span      24226 days (66.33 yr)  
   first obs. used      1954-07-04  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44325  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:51:19  

Additional Information
 Earth MOID = 1.2487 au 
 Jupiter MOID = 2.05842 au 
 T_jup = 3.324 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457385.5 (2015-Dec-29.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1562544952700417 3.4691e-08  
q 2.266305852915162 9.4899e-08 au
tp 2457348.574315476210
(2015-Nov-22.07431548)
7.2881e-05 TDB
node 291.0128491985506 1.8628e-05 deg
peri 346.8781370584553 2.5022e-05 deg
i 12.06136256282698 4.0706e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1817  
   data-arc span      24226 days (66.33 yr)  
   first obs. used      1954-07-04  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44325  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:51:19  

Additional Information
 Jupiter MOID = 2.05842 au 
 T_jup = 3.324 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.203498354422108E-15 -3.271475321732137E-15 8.309350310688096E-13 9.768609659465996E-15 1.529780090580174E-13 -1.066775052317556E-15
q -3.271475321732137E-15 9.005896109637061E-15 -2.692723826089324E-12 -2.923173319720004E-14 -5.136817510731958E-13 3.541653456746034E-15
tp 8.309350310688096E-13 -2.692723826089324E-12 5.311648434356014E-9 1.568684643271293E-11 1.231889361696282E-9 -6.945447955354595E-12
node 9.768609659465996E-15 -2.923173319720004E-14 1.568684643271293E-11 3.470201865073163E-10 -3.357878266171643E-10 2.667312741550462E-11
peri 1.529780090580174E-13 -5.136817510731958E-13 1.231889361696282E-9 -3.357878266171643E-10 6.260804827106315E-10 -2.778724788284588E-11
i -1.066775052317556E-15 3.541653456746034E-15 -6.945447955354595E-12 2.667312741550462E-11 -2.778724788284588E-11 1.657018689510713E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO395125  
diameter diameter 5.264 km 0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.305   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12688 Baekeland           Discovered 1988 Feb. 13 by E. W. Elst at the European Southern Observatory.
Leo Hendrik Baekeland (1863-1944) was a Flemish chemist and inventor who in 1890 discovered a new kind of photographic paper. His most renowned discovery is surely Bakelite, an electrically insulating substance from which he developed the first fully synthetic plastic in 1909.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

[ show close-approach data ]
Alternate Designations
 1988 CK4 = 1989 NW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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