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15938 Bohnenblust (1997 YA8)
Classification: Main-belt Asteroid          SPK-ID: 2015938
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .209061965346184 2.4712e-08  
a 2.454122368375423 9.4113e-09 au
q 1.941058722842825 6.0402e-08 au
i 11.93317121399616 6.1612e-07 deg
node 251.3362783278974 5.4609e-06 deg
peri 317.9108195350864 4.7801e-06 deg
M 325.9782224233476 7.0146e-06 deg
tp 2459529.208043940434
(2021-Nov-10.70804394)
2.7927e-05 TDB
period 1404.244552211232
3.84
8.0777e-06
2.212e-08
d
yr
n .2563656020122109 1.4747e-09 deg/d
Q 2.967186013908021 1.1379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1876  
   data-arc span      24268 days (66.44 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46819  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:31:46  

Additional Information
 Earth MOID = .951741 au 
 Jupiter MOID = 2.08061 au 
 T_jup = 3.434 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.75   n/a MPCxxxxx  
diameter diameter 4.782 km 0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.906 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Albers, K.; Kragh, K.; Monnier, A.; Pligge, Z.; et al. (2010) Minor Planet Bull. 37, 152-158.]
geometric albedo albedo 0.310   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

15938 Bohnenblust           Discovered 1997 Dec. 27 by P. G. Comba at Prescott.
H. Frederic Bohnenblust (1906-2000) was a Swiss-American mathematician who held professorships at Princeton and later at Caltech, where he became dean of graduate studies. A great teacher and a strong advocate of mathematical education, he was the discoverer's thesis adviser.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1997 YA8 = 1991 LQ1 = 1991 NH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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