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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2091519923721122 2.5039e-08  
a 2.454171360188359 9.4499e-09 au
q 1.940876530582388 6.1081e-08 au
i 11.93395501554164 6.1663e-07 deg
node 251.3419039137523 5.4648e-06 deg
peri 317.9136574503951 4.7874e-06 deg
M 275.7335424537924 6.8953e-06 deg
tp 2459529.206270353629
(2021-Nov-10.70627035)
2.8293e-05 TDB
period 1404.286601966361
3.84
8.1109e-06
2.221e-08
d
yr
n .2563579254376619 1.4807e-09 deg/d
Q 2.967466189794331 1.1426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1829  
   data-arc span      24208 days (66.28 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 00:48:18  

Additional Information
 Earth MOID = .949968 au 
 Jupiter MOID = 2.08148 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 13.74   n/a E2021B10  
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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