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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2093103677912077 4.9184e-08  
a 2.45380871977623 1.151e-08 au
q 1.940201114150595 1.1776e-07 au
i 11.93544583882571 4.6305e-06 deg
node 251.3427448127097 1.9645e-05 deg
peri 317.9414208860619 2.1364e-05 deg
M 224.4372580364491 1.1474e-05 deg
tp 2459529.185414025952
(2021-Nov-10.68541403)
4.7099e-05 TDB
period 1403.97535703812
3.84
9.878e-06
2.704e-08
d
yr
n .2564147569936482 1.8041e-09 deg/d
Q 2.967416325401865 1.3919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1515  
   data-arc span      23813 days (65.20 yr)  
   first obs. used      1954-11-23  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49755  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:31:08  

Additional Information
 Earth MOID = .950289 au 
 Jupiter MOID = 2.08262 au 
 T_jup = 3.435 
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Orbital Elements at Epoch 2456494.5 (2013-Jul-21.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090509993538648 4.9257e-08  
q 1.94096736221889 1.1775e-07 au
tp 2456721.482056103495
(2014-Mar-04.98205610)
3.7269e-05 TDB
node 251.3722374531604 1.9654e-05 deg
peri 317.9153984287444 2.1369e-05 deg
i 11.93173384193181 4.6297e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1515  
   data-arc span      23813 days (65.20 yr)  
   first obs. used      1954-11-23  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49755  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:31:08  

Additional Information
 Jupiter MOID = 2.08262 au 
 T_jup = 3.435 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.426284678838274E-15 -5.784692121648445E-15 5.69434050529083E-13 1.711782577382189E-14 7.187021143642168E-14 8.242691883882199E-16
q -5.784692121648445E-15 1.386507813897233E-14 -1.293764494682327E-12 -4.31293435233659E-14 -1.594023236660413E-13 -1.994641273150262E-15
tp 5.69434050529083E-13 -1.293764494682327E-12 1.38897086772085E-9 1.649851340510582E-12 3.269492549333833E-10 -5.147694069741556E-13
node 1.711782577382189E-14 -4.31293435233659E-14 1.649851340510582E-12 3.862716215413282E-10 -3.772329083630814E-10 -2.3564354175379E-11
peri 7.187021143642168E-14 -1.594023236660413E-13 3.269492549333833E-10 -3.772329083630814E-10 4.566386700033944E-10 2.283109766407366E-11
i 8.242691883882199E-16 -1.994641273150262E-15 -5.147694069741556E-13 -2.3564354175379E-11 2.283109766407366E-11 2.143400176449794E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO452396  
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. 2019-August); 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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