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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2091519587681944 3.9725e-08  
a 2.454171362134447 9.7817e-09 au
q 1.94087661459122 9.7305e-08 au
i 11.93396282263437 4.4236e-06 deg
node 251.3419109977706 1.7992e-05 deg
peri 317.9136509565882 1.9929e-05 deg
M 275.7335389131872 1.072e-05 deg
tp 2459529.206284555790
(2021-Nov-10.70628456)		 4.2891e-05 TDB
period 1404.2866036367
3.84		 8.3957e-06
2.299e-08		 d
yr
n .2563579251327351 1.5327e-09 deg/d
Q 2.967466109677674 1.1828e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1758  
   data-arc span      24166 days (66.16 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47782  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:26:37  

Additional Information
 Earth MOID = .949969 au 
 Jupiter MOID = 2.08148 au 
 T_jup = 3.434 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456772.5 (2014-Apr-25.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090726898021333 3.9771e-08  
q 1.940769921767822 9.7384e-08 au
tp 2456721.617036610230
(2014-Mar-05.11703661)		 3.618e-05 TDB
node 251.3700215340104 1.8e-05 deg
peri 317.9718521184735 1.9931e-05 deg
i 11.93140182108965 4.4232e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1758  
   data-arc span      24166 days (66.16 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47782  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:26:37  

Additional Information
 Jupiter MOID = 2.08148 au 
 T_jup = 3.434 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.581764488105847E-15 -3.860906428190446E-15 3.107023307084786E-13 1.204108586017353E-14 5.732209873677313E-14 9.039985878109819E-16
q -3.860906428190446E-15 9.483648474296446E-15 -7.066338078593976E-13 -3.119290569407832E-14 -1.271479240730435E-13 -2.190037706025982E-15
tp 3.107023307084786E-13 -7.066338078593976E-13 1.308999039613845E-9 -2.476150757559635E-13 3.225935923185356E-10 -3.18849540437377E-13
node 1.204108586017353E-14 -3.119290569407832E-14 -2.476150757559635E-13 3.239971454148758E-10 -3.166793568803801E-10 -1.309326672033647E-11
peri 5.732209873677313E-14 -1.271479240730435E-13 3.225935923185356E-10 -3.166793568803801E-10 3.972301294721388E-10 1.266341015537437E-11
i 9.039985878109819E-16 -2.190037706025982E-15 -3.18849540437377E-13 -1.309326672033647E-11 1.266341015537437E-11 1.95645209270825E-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 13.74   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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