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1968 Mehltretter (1932 BK)
Classification: Main-belt Asteroid          SPK-ID: 2001968
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1120798105467907 3.4868e-08  
a 2.740533667646529 1.0661e-08 au
q 2.433375173379604 9.6377e-08 au
i 4.595221882667844 3.9104e-06 deg
node 71.49986377706554 4.8886e-05 deg
peri 164.8464576158681 5.21e-05 deg
M 4.747946620311092 1.7782e-05 deg
tp 2458578.644816037606
(2019-Apr-05.14481604)
8.1874e-05 TDB
period 1657.109242299435
4.54
9.6691e-06
2.647e-08
d
yr
n .2172457861018611 1.2676e-09 deg/d
Q 3.047692161913453 1.1855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2614  
   data-arc span      32044 days (87.73 yr)  
   first obs. used      1932-01-29  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45915  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:10:37  

Additional Information
 Earth MOID = 1.4218 au 
 Jupiter MOID = 1.94972 au 
 T_jup = 3.336 
[ show covariance matrix ]

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 11.7   n/a MPO347533  
diameter diameter 13.154 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.2038 h n/a LCDB (Rev. 2019-January); 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:
[Brincat, S.M.; Baldies, C. (2018) Minor Planet Bull. 45, 244-245.]
geometric albedo albedo 0.178   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1968 Mehltretter (1932 BK)          Discovered 1932-Jan-29 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1932 BK = 1946 FA = 1950 BB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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