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2929 Harris (1982 BK1)
Classification: Main-belt Asteroid          SPK-ID: 2002929
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06736567510773761 1.3174e-08  
a 3.121727720277605 1.4746e-08 au
q 2.911430424898565 3.9791e-08 au
i 14.89076511144891 1.1097e-06 deg
node 142.7088642149216 4.6276e-06 deg
peri 23.01491289719818 1.9103e-05 deg
M 1.626332459373371 1.7387e-05 deg
tp 2459191.398818247928
(2020-Dec-07.89881825)
9.7292e-05 TDB
period 2014.609873806756
5.52
1.4274e-05
3.908e-08
d
yr
n .1786946468795733 1.2661e-09 deg/d
Q 3.332025015656644 1.5739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2871  
   data-arc span      30349 days (83.09 yr)  
   first obs. used      1938-02-19  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:37:52  

Additional Information
 Earth MOID = 1.92566 au 
 Jupiter MOID = 1.67652 au 
 T_jup = 3.161 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457080.5 (2015-Feb-27.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06980641449240353 1.3047e-08  
q 2.906019391749155 3.9621e-08 au
tp 2457180.263352742153
(2015-Jun-06.76335274)
9.2735e-05 TDB
node 142.7398607180314 4.6252e-06 deg
peri 23.59495595383825 1.8489e-05 deg
i 14.89269225304555 1.1094e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2871  
   data-arc span      30349 days (83.09 yr)  
   first obs. used      1938-02-19  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:37:52  

Additional Information
 Jupiter MOID = 1.67652 au 
 T_jup = 3.161 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.702327437370114E-16 -4.874062666011622E-16 -3.986787340330095E-13 -3.009174341205742E-14 -5.309628421511448E-14 -4.903976047555597E-15
q -4.874062666011622E-16 1.569792263931174E-15 1.260057447277793E-12 9.404912900802942E-14 1.686538317371074E-13 1.537853745477766E-14
tp -3.986787340330095E-13 1.260057447277793E-12 8.599838334477757E-9 3.098757042321708E-11 1.67272575490638E-9 2.692201195286824E-12
node -3.009174341205742E-14 9.404912900802942E-14 3.098757042321708E-11 2.139225597916325E-11 -1.23514940328216E-11 2.11346110038042E-12
peri -5.309628421511448E-14 1.686538317371074E-13 1.67272575490638E-9 -1.23514940328216E-11 3.418362212618506E-10 -1.129241456624446E-12
i -4.903976047555597E-15 1.537853745477766E-14 2.692201195286824E-12 2.11346110038042E-12 -1.129241456624446E-12 1.230684657535428E-12

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 11.82   n/a MPCxxxxx  
diameter diameter 16.176 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.13 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Benishek, V. (2016) Minor Planet Bull. 43, 89-90.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.155   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B T   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)

2929 Harris (1982 BK1)          Discovered 1982-Jan-24 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 BK1 = 1938 DH1 = 1965 AU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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