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3131 Mason-Dixon (1982 BM1)
Classification: Main-belt Asteroid          SPK-ID: 2003131
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04373799708008495 3.1539e-08  
a 2.922318465732226 1.2052e-08 au
q 2.794502109210952 9.0849e-08 au
i 2.403980892133101 3.2784e-06 deg
node 44.73304657438444 8.0915e-05 deg
peri 146.8693486465729 9.0079e-05 deg
M 197.4248327082709 4.0998e-05 deg
tp 2459824.527013608603
(2022-Sep-02.02701361)
0.00020918 TDB
period 1824.692724238636
5.00
1.1288e-05
3.09e-08
d
yr
n .1972934923331884 1.2205e-09 deg/d
Q 3.0501348222535 1.2579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2984  
   data-arc span      24199 days (66.25 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45578  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:02:57  

Additional Information
 Earth MOID = 1.7939 au 
 Jupiter MOID = 1.9046 au 
 T_jup = 3.277 
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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 12.0   n/a MPO448944  
rotation period rot_per 19.748 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]

3131 Mason-Dixon (1982 BM1)          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

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Alternate Designations
 1982 BM1 = 1962 CK = 1975 XS2 = 1977 DB3 = 1979 OS16 = 1979 QJ6 = A922 DC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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