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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04373799573184575 3.0882e-08  
a 2.922318465210652 1.1842e-08 au
q 2.794502112652174 8.9324e-08 au
i 2.403981028480658 3.2686e-06 deg
node 44.7330366107503 7.8743e-05 deg
peri 146.8693593411876 8.8067e-05 deg
M 197.424832138019 4.0905e-05 deg
tp 2459824.527016278369
(2022-Sep-02.02701628)
0.00020877 TDB
period 1824.69272375013
5.00
1.1092e-05
3.037e-08
d
yr
n .1972934923860077 1.1993e-09 deg/d
Q 3.05013481776913 1.236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3038  
   data-arc span      24217 days (66.30 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45328  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:10:30  

Additional Information
 Earth MOID = 1.7939 au 
 Jupiter MOID = 1.9046 au 
 T_jup = 3.277 
[ 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 12.0   n/a MPO448944  
rotation period rot_per 19.748 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.]
[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

[ show close-approach data ]
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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