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

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04279956286923397 5.0553e-08  
a 2.922626424664343 1.9756e-08 au
q 2.797539291258638 1.4729e-07 au
i 2.406604694373403 4.7075e-06 deg
node 44.75187806616791 0.00011894 deg
peri 149.8655941864605 0.00013378 deg
M 238.9420743183447 6.6144e-05 deg
tp 2458014.190095358426
(2017-Sep-17.69009536)
0.00033762 JED
period 1824.981165710754
5.00
1.8504e-05
5.066e-08
d
yr
n .1972623097509036 2.0001e-09 deg/d
Q 3.047713558070049 2.0601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      22423 days (61.39 yr)  
   first obs. used      1954-07-29  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51249  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:46:39  

Additional Information
 Earth MOID = 1.79573 au 
 Jupiter MOID = 1.90858 au 
 T_jup = 3.277 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0 mag n/a MPO347546  
rotation period rot_per 19.748 h n/a LCDB (Rev. 2015-December); 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.]

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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