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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04389224261211724 3.4343e-08  
a 2.922236920083232 1.3119e-08 au
q 2.793973388216853 9.7491e-08 au
i 2.404082467924176 3.3127e-06 deg
node 44.73354383834477 8.947e-05 deg
peri 147.1765975045285 9.8231e-05 deg
M 118.1662799233297 4.1472e-05 deg
tp 2458001.588538119815
(2017-Sep-05.08853812)
0.00020962 TDB
period 1824.616349239057
5.00
1.2287e-05
3.364e-08
d
yr
n .197301750666728 1.3286e-09 deg/d
Q 3.050500451949612 1.3695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2728  
   data-arc span      23872 days (65.36 yr)  
   first obs. used      1954-07-29  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46855  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:26:18  

Additional Information
 Earth MOID = 1.79361 au 
 Jupiter MOID = 1.90545 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. 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:
[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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