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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 ]

[ show orbit diagram ]
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1940-May-01 04:19 00:01 Jupiter 1.91694487977581 1.91694454132262 1.9169452182291 3.11454660802718 2.96928935405938 2429750.679773653 1.37250862197561 64.7167431661423 9.92146633776844 84.726054666326 4488668.62454328 T 37 CATAB v2.0f-lin.ifort 2020-Dec-18 02:10:38 2020-Dec-18 02:10
1974-Nov-01 09:24 < 00:01 Jupiter 1.94626998359802 1.94626969673516 1.94627027046088 3.19478892678132 3.0555311006592 2442352.891755916 0.748421113142876 47.5216028140172 9.37570981804262 -86.7341759730546 4649873.59233739 T 37 CATAB v2.0f-lin.ifort 2020-Dec-18 02:10:38 2020-Dec-18 02:10
2035-Jun-20 03:03 < 00:01 Jupiter 1.93249373765988 1.93249347245577 1.93249400286389 3.15960866298372 3.01770045323436 2464498.626960590 0.388689658947944 34.8250668739203 8.25316518673178 -85.4776117647737 4813472.47223244 T 37 CATAB v2.0f-lin.ifort 2020-Dec-18 02:10:38 2020-Dec-18 02:10
2069-Dec-18 17:04 00:01 Jupiter 1.92765729746547 1.92765695747287 1.92765763745818 3.14629461892485 3.00339134284288 2477099.210908944 1.00555838277029 59.7263241985449 9.4186996165783 -83.0212622623637 4545698.57632215 T 37 CATAB v2.0f-lin.ifort 2020-Dec-18 02:10:38 2020-Dec-18 02:10
2130-Aug-08 07:21 00:02 Jupiter 1.94358127351419 1.94358089779851 1.94358164923021 3.19017738528039 3.05051170598618 2499245.806492592 2.11452415204589 68.3248740515772 10.9360218069714 82.1334775746212 4744977.50977168 T 37 CATAB v2.0f-lin.ifort 2020-Dec-18 02:10:38 2020-Dec-18 02:10
2165-Feb-06 12:19 00:03 Jupiter 1.92295955544713 1.92295913639979 1.92295997449687 3.13126362939489 2.98728216519371 2511847.013047870 2.74052192376938 146.867869124281 8.83372718075334 -85.2437094271211 4589367.13467076 T 37 CATAB v2.0f-lin.ifort 2020-Dec-18 02:10:38 2020-Dec-18 02:10

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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