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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04373800224524082 3.4347e-08  
a 2.922318467521514 1.297e-08 au
q 2.794502095827749 9.742e-08 au
i 2.403980846437273 3.2973e-06 deg
node 44.73305103640173 8.9028e-05 deg
peri 146.8693410651042 9.7795e-05 deg
M 197.4248351908844 4.1532e-05 deg
tp 2459824.527001782059
(2022-Sep-02.02700178)
0.00021156 TDB
period 1824.69272591448
5.00
1.2148e-05
3.326e-08
d
yr
n .197293492151989 1.3135e-09 deg/d
Q 3.050134839215279 1.3537e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2780  
   data-arc span      23904 days (65.45 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:54:33  

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. 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

[ 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 1.91694485372278 1.91694447172233 1.91694523572345 3.11454647626107 2.96928921382482 2429750.679719972 1.49150188546745 68.4916348503295 10.702370470005 83.699073655495 4154559.2392283 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 18:55:16 2020-Jan-28 18:55
1974-Nov-01 09:24 < 00:01 Jupiter 1.94626996835066 1.94626966133352 1.94627027536779 3.19478882346346 3.05553099151672 2442352.891714990 0.809289227538771 49.7317730951084 10.2196099059544 -88.2099332218243 4208697.60221289 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 18:55:16 2020-Jan-28 18:55
2035-Jun-20 03:03 < 00:01 Jupiter 1.93249372444409 1.93249344583065 1.93249400305754 3.159608580335 3.01770036570577 2464498.626987216 0.452455992216128 38.0716876367296 8.4523350294768 -84.9599762569462 4625493.26127842 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 18:55:16 2020-Jan-28 18:55
2069-Dec-18 17:04 00:01 Jupiter 1.92765726435531 1.92765685389867 1.92765767481229 3.14629443258471 3.00339114512359 2477099.210964059 1.12628871544413 67.1456641131724 10.402654828613 -81.4351777800445 4187824.57992959 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 18:55:16 2020-Jan-28 18:55
2130-Aug-08 07:22 00:02 Jupiter 1.9435812841465 1.94358089935213 1.94358166894119 3.19017737777036 3.05051169891384 2499245.806597953 2.35892688579634 76.5458002492549 11.1339800340099 82.5166512529329 4667737.45994647 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 18:55:16 2020-Jan-28 18:55
2165-Feb-06 12:19 00:03 Jupiter 1.9229595150917 1.92295901216829 1.92296001801851 3.1312634195522 2.98728194214257 2511847.013187158 3.04295140896208 164.202971815945 9.5776562492648 -84.6709897183567 4276391.66195509 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 18:55:16 2020-Jan-28 18:55

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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