+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2979 Murmansk (1978 TB7) Classification: Main-belt Asteroid          SPK-ID: 2002979 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1585877720121548 3.5587e-08   a 3.119661964434399 1.7346e-08 au q 2.624921724063686 1.0987e-07 au i 11.42341808969834 3.8606e-06 deg node 148.5005066035546 2.0548e-05 deg peri 196.6979527830142 2.4074e-05 deg M 217.9410863335213 1.4467e-05 deg tp 2459794.692391804931 (2022-Aug-03.19239180) 8.4069e-05 TDB period 2012.610498493769 5.51 1.6786e-05 4.596e-08 d yr n .1788721664074707 1.4918e-09 deg/d Q 3.614402204805113 2.0097e-08 au   Orbit Determination Parameters    # obs. used (total)      2245      data-arc span      16153 days (44.22 yr)      first obs. used      1976-04-23      last obs. used      2020-07-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46233      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:04:17   Additional Information  Earth MOID = 1.61923 au   Jupiter MOID = 1.79763 au   T_jup = 3.167  [ 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 12.6   n/a MPO502181   diameter diameter 20.558 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.050   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   2979 Murmansk (1978 TB7)          Discovered 1978-Oct-02 by Zhuravleva, L. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1978 TB7 = 1976 HM = 1982 KM1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-16 08:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin