+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1979 Sakharov (2006 P-L) Classification: Main-belt Asteroid          SPK-ID: 2001979 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1010586595814625 3.148e-08   a 2.373461738884257 7.2802e-09 au q 2.133602876984727 7.4809e-08 au i 6.047812090089525 3.9058e-06 deg node 202.6373108234548 3.4565e-05 deg peri 221.0518620557317 4.0191e-05 deg M 120.9169053693002 2.011e-05 deg tp 2458751.903064448235 (2019-Sep-25.40306445) 7.4421e-05 TDB period 1335.585758710937 3.66 6.145e-06 1.682e-08 d yr n .2695446530872417 1.2402e-09 deg/d Q 2.613320600783787 8.0159e-09 au   Orbit Determination Parameters    # obs. used (total)      2248      data-arc span      22032 days (60.32 yr)      first obs. used      1960-09-24      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47372      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:59:33   Additional Information  Earth MOID = 1.14966 au   Jupiter MOID = 2.65824 au   T_jup = 3.529  [ hide covariance matrix ] Orbital Elements at Epoch 2456579.5 (2013-Oct-14.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1003244480509612 3.1399e-08   q 2.135413143646465 7.4518e-08 au tp 2456078.083675910635 (2012-May-30.58367591) 7.5303e-05 TDB node 202.6784273325468 3.4568e-05 deg peri 220.5967983900958 4.0306e-05 deg i 6.046090668954435 3.9069e-06 deg   Orbit Determination Parameters    # obs. used (total)      2248      data-arc span      22032 days (60.32 yr)      first obs. used      1960-09-24      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47372      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:59:33   Additional Information  Jupiter MOID = 2.65824 au   T_jup = 3.529  Orbit Covariance (6×6)   e q tp node peri i e 9.858700591078884E-16 -2.330837343569525E-15 -2.714558181045783E-13 1.638725238736019E-15 -7.886459968295398E-14 -3.995926036833975E-17 q -2.330837343569525E-15 5.552977141568136E-15 6.067416623805151E-13 -4.351006569039687E-15 1.798995175698258E-13 2.765170185318044E-16 tp -2.714558181045783E-13 6.067416623805151E-13 5.670547063234429E-9 -1.14238623209722E-11 1.572925092015699E-9 4.391272570631263E-13 node 1.638725238736019E-15 -4.351006569039687E-15 -1.14238623209722E-11 1.194915535017574E-9 -1.190877417475796E-9 -2.04168617062983E-11 peri -7.886459968295398E-14 1.798995175698258E-13 1.572925092015699E-9 -1.190877417475796E-9 1.624556540357838E-9 2.041988656282635E-11 i -3.995926036833975E-17 2.765170185318044E-16 4.391272570631263E-13 -2.04168617062983E-11 2.041988656282635E-11 1.526351107823334E-11 [ 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 13.68   n/a E2021B10   diameter diameter 4.760 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 7.5209 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm] [Oey, J.; Inasaridze, R.Y.; Kvaratskhelia, O.I.; Ayvazian, V.; et al. (2013) Minor Planet Bull. 40, 169-172.] [Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm] [Oey, J. (2014) Minor Planet Bull. 41, 276-281.] [Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.] geometric albedo albedo 0.394   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   1979 Sakharov           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Named in honor of Academician Andrej Dmitrievich Sakharov, distinguished physicist and mathematician -- and a courageous individual. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC 6207 Last Updated: 2006-03-21 [ show close-approach data ] Alternate Designations  2006 P-L = 1971 SQ3 = 1982 SZ12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-24 18:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin