+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   8444 Popovich (1969 TR1) Classification: Mars-crossing Asteroid          SPK-ID: 2008444 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .269416745361044 3.0632e-08   a 2.267565401368333 4.191e-09 au q 1.656645311038367 7.042e-08 au i 1.940023298282245 3.3274e-06 deg node 353.0298699997341 8.023e-05 deg peri 347.0172173389639 8.0385e-05 deg M 324.5743807627192 4.5834e-06 deg tp 2459123.230671204452 (2020-Sep-30.73067120) 1.5898e-05 TDB period 1247.205908742621 3.41 3.4577e-06 9.467e-09 d yr n .2886452008256891 8.0023e-10 deg/d Q 2.878485491698298 5.3201e-09 au   Orbit Determination Parameters    # obs. used (total)      2594      data-arc span      33656 days (92.15 yr)      first obs. used      1928-09-22      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45629      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:35:05   Additional Information  Earth MOID = .648143 au   Jupiter MOID = 2.52428 au   T_jup = 3.565  [ hide covariance matrix ] Orbital Elements at Epoch 2456967.5 (2014-Nov-06.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2684741209346231 3.0553e-08   q 1.658993837160254 7.0095e-08 au tp 2456628.021036070276 (2013-Dec-01.52103607) 1.7154e-05 TDB node 353.0826507542849 8.024e-05 deg peri 346.7901486239533 8.0399e-05 deg i 1.9411813436557 3.3247e-06 deg   Orbit Determination Parameters    # obs. used (total)      2594      data-arc span      33656 days (92.15 yr)      first obs. used      1928-09-22      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45629      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:35:05   Additional Information  Jupiter MOID = 2.52428 au   T_jup = 3.565  Orbit Covariance (6×6)   e q tp node peri i e 9.335054020931597E-16 -2.13977386199725E-15 -4.863099304358426E-14 -1.771484768248473E-16 -1.351710282806143E-14 -7.897083514943381E-16 q -2.13977386199725E-15 4.913345305702218E-15 9.318479827331261E-14 3.180687582879056E-16 2.706479001067525E-14 1.815812750195994E-15 tp -4.863099304358426E-14 9.318479827331261E-14 2.942757599553461E-10 1.868262882036387E-12 9.160096312777104E-11 -8.36110422375529E-15 node -1.771484768248473E-16 3.180687582879056E-16 1.868262882036387E-12 6.438536386439412E-9 -6.433908824084048E-9 -4.589216350904903E-11 peri -1.351710282806143E-14 2.706479001067525E-14 9.160096312777104E-11 -6.433908824084048E-9 6.464025205583847E-9 4.586608841917879E-11 i -7.897083514943381E-16 1.815812750195994E-15 -8.36110422375529E-15 -4.589216350904903E-11 4.586608841917879E-11 1.105354449276356E-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 14.0   n/a MPO384831   rotation period rot_per 54.778 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.] 8444 Popovich           Discovered 1969 Oct. 8 by L. I. Chernykh at the Crimean Astrophysical Observatory. Pavel Romanovich Popovich (b. 1930), a Soviet cosmonaut and specialist in space engineering, participated in the flights of Vostok 4, Soyuz 14 and Salyut 3. He was the first person admitted to the cosmonaut detachment in 1960 and one of the first six candidates selected for training for the first space flights. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010902/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1969 TR1 = 1928 SK = 1986 TA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-28 11:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin