+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2408 Astapovich (1978 QK1) Classification: Main-belt Asteroid          SPK-ID: 2002408 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2411269596904577 3.3182e-08   a 2.638048487401907 9.9035e-09 au q 2.001943876118675 8.9246e-08 au i 17.71387170445974 4.2055e-06 deg node 164.354456915868 1.2856e-05 deg peri 103.4030127111333 1.5622e-05 deg M 319.5333520004758 8.9548e-06 deg tp 2459176.420851409234 (2020-Nov-22.92085141) 3.9295e-05 TDB period 1565.029713063186 4.28 8.8129e-06 2.413e-08 d yr n .2300275815820664 1.2953e-09 deg/d Q 3.27415309868514 1.2291e-08 au   Orbit Determination Parameters    # obs. used (total)      2456      data-arc span      28276 days (77.42 yr)      first obs. used      1943-04-08      last obs. used      2020-09-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40178      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:09:37   Additional Information  Earth MOID = 1.07014 au   Jupiter MOID = 2.18061 au   T_jup = 3.289  [ 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 12.12   n/a E2021B10   diameter diameter 31.285 km 0.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 3.67381 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Benishek, V. (2016) Minor Planet Bull. 43, 339-342.] [Ferrero, A.; Luna, V. (2016) Minor Planet Bull. 43-4, in press.] [Luna, V. (2016) Posting on CALL web site: http://www.minorplanet.info/call.html] [Skiff, B.A.; McLelland, K.P.; Sanborn, J.J.; Pravec, P.; Koehn, B.W. (2019) Minor Plantet Bull. 46, 238-265.] [Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.001   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   2408 Astapovich (1978 QK1)          Discovered 1978-Aug-31 by Chernykh, N. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1978 QK1 = 1943 GR = 1948 RH = 1977 DG5 = 1977 FW1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 05:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin