+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   444 Gyptis (A899 FA) Classification: Main-belt Asteroid          SPK-ID: 2000444 [ 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 113 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1751196674243946 3.3192e-08   a 2.771920581046975 6.5488e-09 au q 2.286502770767194 9.3179e-08 au i 10.26998426507489 3.3043e-06 deg node 195.6551355925568 2.22e-05 deg peri 154.4573166016606 2.4607e-05 deg M 311.8302878793971 1.1855e-05 deg tp 2459226.049127527135 (2021-Jan-11.54912753) 5.5777e-05 TDB period 1685.658525557993 4.62 5.9737e-06 1.636e-08 d yr n .2135663863953889 7.5684e-10 deg/d Q 3.257338391326756 7.6956e-09 au   Orbit Determination Parameters    # obs. used (total)      2938      data-arc span      44417 days (121.61 yr)      first obs. used      1899-04-08      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47627      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:53:42   Additional Information  Earth MOID = 1.28616 au   Jupiter MOID = 2.22267 au   T_jup = 3.291  [ hide covariance matrix ] Orbital Elements at Epoch 2454936.5 (2009-Apr-15.0) TDB Reference: JPL 113 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1733548482293866 3.311e-08   q 2.291541840801395 9.2566e-08 au tp 2454177.477725865327 (2007-Mar-17.97772587) 5.4314e-05 TDB node 195.812679975672 2.2152e-05 deg peri 155.3305397653519 2.4598e-05 deg i 10.27867297729399 3.3071e-06 deg   Orbit Determination Parameters    # obs. used (total)      2938      data-arc span      44417 days (121.61 yr)      first obs. used      1899-04-08      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47627      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:53:42   Additional Information  Jupiter MOID = 2.22267 au   T_jup = 3.291  Orbit Covariance (6×6)   e q tp node peri i e 1.096244947320767E-15 -3.059654786196981E-15 -2.158960716037587E-13 3.013678263720264E-15 -7.622796580216961E-14 1.115337716938733E-15 q -3.059654786196981E-15 8.568536029575156E-15 5.741213998484063E-13 -9.621564647912504E-15 2.100414582157209E-13 -3.047185817095261E-15 tp -2.158960716037587E-13 5.741213998484063E-13 2.95001899353267E-9 -3.705920553441556E-12 6.010571314614594E-10 -2.785614892125288E-12 node 3.013678263720264E-15 -9.621564647912504E-15 -3.705920553441556E-12 4.90703038132962E-10 -4.835643831221405E-10 -9.772614648026157E-12 peri -7.622796580216961E-14 2.100414582157209E-13 6.010571314614594E-10 -4.835643831221405E-10 6.05040420042747E-10 9.052029795124128E-12 i 1.115337716938733E-15 -3.047185817095261E-15 -2.785614892125288E-12 -9.772614648026157E-12 9.052029795124128E-12 1.093687742506789E-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 8.1   n/a MPO473767 IRAS observations used: 13 magnitude slope G 0.22   n/a PDS3 (MPC 17258) Fit diameter diameter 159.331 km 0.490 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 6.214 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Harris, A.W.; Young, J.; Scaltriti, F.; Zappala, V. (1984) Icarus 57, 251-258.] [Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, N.M.; Krugly, Yu.N.; et al. (2005) Abstr. IAU Symp. 229, p. 133.] [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, M.; Krugly, Y.N.; et al. (2008) Icarus 196, 601-611.] [Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Carbognani, A.; Cellino, A.; Caminiti, S. (2019) Planet. Space Sci. 169, 15-34.] [Pilcher, F. (2019) Minor Planet Bull. 46, 445-448.] geometric albedo albedo 0.051   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.676   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=4.98, mean=8.90, max.=14.48) deg. U-B UB 0.293   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=4.98, mean=8.90, max.=14.48) deg. Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 444 Gyptis (A899 FA)          Discovered 1899-Mar-31 by Coggia, J. at Marseille Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A899 FA = 1950 HB1 = A899 PD  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 10:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin