+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1727 Mette (1965 BA) Classification: Mars-crossing Asteroid          SPK-ID: 2001727 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 47 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1020519120516958 4.7023e-09   a 1.853836816877071 2.9728e-09 au q 1.664649225082936 7.8383e-09 au i 22.90009481581445 6.5811e-07 deg node 133.0078861480116 2.0981e-06 deg peri 313.0661347768759 7.7835e-06 deg M 147.7693967843402 8.5591e-06 deg tp 2459018.068149897429 (2020-Jun-17.56814990) 2.152e-05 TDB period 921.9464178753617 2.52 2.2176e-06 6.071e-09 d yr n .3904782241354384 9.3924e-10 deg/d Q 2.043024408671205 3.2761e-09 au   Orbit Determination Parameters    # obs. used (total)      3246      data-arc span      24232 days (66.34 yr)      first obs. used      1955-02-23      last obs. used      2021-06-28      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .32492      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 12:43:27   Additional Information  Earth MOID = .716646 au   Jupiter MOID = 3.09192 au   T_jup = 3.901  [ 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 12.68   n/a MPCxxxxx   rotation period rot_per 2.98109 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Gandolfi, D.; Cigna, M.; Fulvio, D.; Blanco, C. (2009) Planet. Space Sci. 57, 1-9.] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Warner, B.D. (2011) Minor Planet Bull. 38, 190-195.] [Warner, B.D.; Stephens, R.D.; Harris, A.W. (2013) CBET 3402.] [Warner, B.D.; Stephens, R.D. (2013) Minor Planet Bull. 40, 129-130.] [Warner, B.D.; Stephens, R.D.; Harris, A.W. (2015) Minor Planet Bull. 42, 31-34.] [Aznar, A.M.; Carreno Garcerain, A.; Arce Masego, E.; Brines Rodriques, P.; et al. (2016) Minor Planet Bull. 43, 257-263.] [Warner, B.D. (2016) Minor Planet Bull. 43, 300-304.] [Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 50-60.] Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979) 1727 Mette           Discovered 1965 Jan. 25 by A. D. Andrews at Bloemfontein. Named by the discoverer in honor of his wife "for her tolerance of my nocturnal working hours and for the many months spent away from home". NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC 5183 Last Updated: 2006-03-21 [ show close-approach data ] Alternate Designations  1965 BA = 1955 DC  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jul-31 02:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin