+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5332 Davidaguilar (1990 DA) Classification: Amor [NEO]          SPK-ID: 2005332 [ 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 263 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4556498038507966 3.5417e-08   a 2.165023852464397 6.7524e-09 au q 1.178531158756698 7.6687e-08 au i 25.49022055762551 4.4878e-06 deg node 142.8219298275376 1.0625e-05 deg peri 305.9455037726921 1.2415e-05 deg M 204.3203146229882 1.2624e-05 deg tp 2459503.678295302345 (2021-Oct-16.17829530) 4.285e-05 TDB period 1163.569838095219 3.19 5.4435e-06 1.49e-08 d yr n .3093926880996891 1.4474e-09 deg/d Q 3.151516546172095 9.8291e-09 au   Orbit Determination Parameters    # obs. used (total)      1365      data-arc span      16720 days (45.78 yr)      first obs. used      1973-10-18      last obs. used      2019-07-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5099      source      ORB      producer      Otto Matic      solution date      2020-Feb-04 05:39:19   Additional Information  Earth MOID = .3071 au   Jupiter MOID = 2.36262 au   T_jup = 3.440  [ 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 14.8   n/a MPO473840   diameter diameter 3.6 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15) rotation period rot_per 5.803 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Binzel, R.P. (1990) IAUC 4969.] [Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] [Skiff, B.A.; McLelland, K.P.; Sanborn, J.J.; Pravec, P.; Koehn, B.W. (2019) Minor Plantet Bull. 46, 238-265.] [Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46-4, submitted. (NEA Gaggle) http://www.planetarysciences.org/lightcurves.html] 5332 Davidaguilar           Discovered 1990 Feb. 16 by A. Sugie at Dynic. David Aguilar (b. 1945), director of public affairs at the Harvard-Smithsonian Center for Astrophysics, has shown a lifelong devotion to astronomy and science communication as a public relations professional, writer and space artist. He also is an astronomical photographer and an avid telescope maker. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20081212/MPCPages.arc Last Updated: 2008-12-12 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-25 06:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin