+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17602 Dr. G. (1995 SO1) Classification: Main-belt Asteroid          SPK-ID: 2017602 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1596931361871281 4.3328e-08   a 3.142104029141469 2.5741e-08 au q 2.640331582501656 1.3993e-07 au i 21.26986607779438 5.5761e-06 deg node 285.8528104097632 1.8179e-05 deg peri 128.0923233058076 2.966e-05 deg M 121.8045747325651 2.3213e-05 deg tp 2458312.180037026816 (2018-Jul-12.68003703) 0.00012843 TDB period 2034.366830756619 5.57 2.4999e-05 6.844e-08 d yr n .1769592359437503 2.1745e-09 deg/d Q 3.643876475781281 2.9851e-08 au   Orbit Determination Parameters    # obs. used (total)      925      data-arc span      9423 days (25.80 yr)      first obs. used      1994-07-11      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52284      source      ORB      producer      Otto Matic      solution date      2020-May-20 04:38:18   Additional Information  Earth MOID = 1.70464 au   Jupiter MOID = 1.76602 au   T_jup = 3.086  [ 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 13.5   n/a MPO467895   diameter diameter 9.879 km 0.309 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.095   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17602 Dr. G.           Discovered 1995 Sept. 19 by T. B. Spahr at the Catalina Station of Steward Observatory. Stephen Gottesman (b. 1939), a radio astronomer at the University of Florida for 35 years, was an advisor to 15 students and a teacher and friend to many others. His research involved galactic structure and dynamics, but his celestial namesake honors the endless enthusiasm and respect "Dr. G." afforded his students. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070730/MPCPages.arc Last Updated: 2007-08-07 [ show close-approach data ] Alternate Designations  1995 SO1 = 1994 NC5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-23 20:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin