+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1598400212003852 4.3175e-08   a 3.141451051316192 2.5504e-08 au q 2.63932144867384 1.3917e-07 au i 21.26998426242454 5.5126e-06 deg node 285.8505546982824 1.8029e-05 deg peri 128.0275942779058 2.9354e-05 deg M 157.2777132500277 2.308e-05 deg tp 2458311.997696936161 (2018-Jul-12.49769694) 0.00012678 TDB period 2033.732704356481 5.57 2.4766e-05 6.781e-08 d yr n .1770144125768544 2.1557e-09 deg/d Q 3.643580653958545 2.9581e-08 au   Orbit Determination Parameters    # obs. used (total)      953      data-arc span      9451 days (25.88 yr)      first obs. used      1994-07-11      last obs. used      2020-05-26      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51966      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:07:48   Additional Information  Earth MOID = 1.70327 au   Jupiter MOID = 1.76729 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 13.46   n/a E2021B10   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 ] 2021-Apr-15 03:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin