+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17078 Sellers (1999 HD3) Classification: Main-belt Asteroid          SPK-ID: 2017078 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1197591944385925 4.8906e-08   a 2.996296828208532 1.8959e-08 au q 2.637462733763369 1.4592e-07 au i 13.61541078520067 5.2805e-06 deg node 45.45973111085467 1.7001e-05 deg peri 311.5079533637327 2.594e-05 deg M 314.0841600950717 2.2452e-05 deg tp 2459442.121574975285 (2021-Aug-15.62157498) 0.00011919 TDB period 1894.41742046335 5.19 1.798e-05 4.923e-08 d yr n .1900320362932203 1.8036e-09 deg/d Q 3.355130922653696 2.1229e-08 au   Orbit Determination Parameters    # obs. used (total)      1557      data-arc span      10787 days (29.53 yr)      first obs. used      1991-02-07      last obs. used      2020-08-20      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50103      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:53:04   Additional Information  Earth MOID = 1.65609 au   Jupiter MOID = 2.16856 au   T_jup = 3.201  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.43   n/a E2021B10   diameter diameter 9.989 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.093   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17078 Sellers           Discovered 1999 Apr. 24 by J. Broughton at Reedy Creek Observatory. Peter Sellers (1925-1980) was an English character actor whose extraordinary abilities of mimicry and comedic characterization first blossomed in BBC radio's The Goon Show. He later became a star of Hollywood films such as Dr. Strangelove and The Pink Panther. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010509/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1999 HD3 = 1993 FG2 = 1998 FB92  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 13:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin