+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2023 Asaph (1952 SA) Classification: Main-belt Asteroid          SPK-ID: 2002023 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .279523884425151 6.6436e-08   a 2.87880145547483 1.4764e-08 au q 2.074107690151727 1.9046e-07 au i 22.33683814651493 7.0572e-06 deg node 3.086024142161806 1.0333e-05 deg peri 357.3129088885453 1.3476e-05 deg M 301.0420495227222 1.3843e-05 deg tp 2459292.683626056846 (2021-Mar-19.18362606) 7.0369e-05 TDB period 1784.086870879322 4.88 1.3725e-05 3.758e-08 d yr n .201783896219452 1.5523e-09 deg/d Q 3.683495220797934 1.8891e-08 au   Orbit Determination Parameters    # obs. used (total)      1869      data-arc span      24898 days (68.17 yr)      first obs. used      1952-09-16      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43996      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:03:58   Additional Information  Earth MOID = 1.07168 au   Jupiter MOID = 1.77218 au   T_jup = 3.129  [ 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 11.7   n/a MPO395012   diameter diameter 19.678 km 0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 89.2 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] [Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 224-230.] geometric albedo albedo 0.096   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   2023 Asaph (1952 SA)          Discovered 1952-Sep-16 by Goethe Link Observatory at Brooklyn Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 22:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin