+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17502 Manabeseiji (1992 FD1) Classification: Main-belt Asteroid          SPK-ID: 2017502 [ 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 .1194880819574971 4.0394e-08   a 2.278243400568445 7.5066e-09 au q 2.006020466402196 9.1644e-08 au i 4.206383475841217 4.2795e-06 deg node 25.73667958910835 5.079e-05 deg peri 176.0157359971004 5.3058e-05 deg M 116.334145342942 1.6231e-05 deg tp 2458794.614710848535 (2019-Nov-07.11471085) 5.6258e-05 TDB period 1256.0259385908 3.44 6.2078e-06 1.7e-08 d yr n .2866182846541389 1.4166e-09 deg/d Q 2.550466334734694 8.4036e-09 au   Orbit Determination Parameters    # obs. used (total)      1564      data-arc span      10808 days (29.59 yr)      first obs. used      1991-01-19      last obs. used      2020-08-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5283      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:04:38   Additional Information  Earth MOID = 1.00199 au   Jupiter MOID = 2.40522 au   T_jup = 3.594  [ 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 14.91   n/a E2021B10   diameter diameter 2.979 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.151   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17502 Manabeseiji           Discovered 1992 Mar. 23 by K. Endate and K. Watanabe at Kitami. Seiji Manabe (b. 1947) was a project manager of the VLBI Exploration of Radio Astronomy, which led to the high-precision determination of trigonometric parallaxes for Galactic radio sources. He served as head of the Earth Rotation Division at the National Observatory of Japan and as director of Mizusawa Observatory. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20091004/MPCPages.arc Last Updated: 2009-10-06 [ show close-approach data ] Alternate Designations  1992 FD1 = 1997 UV4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-May-08 21:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin