+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3800 Karayusuf (1984 AB) Classification: Mars-crossing Asteroid          SPK-ID: 2003800 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 46 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07580534036142297 9.8456e-09   a 1.577817355102405 1.3291e-09 au q 1.458210373470707 1.5445e-08 au i 14.84724165724708 9.2996e-07 deg node 95.44170035250488 2.4781e-06 deg peri 115.7185176847605 7.7974e-06 deg M 224.7355484101148 7.1701e-06 deg tp 2459668.497364065967 (2022-Mar-29.99736407) 1.4428e-05 TDB period 723.9082398428943 1.98 9.1468e-07 2.504e-09 d yr n .4973005972112277 6.2835e-10 deg/d Q 1.697424336734103 1.4298e-09 au   Orbit Determination Parameters    # obs. used (total)      3885      data-arc span      16438 days (45.00 yr)      first obs. used      1975-12-03      last obs. used      2020-12-04      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .39425      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 14:09:34   Additional Information  Earth MOID = .485412 au   Jupiter MOID = 3.32338 au   T_jup = 4.359  [ 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 15.08   n/a E2021B10   diameter diameter 1.624 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   rotation period rot_per 2.2319 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2008) Minor Planet Bull. 35, 163-167.] [Warner, B.D. (2010) Minor Planet Bull. 37, 161-165.] [Warner, B.D. (2014) Minor Planet Bull. 41, 144-155.] [Franco, L.; Bacci, P.; Maestripieri, M.; Carotta, G.; et al. (2018) Minor Planet Bull. 45, 403.] [Klinglesmith III, D.A.; Lovata, E.A. (2018) Minor Planet Bull. 45, 397-398.] [Skiff, B.A. (2018) Posting on CALL web site: http://www.minorplanet.info/call.html] [Warner, B.D. (2018) Minor Planet Bull. 45, 380-386.] [Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Dose, E.V. (2020) Minor Planet Bull. 47, 324-330.] [Franco, L.; Marchini, A.; Scarfi, G.; Papini, R.; et al. (2020) Minor Planet Bull. 47, 270-272.] geometric albedo albedo 0.657   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 3800 Karayusuf (1984 AB)          Discovered 1984-Jan-04 by Helin, E. F. at Palomar Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1984 AB = 1975 XL4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Aug-04 03:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin