+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17912 (1999 FV44) Classification: Main-belt Asteroid          SPK-ID: 2017912 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2104918520585504 1.1689e-08   a 2.296843167182417 5.8734e-09 au q 1.813376395034164 2.6147e-08 au i 6.311225299185043 7.9237e-07 deg node 203.7342836955532 1.5557e-05 deg peri 181.6581783897377 1.4432e-05 deg M 216.864395541663 6.5664e-06 deg tp 2459706.022645484131 (2022-May-06.52264548) 2.4098e-05 TDB period 1271.43873855131 3.48 4.8769e-06 1.335e-08 d yr n .2831438032242023 1.0861e-09 deg/d Q 2.780309939330671 7.1097e-09 au   Orbit Determination Parameters    # obs. used (total)      2122      data-arc span      13146 days (35.99 yr)      first obs. used      1985-01-21      last obs. used      2021-01-18      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47815      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:17:39   Additional Information  Earth MOID = .816138 au   Jupiter MOID = 2.67248 au   T_jup = 3.557  [ 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 14.29   n/a E2021B10   diameter diameter 3.759 km 0.556 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.164   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   17912 (1999 FV44)          Discovered 1999-Mar-20 by LINEAR at Socorro Reference: 20001013/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 FV44 = 1990 QB18 = 1996 FG20 = 2000 LQ12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 01:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin