+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190705 (2001 FW146) Classification: Main-belt Asteroid          SPK-ID: 2190705 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .01812729473757551 5.704e-08   a 2.997264045888933 2.5676e-08 au q 2.942931757122767 1.8003e-07 au i 9.478152496145194 5.1497e-06 deg node 329.4941967446385 2.3526e-05 deg peri 199.294252567744 0.00011614 deg M 308.0178367295429 0.0001144 deg tp 2459474.176672731036 (2021-Sep-16.67667273) 0.00060313 TDB period 1895.334783790473 5.19 2.4355e-05 6.668e-08 d yr n .1899400586528768 2.4407e-09 deg/d Q 3.0515963346551 2.6142e-08 au   Orbit Determination Parameters    # obs. used (total)      644      data-arc span      7245 days (19.84 yr)      first obs. used      2001-03-20      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53701      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 12:03:16   Additional Information  Earth MOID = 1.95165 au   Jupiter MOID = 1.94452 au   T_jup = 3.233  [ 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 15.0   n/a MPO454317   diameter diameter 3.596 km 0.737 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.150   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   190705 (2001 FW146)          Discovered 2001-Mar-24 by LONEOS at Anderson Mesa Reference: 20080917/Numbers.arc Last Updated: 2008-09-19 [ show close-approach data ] Alternate Designations  2001 FW146 = 2003 SG94  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 07:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin