+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11892 (1991 FT2) Classification: Main-belt Asteroid          SPK-ID: 2011892 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06889278272337021 2.9677e-08   a 2.22050306485995 5.6127e-09 au q 2.067526429675976 6.6267e-08 au i 4.064513770818459 4.6853e-06 deg node 9.33442522438629 4.3741e-05 deg peri 80.39383968470743 5.5568e-05 deg M 130.9285831179683 3.4257e-05 deg tp 2458956.950834789464 (2020-Apr-17.45083479) 0.00011478 TDB period 1208.58024815879 3.31 4.5824e-06 1.255e-08 d yr n .297870166708782 1.1294e-09 deg/d Q 2.373479700043925 5.9994e-09 au   Orbit Determination Parameters    # obs. used (total)      1599      data-arc span      11068 days (30.30 yr)      first obs. used      1991-03-09      last obs. used      2021-06-27      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53797      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 16:39:06   Additional Information  Earth MOID = 1.08857 au   Jupiter MOID = 2.72525 au   T_jup = 3.643  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.16   n/a E2021B10   diameter diameter 2.832 km 0.380 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.201   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11892 (1991 FT2)          Discovered 1991-Mar-20 by Debehogne, H. at La Silla Reference: 19991026/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 FT2 = 1994 AT15  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Aug-03 18:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin