+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21412 Sinchanban (1998 FJ67) Classification: Main-belt Asteroid          SPK-ID: 2021412 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03860998926038502 3.3168e-08   a 2.147459598885266 5.0743e-09 au q 2.064546206835195 7.2002e-08 au i 3.379410941442476 2.9434e-06 deg node 89.79174903015216 5.7406e-05 deg peri 334.9827342820977 6.9696e-05 deg M 138.2028698075503 3.9798e-05 deg tp 2458559.233975060487 (2019-Mar-16.73397506) 0.00012671 TDB period 1149.439003686638 3.15 4.0741e-06 1.115e-08 d yr n .3131962625640499 1.1101e-09 deg/d Q 2.230372990935337 5.2702e-09 au   Orbit Determination Parameters    # obs. used (total)      2170      data-arc span      9237 days (25.29 yr)      first obs. used      1995-03-31      last obs. used      2020-07-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48915      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 01:57:10   Additional Information  Earth MOID = 1.07841 au   Jupiter MOID = 2.8514 au   T_jup = 3.705  [ hide covariance matrix ] Orbital Elements at Epoch 2456866.5 (2014-Jul-28.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03825083915736465 3.3135e-08   q 2.065594327886108 7.1924e-08 au tp 2457408.710069024512 (2016-Jan-21.21006902) 0.00012714 TDB node 89.82501885172915 5.7411e-05 deg peri 334.7573388908803 6.9917e-05 deg i 3.379102703828925 2.9426e-06 deg   Orbit Determination Parameters    # obs. used (total)      2170      data-arc span      9237 days (25.29 yr)      first obs. used      1995-03-31      last obs. used      2020-07-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48915      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 01:57:10   Additional Information  Jupiter MOID = 2.8514 au   T_jup = 3.705  Orbit Covariance (6×6)   e q tp node peri i e 1.097946757162119E-15 -2.377822848354499E-15 -1.799897110226805E-12 3.362564836223905E-15 -5.854090996255064E-13 2.098641738836267E-16 q -2.377822848354499E-15 5.173111219350665E-15 3.986874004310493E-12 -6.87538544962363E-15 1.29156305697993E-12 -4.620568356302511E-16 tp -1.799897110226805E-12 3.986874004310493E-12 1.616473704625897E-8 -8.550322546255597E-12 5.083517066280103E-9 -1.152896623401627E-12 node 3.362564836223905E-15 -6.87538544962363E-15 -8.550322546255597E-12 3.296015958005894E-9 -3.292883084768932E-9 -6.66027145103698E-11 peri -5.854090996255064E-13 1.29156305697993E-12 5.083517066280103E-9 -3.292883084768932E-9 4.888447267486581E-9 6.612615358535872E-11 i 2.098641738836267E-16 -4.620568356302511E-16 -1.152896623401627E-12 -6.66027145103698E-11 6.612615358535872E-11 8.658910192319788E-12 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.8   n/a MPO416934   diameter diameter 2.391 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.407   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   21412 Sinchanban           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Sinchan Banerjee (b. 1989) was awarded second place in the 2006 Intel International Science and Engineering Fair for his behavioral and social sciences project. He attends the Clear Lake High School, Houston, Texas, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20060711/MPCPages.arc Last Updated: 2006-07-17 Alternate Designations  1998 FJ67 = 1999 RR178  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-29 15:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin