+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   39901 (1998 FW27) Classification: Main-belt Asteroid          SPK-ID: 2039901 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1621591809683764 2.926e-08   a 2.34832453840397 8.2053e-09 au q 1.967522154608442 6.8879e-08 au i 1.399029779078135 3.6396e-06 deg node 265.8807827627103 0.00015964 deg peri 195.3982327055032 0.00016027 deg M 115.6498349970139 1.4533e-05 deg tp 2458578.241774878795 (2019-Apr-04.74177488) 5.2041e-05 TDB period 1314.424365997225 3.60 6.8891e-06 1.886e-08 d yr n .2738841498322924 1.4355e-09 deg/d Q 2.729126922199498 9.5359e-09 au   Orbit Determination Parameters    # obs. used (total)      914      data-arc span      8713 days (23.85 yr)      first obs. used      1996-09-06      last obs. used      2020-07-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52363      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 00:19:10   Additional Information  Earth MOID = .98445 au   Jupiter MOID = 2.41452 au   T_jup = 3.541  [ hide covariance matrix ] Orbital Elements at Epoch 2457178.5 (2015-Jun-05.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1619176236281078 2.9242e-08   q 1.968086173114291 6.8793e-08 au tp 2457264.755638949648 (2015-Aug-30.25563895) 4.9494e-05 TDB node 265.9785086122297 0.00015971 deg peri 195.6165592347539 0.00016034 deg i 1.398723371916843 3.6379e-06 deg   Orbit Determination Parameters    # obs. used (total)      914      data-arc span      8713 days (23.85 yr)      first obs. used      1996-09-06      last obs. used      2020-07-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52363      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 00:19:10   Additional Information  Jupiter MOID = 2.41452 au   T_jup = 3.541  Orbit Covariance (6×6)   e q tp node peri i e 8.550953095263175E-16 -2.00163504938328E-15 -2.964882125134628E-13 2.146868981678891E-15 -9.823071456474875E-14 -4.223839438476369E-17 q -2.00163504938328E-15 4.732544475339068E-15 8.016991279310537E-13 -4.330602041297999E-15 2.587768111980044E-13 8.512833670239575E-17 tp -2.964882125134628E-13 8.016991279310537E-13 2.449651778261846E-9 1.55467617770822E-12 7.193318027484676E-10 -1.989375774751235E-13 node 2.146868981678891E-15 -4.330602041297999E-15 1.55467617770822E-12 2.550754586238402E-8 -2.549913170566893E-8 -1.517683422248746E-10 peri -9.823071456474875E-14 2.587768111980044E-13 7.193318027484676E-10 -2.549913170566893E-8 2.571002232685774E-8 1.516677145809046E-10 i -4.223839438476369E-17 8.512833670239575E-17 -1.989375774751235E-13 -1.517683422248746E-10 1.516677145809046E-10 1.323434407033965E-11 [ 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 15.8   n/a MPO452721   39901 (1998 FW27)          Discovered 1998-Mar-20 by LINEAR at Socorro Reference: 20020526/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 FW27 = 2000 VU22  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-16 16:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin