+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   277883 Basu (2006 JA69) Classification: Main-belt Asteroid          SPK-ID: 2277883 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1120968750091696 6.9053e-08   a 2.895190658847179 3.7277e-08 au q 2.570648833434671 2.0377e-07 au i 6.842782605070291 6.7037e-06 deg node 213.372599054552 6.0394e-05 deg peri 113.3982112673976 6.6351e-05 deg M 207.2945615401551 2.9915e-05 deg tp 2459763.748894159234 (2022-Jul-03.24889416) 0.00015629 TDB period 1799.343917732028 4.93 3.4751e-05 9.514e-08 d yr n .2000729246100767 3.8641e-09 deg/d Q 3.219732484259686 4.1456e-08 au   Orbit Determination Parameters    # obs. used (total)      164      data-arc span      6851 days (18.76 yr)      first obs. used      2001-04-29      last obs. used      2020-01-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58202      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 14:15:36   Additional Information  Earth MOID = 1.5692 au   Jupiter MOID = 2.12352 au   T_jup = 3.269  [ 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 16.2   n/a MPO470940   277883 Basu           Discovered 2006 May 1 by P. A. Wiegert at Mauna Kea. Shantanu Basu (b. 1964) is an American astrophysicist. He has performed numerical studies of star formation that have elucidated the effect of magnetic fields on cloud core and disk formation, and he was one of the originators of the Migrating Embryo model of circumstellar disk evolution. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2013-09-19 Last Updated: 2013-09-23 [ show close-approach data ] Alternate Designations  2006 JA69 = 2008 WJ77  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-03 16:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin