+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   8315 Bajin (1997 WA22) Classification: Main-belt Asteroid          SPK-ID: 2008315 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1706817689200114 2.5802e-08   a 2.214507184868769 6.4948e-09 au q 1.836531181269293 5.7039e-08 au i 7.881065675382186 2.9217e-06 deg node 85.54391280746339 2.497e-05 deg peri 182.8270764831574 2.7245e-05 deg M 215.4087019023691 1.2532e-05 deg tp 2459683.952403093562 (2022-Apr-14.45240309) 4.2904e-05 TDB period 1203.688378232592 3.30 5.2954e-06 1.45e-08 d yr n .2990807309518082 1.3157e-09 deg/d Q 2.592483188468246 7.6034e-09 au   Orbit Determination Parameters    # obs. used (total)      2038      data-arc span      15229 days (41.69 yr)      first obs. used      1979-06-22      last obs. used      2021-03-02      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46935      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 20:30:38   Additional Information  Earth MOID = .818773 au   Jupiter MOID = 2.4941 au   T_jup = 3.623  [ 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 14.7   n/a MPO439141   diameter diameter 6.087 km 1.458 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   geometric albedo albedo 0.037   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   8315 Bajin           Discovered 1997 Nov. 25 by the Beijing Schmidt CCD Asteroid Program at Xinglong. Named in honor of Jin Ba (b. 1904), president of the Chinese Writer's Association. He is one of the most influential Chinese writers since the May 4 New Culture Movement, an eminent master of Chinese literature in the twentieth century and an outstanding translator, editor and publisher. His works are widely disseminated around the world. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19990728/MPCPages.arc Last Updated: 2010-06-11 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1988-Mar-06 14:46 < 00:01 Amphi 0.0489107457988611 0.0489086113989125 0.0489128802114092 5.18020667365895 5.18020665096962 2447227.115533529 0.392658668639069 114.31841654999 37.2792455725708 -22.7499572767928 96119.4980486007 T 38 CATAB v2.0f-lin.ifort 2021-Apr-12 20:30:46 2021-Apr-12 20:30 Alternate Designations  1997 WA22 = 1979 MU = 1989 NT = 1992 JP4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 06:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin