+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22683 (1998 QB48) Classification: Main-belt Asteroid          SPK-ID: 2022683 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .01016726403507572 2.0301e-08   a 2.572250655122112 8.8404e-09 au q 2.546097903547089 5.2834e-08 au i 9.188285435253697 1.0594e-06 deg node 186.393885020556 5.2658e-06 deg peri 73.75538021657844 6.8096e-05 deg M 231.3917871223427 6.8239e-05 deg tp 2459738.812617348875 (2022-Jun-08.31261735) 0.00028672 TDB period 1506.844220205023 4.13 7.7681e-06 2.127e-08 d yr n .2389098986961095 1.2316e-09 deg/d Q 2.598403406697135 8.9303e-09 au   Orbit Determination Parameters    # obs. used (total)      2152      data-arc span      14967 days (40.98 yr)      first obs. used      1980-03-23      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49121      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:09:19   Additional Information  Earth MOID = 1.54803 au   Jupiter MOID = 2.37043 au   T_jup = 3.411  [ 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 13.8   n/a MPO502332   diameter diameter 4.514 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.415   0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22683 (1998 QB48)          Discovered 1998-Aug-17 by LINEAR at Socorro Reference: 20010309/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 QB48 = 1980 FJ6 = 2000 AY184  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 21:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin