+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   109120 (2001 QO43) Classification: Outer Main-belt Asteroid          SPK-ID: 2109120 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02075041789304598 4.368e-08   a 3.210008454212295 2.9269e-08 au q 3.143399437347179 1.3648e-07 au i 3.040826211736811 4.9873e-06 deg node 325.604496419924 8.6142e-05 deg peri 265.8466713832192 0.0001495 deg M 177.4610773741462 0.00012305 deg tp 2457964.980445951744 (2017-Jul-30.48044595) 0.00071833 TDB period 2100.669312806067 5.75 2.8731e-05 7.866e-08 d yr n .1713739510571101 2.3439e-09 deg/d Q 3.27661747107741 2.9876e-08 au   Orbit Determination Parameters    # obs. used (total)      771      data-arc span      6749 days (18.48 yr)      first obs. used      2001-07-27      last obs. used      2020-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54052      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 03:19:44   Additional Information  Earth MOID = 2.13396 au   Jupiter MOID = 1.71032 au   T_jup = 3.189  [ 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 MPO270575   diameter diameter 6.503 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.073   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   109120 (2001 QO43)          Discovered 2001-Aug-16 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  2001 QO43 = 2002 TT242 = 2003 YJ77  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-16 17:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin