+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17870 (1998 QU92) Classification: Main-belt Asteroid          SPK-ID: 2017870 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1614027940912001 1.5683e-08   a 2.395372618409834 7.5464e-09 au q 2.008752784908932 3.7923e-08 au i 6.767759505366278 5.2945e-07 deg node 70.20439076837008 7.1922e-06 deg peri 306.1301296513005 8.7607e-06 deg M 5.570056431134287 5.8598e-06 deg tp 2459179.548498978991 (2020-Nov-26.04849898) 2.2047e-05 TDB period 1354.122792258192 3.71 6.3991e-06 1.752e-08 d yr n .2658547674244881 1.2563e-09 deg/d Q 2.781992451910735 8.7644e-09 au   Orbit Determination Parameters    # obs. used (total)      2366      data-arc span      24099 days (65.98 yr)      first obs. used      1955-03-14      last obs. used      2021-03-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45411      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:16:29   Additional Information  Earth MOID = 1.01824 au   Jupiter MOID = 2.69201 au   T_jup = 3.502  [ 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 13.96   n/a E2021B10   diameter diameter 4.079 km 0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.293   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17870 (1998 QU92)          Discovered 1998-Aug-28 by LINEAR at Socorro Reference: 20001013/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 QU92 = 1976 YW5 = 1987 WT3 = 1992 AD6 = 1996 MU1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 13:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin