+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11372 (1998 QP41) Classification: Main-belt Asteroid          SPK-ID: 2011372 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07345114019926496 3.6475e-08   a 2.842997540417011 1.2892e-08 au q 2.634176129489675 1.0509e-07 au i 1.960506933854346 3.818e-06 deg node 11.70725171840323 0.00010185 deg peri 324.5583899018131 0.00010432 deg M 196.7863234926717 2.4e-05 deg tp 2459794.311159070037 (2022-Aug-02.81115907) 0.00011851 TDB period 1750.90729760249 4.79 1.1909e-05 3.261e-08 d yr n .2056076872219029 1.3985e-09 deg/d Q 3.051818951344346 1.3839e-08 au   Orbit Determination Parameters    # obs. used (total)      1997      data-arc span      25052 days (68.59 yr)      first obs. used      1951-11-08      last obs. used      2020-06-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48975      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:00:00   Additional Information  Earth MOID = 1.62479 au   Jupiter MOID = 2.22328 au   T_jup = 3.304  [ 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 MPO337354   diameter diameter 5.631 km 0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 3.17 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.] geometric albedo albedo 0.184   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11372 (1998 QP41)          Discovered 1998-Aug-17 by LINEAR at Socorro Reference: 19990831/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 QP41 = 1979 SP8 = 1992 HT6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 15:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin