+ 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 ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07365079847935777 3.4793e-08   a 2.842393452389025 1.2565e-08 au q 2.633048905028075 1.0101e-07 au i 1.960696451539001 3.732e-06 deg node 11.70682600887456 9.8392e-05 deg peri 324.6453525262825 0.00010093 deg M 237.8300385479392 2.3947e-05 deg tp 2459794.500285936521 (2022-Aug-03.00028594) 0.00011772 TDB period 1750.349270766187 4.79 1.1607e-05 3.178e-08 d yr n .2056732367720048 1.3638e-09 deg/d Q 3.051737999749975 1.3491e-08 au   Orbit Determination Parameters    # obs. used (total)      2043      data-arc span      25337 days (69.37 yr)      first obs. used      1951-11-08      last obs. used      2021-03-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48774      source      ORB      producer      Otto Matic      solution date      2021-May-04 00:57:16   Additional Information  Earth MOID = 1.62179 au   Jupiter MOID = 2.2233 au   T_jup = 3.304  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.85   n/a E2021B10   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 Alternate Designations  1998 QP41 = 1979 SP8 = 1992 HT6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-08 20:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin