+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14921 (1994 QA) Classification: Main-belt Asteroid          SPK-ID: 2014921 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2231566512912346 2.4719e-08   a 2.332008955051375 7.0963e-09 au q 1.811605645860938 6.034e-08 au i 25.10741168665389 1.074e-06 deg node 69.33061737633996 6.1768e-06 deg peri 121.2637003185086 8.3176e-06 deg M 6.544382282798646 4.8132e-06 deg tp 2459372.853879029748 (2021-Jun-07.35387903) 1.7321e-05 TDB period 1300.749739462085 3.56 5.9373e-06 1.626e-08 d yr n .2767634611626947 1.2633e-09 deg/d Q 2.85241226424181 8.6799e-09 au   Orbit Determination Parameters    # obs. used (total)      2127      data-arc span      16294 days (44.61 yr)      first obs. used      1976-11-17      last obs. used      2021-06-28      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43978      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 03:40:30   Additional Information  Earth MOID = .894296 au   Jupiter MOID = 2.3381 au   T_jup = 3.413  [ 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 14.07   n/a MPO614063   diameter diameter 3.658 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 12.9134 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Galad, A.; Kornos, L.; Gajdos, S. (2009) Minor Planet Bull. 36, 13-15.] geometric albedo albedo 0.692   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14921 (1994 QA)          Discovered 1994-Aug-16 by Garradd, G. J. at Siding Spring Reference: 20000523/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1994 QA = 1950 GG = 1992 BV3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-23 20:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin