+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19402 (1998 EG14) Classification: Mars-crossing Asteroid          SPK-ID: 2019402 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2690977183305777 2.5407e-08   a 2.241435100310467 4.9303e-09 au q 1.638270029030851 5.7765e-08 au i 3.314293468397691 2.7387e-06 deg node 121.461609354854 6.6672e-05 deg peri 318.0560070510257 6.7318e-05 deg M 345.6296396322463 7.8889e-06 deg tp 2459249.427478878713 (2021-Feb-03.92747888) 2.686e-05 TDB period 1225.709860127187 3.36 4.0441e-06 1.107e-08 d yr n .2937073541716015 9.6906e-10 deg/d Q 2.844600171590083 6.257e-09 au   Orbit Determination Parameters    # obs. used (total)      1870      data-arc span      20935 days (57.32 yr)      first obs. used      1963-11-19      last obs. used      2021-03-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44464      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:53:34   Additional Information  Earth MOID = .655422 au   Jupiter MOID = 2.42063 au   T_jup = 3.584  [ 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 14.95   n/a E2021B10   rotation period rot_per 2.825 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html] [Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.] 19402 (1998 EG14)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla Reference: 20001211/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1998 EG14 = 1963 WB = 1995 HZ4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-22 21:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin