+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14211 (1999 NT1) Classification: Mars-crossing Asteroid          SPK-ID: 2014211 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3188696085301936 4.0858e-08   a 2.305850119600853 6.0628e-09 au q 1.570584594634429 9.4638e-08 au i 21.35196298468045 4.7929e-06 deg node 282.0886389391991 1.1441e-05 deg peri 91.01371973553161 1.4556e-05 deg M 10.39230950556286 7.1543e-06 deg tp 2459163.580602020443 (2020-Nov-10.08060202) 2.5405e-05 TDB period 1278.924888209506 3.50 5.044e-06 1.381e-08 d yr n .2814864292022652 1.1102e-09 deg/d Q 3.041115644567277 7.996e-09 au   Orbit Determination Parameters    # obs. used (total)      1865      data-arc span      17017 days (46.59 yr)      first obs. used      1974-06-18      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .38294      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:16:46   Additional Information  Earth MOID = .734611 au   Jupiter MOID = 2.87503 au   T_jup = 3.432  [ 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 13.96   n/a E2021B10   rotation period rot_per 3.5856 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm] [Pray, D.P.; Kusnirak, P.; Galad, A.; Vilagi, J.; et al. (2007) Minor Planet Bull. 34, 44-46.] [Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm] [Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm] 14211 (1999 NT1)          Discovered 1999-Jul-12 by LINEAR at Socorro Reference: 20000320/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-27 04:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin