+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 AT1) Classification: Apollo [NEO]          SPK-ID: 3976536 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .303244924310805 0.00037724   a 1.344789806731661 0.00065258 au q .9369891235753767 5.2636e-05 au i 3.205464644571283 0.0045007 deg node 281.8631878356374 0.0014685 deg peri 224.0358568881528 0.0025878 deg M 196.64063568391 0.1416 deg tp 2459458.976803178787 (2021-Sep-01.47680318) 0.41219 TDB period 569.6131931825722 1.56 0.41462 0.001135 d yr n .6320078332255428 0.00046004 deg/d Q 1.752590489887946 0.00085047 au   Orbit Determination Parameters    # obs. used (total)      31      data-arc span      2 days      first obs. used      2020-01-05      last obs. used      2020-01-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .75448      source      ORB      producer      Otto Matic      solution date      2020-Apr-15 06:07:43   Additional Information  Earth MOID = .00618223 au   Jupiter MOID = 3.26167 au   T_jup = 4.837  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 27.5   .25872 MPO545158 autocmod 2.8 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2009-May-04 12:46 7_17:26 Earth 0.464239608621591 0.319914871400115 0.609216766564866 19.7506463812112 19.7503557835954 2454956.031598803 11126.1456116733 7265195.38315451 913.721030002839 6.52873338092812 7428.5819644257 T 5 CATAB v2.0f-lin.ifort 2020-Apr-15 06:07:45 2020-Apr-15 06:08 2020-Jan-08 18:17 00:04 Moon 0.00552043243269137 0.00549625110104733 0.00554461478899648 6.19804241539433 6.19708450543176 2458857.262105938 3.78052849957735 1211.67345046755 29.2720509074162 5.76034576618983 2672.6750528638 T 5 CATAB v2.0f-lin.ifort 2020-Apr-15 06:07:45 2020-Apr-15 06:08 2020-Jan-09 11:55 < 00:01 Earth 0.00633938630613782 0.00631527555116527 0.00636349329609274 6.22829267403799 6.16043979803496 2458857.996855590 0.683036927713723 1176.98239189991 15.564832285402 -0.519768077652071 456.164230275314 T 5 CATAB v2.0f-lin.ifort 2020-Apr-15 06:07:45 2020-Apr-15 06:08 2067-Apr-23 08:10 4_13:39 Mars 0.0648148586079572 0.0245354815414396 0.108267660728231 10.639166341944 10.6387511657114 2476128.840067365 6579.23304646022 2208210.28948568 399.561774013664 -14.4060892762894 5890.87281988814 T 5 CATAB v2.0f-lin.ifort 2020-Apr-15 06:07:45 2020-Apr-15 06:08 2094-Dec-17 05:20 7_04:09 Earth 0.258436205111946 0.118599430722202 0.398262481314398 14.007445961668 14.0067099046523 2486228.721962622 10328.7085082696 6972349.00485785 71.4653580556894 -0.244699317153733 1790.31792821204 T 5 CATAB v2.0f-lin.ifort 2020-Apr-15 06:07:45 2020-Apr-15 06:08 2095-Jun-03 12:03 8_14:50 Earth 0.439466711721574 0.36457839558072 0.51488370209885 6.13089782232364 6.12990881997085 2486397.001972438 12409.9538727715 3823895.83736928 572.617767838566 -11.4002456604375 11615.5658354771 T 5 CATAB v2.0f-lin.ifort 2020-Apr-15 06:07:45 2020-Apr-15 06:08 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-09 04:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin