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(2020 AT1)
Classification: Apollo [NEO]          SPK-ID: 3976536
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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 ]
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