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(2020 AJ1)
Classification: Apollo [NEO]          SPK-ID: 3973548
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2458853.5 (2020-Jan-05.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .620111846508467 0.00086102  
a 1.439031822361802 0.0025707 au
q .5466711418125808 0.00026247 au
i 22.92310490485217 0.036409 deg
node 102.1595241791901 0.00021221 deg
peri 104.3337277121664 0.017451 deg
M 328.8584311605696 0.10613 deg
tp 2458908.043375384892
(2020-Feb-28.54337538)
0.039733 TDB
period 630.5274869035878
1.73
1.6896
0.004626
d
yr
n .5709505255161803 0.0015299 deg/d
Q 2.331392502911024 0.0041648 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      3 days  
   first obs. used      2020-01-04  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .28215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-08 06:23:49  

Additional Information
 Earth MOID = .0299987 au 
 Jupiter MOID = 2.90503 au 
 T_jup = 4.376 
[ 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 23.3   .50375 E2020A81 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
2016-Oct-14 17:54 9_01:53 Venus 0.0917133495154122 0.0365058796942377 0.294102749058276 25.9777673151466 25.9768558455487 2457676.245648090 13073.3823815393 10356947.2173671 332.365982048486 -23.4619716822022 16349.2503509736 T 4 CATAB v2.0f-lin.ifort 2020-Jan-08 06:23:51 2020-Jan-08 06:24
2018-Jul-24 05:16 5_11:49 Earth 0.15023083798212 0.149348087668199 0.182856374210002 23.1052643175924 23.1044966918326 2458323.719527468 7909.47203799054 4455859.97815337 720.349557912677 83.836638892161 29394.6415278779 T 4 CATAB v2.0f-lin.ifort 2020-Jan-08 06:23:51 2020-Jan-08 06:24
2020-Jan-07 15:00 < 00:01 Earth 0.0346991631224265 0.0345491695211622 0.0348491563177099 22.1660970799579 22.1626325998996 2458856.124992546 0.0735313745344484 7477.22192758117 8.76346575570465 -0.00548013432178525 576.732619388303 T 4 CATAB v2.0f-lin.ifort 2020-Jan-08 06:23:51 2020-Jan-08 06:24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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