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(2020 AR1)
Classification: Apollo [NEO]          SPK-ID: 3976535
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458853.5 (2020-Jan-05.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4856949457894817 0.00087976  
a 1.788443995686001 0.0028869 au
q .9198057861537647 8.8676e-05 au
i .2072529879952218 0.00029722 deg
node 346.6137319272246 0.023614 deg
peri 160.3263424575323 0.018566 deg
M 346.2621036791206 0.036522 deg
tp 2458886.837204412682
(2020-Feb-07.33720441)
0.0079123 TDB
period 873.5976242829361
2.39
2.1152
0.005791
d
yr
n .4120890327460473 0.00099778 deg/d
Q 2.657082205218237 0.004289 au
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      4 days  
   first obs. used      2020-01-04  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .42416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-08 06:53:41  

Additional Information
 Earth MOID = .00126673 au 
 Jupiter MOID = 2.36222 au 
 T_jup = 3.934 
[ 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 27.2   .3635 E2020A86 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
2020-Jan-08 05:17 < 00:01 Earth 0.0177500003125513 0.0176617980390984 0.0178381997187012 9.5876125138122 9.57194289036111 2458856.720370389 0.13028121534858 4383.78500291102 7.91807000641912 -0.0657520416330969 382.492945976012 T 4 CATAB v2.0f-lin.ifort 2020-Oct-08 06:53:43 2020-Oct-08 06:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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