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(2020 WA1)
Classification: Apollo [NEO]          SPK-ID: 54088824
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459171.5 (2020-Nov-18.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .721506002629712 0.00080049  
a 2.526022086276171 0.0065528 au
q .7034819882526855 0.00019718 au
i .07306214503953376 0.00010252 deg
node 265.4564977762313 0.020715 deg
peri 76.17617825893956 0.020238 deg
M 10.81748278958695 0.046405 deg
tp 2459127.436615288564
(2020-Oct-04.93661529)
0.017567 TDB
period 1466.405706823654
4.01
5.706
0.01562
d
yr
n .2454982262581256 0.00095527 deg/d
Q 4.348562184299657 0.011281 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      4 days  
   first obs. used      2020-11-17  
   last obs. used      2020-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .38333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-26 05:21:13  

Additional Information
 Earth MOID = 6.03464E-6 au 
 Jupiter MOID = 1.0783 au 
 T_jup = 3.025 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 6.407790135934816E-7 -1.578129157527535E-7 1.406212237977343E-5 -6.305526718045413E-6 4.666416439778289E-6 7.408656734624696E-8
q -1.578129157527535E-7 3.887854988814223E-8 -3.463036854305102E-6 1.517392306894177E-6 -1.11228642933963E-6 -1.815667360815884E-8
tp 1.406212237977343E-5 -3.463036854305102E-6 .0003086028656847298 -.0001389923191684614 .000103048546233239 1.627403812108356E-6
node -6.305526718045413E-6 1.517392306894177E-6 -.0001389923191684614 .0004291010611593214 -.0004171519935884035 -1.571908590049635E-6
peri 4.666416439778289E-6 -1.11228642933963E-6 .000103048546233239 -.0004171519935884035 .000409565569500662 1.392926589331514E-6
i 7.408656734624696E-8 -1.815667360815884E-8 1.627403812108356E-6 -1.571908590049635E-6 1.392926589331514E-6 1.051031191039927E-8

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 28.646   .35667 6 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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