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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 
[ 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 28.646   .35667 6 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-Nov-15 16:30 < 00:01 Moon 0.00277936690155827 0.00277161112803686 0.00278712270166997 19.3905421033008 19.3899339826534 2459169.187490318 0.984475233812289 386.98728190063 4.27849566979836 2.11404041354362 3301.39313514063 T 6 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2020-Nov-15 21:21 < 00:01 Earth 0.00270556010339904 0.00269748912748972 0.00271363082397106 19.3020982946077 19.2510094861413 2459169.389733141 0.336355137346607 400.315121683073 3.44659096808872 0.42105944188501 793.12814973856 T 6 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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