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(2020 WN)
Classification: Apollo [NEO]          SPK-ID: 54088812
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4202677084325946 0.00033952  
a 1.416017987721009 0.00067644 au
q .8209113529221664 8.8637e-05 au
i 6.278129697904848 0.0043341 deg
node 62.37716944081855 0.00053509 deg
peri 64.06126109134262 0.0013839 deg
M 346.5884700552969 0.015724 deg
tp 2459223.428592987703
(2021-Jan-08.92859299)
0.010453 TDB
period 615.4624796429731
1.69
0.44101
0.001207
d
yr
n .5849259896538849 0.00041913 deg/d
Q 2.011124622519851 0.00096072 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      6 days  
   first obs. used      2020-11-16  
   last obs. used      2020-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .4451  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-26 05:21:13  

Additional Information
 Earth MOID = .000779323 au 
 Jupiter MOID = 3.07695 au 
 T_jup = 4.616 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459171.5 (2020-Nov-18.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4219770659563002 0.00033734  
q .8220741717482388 9.0694e-05 au
tp 2459223.203171449714
(2021-Jan-08.70317145)
0.0098696 TDB
node 62.38864282057735 0.00050977 deg
peri 63.70486174316972 0.00061469 deg
i 6.263360304947149 0.0043514 deg
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      6 days  
   first obs. used      2020-11-16  
   last obs. used      2020-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .4451  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-26 05:21:13  

Additional Information
 Jupiter MOID = 3.07695 au 
 T_jup = 4.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.138010317070324E-7 -3.059050195200349E-8 -3.329001278836221E-6 1.714928493906463E-7 -1.720442301812142E-7 1.467871919398073E-6
q -3.059050195200349E-8 8.225358857419915E-9 8.946104040791864E-7 -4.605291811718624E-8 4.571378444918756E-8 -3.946191965831187E-7
tp -3.329001278836221E-6 8.946104040791864E-7 9.740818189272926E-5 -5.021220858629526E-6 5.087382160551446E-6 -4.293476696655932E-5
node 1.714928493906463E-7 -4.605291811718624E-8 -5.021220858629526E-6 2.598618286786615E-7 -2.697438210244177E-7 2.210633076564811E-6
peri -1.720442301812142E-7 4.571378444918756E-8 5.087382160551446E-6 -2.697438210244177E-7 3.778382175277548E-7 -2.208663130833731E-6
i 1.467871919398073E-6 -3.946191965831187E-7 -4.293476696655932E-5 2.210633076564811E-6 -2.208663130833731E-6 1.893504013772902E-5

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 27.4   .91282 E2021-CC3 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
1995-Aug-06 13:57 5_00:25 Venus 0.119783687047848 0.0942090662372117 0.315480218903074 4.295291581855 4.2910688631824 2449936.080953989 7224.74539656948 11327059.9790402 111.439231781339 -51.9636150539855 60747.8904278118 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2002-May-14 10:07 3_06:00 Venus 0.120038720298342 0.0300424044998139 0.222846665160992 4.17914183559475 4.17481086163433 2452408.921413794 4680.34288623971 5197580.18878989 131.677616811843 -13.4486544687236 11820.8603182387 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2009-Apr-17 12:39 8_08:22 Earth 0.214473410626773 0.0924228342919686 0.362817337305092 16.5963211210047 16.595572543342 2454939.026855423 12021.5836325469 7739730.38576163 83.6510329118336 -22.4193163447348 149429.043291862 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2020-Nov-23 02:29 < 00:01 Earth 0.0111663157822132 0.0111409611164529 0.0111916700177353 11.2976749711015 11.2765342449203 2459176.603150129 0.0587525041590745 1259.58189463253 4.74870825168005 -0.168167894474765 882.345368931249 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2029-Jun-09 06:46 1_14:21 Venus 0.149931845510861 0.0689800714826022 0.246528355433043 5.31082089268077 5.30809301460881 2462296.781872562 2300.94257941735 5057488.51903704 93.2921205403318 -23.0671075122972 21195.5636350198 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2031-Apr-11 23:01 8_09:22 Earth 0.113232975531291 0.0807539216746823 0.226039277655825 13.0844963899228 13.0826978823374 2462968.458869278 12081.9453913664 6569862.13601355 69.1411819807842 -45.5011875898486 204213.050299617 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2031-Jun-24 04:51 3_02:41 Mars 0.0505877861417904 0.00228141205325097 0.154220055216358 13.373531792531 13.3731086162967 2463041.701834339 4481.47142696833 5169446.56121995 128.454422224661 2.58932012284864 2609.57498035385 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2036-Mar-13 19:31 2_22:51 Venus 0.130820567338381 0.091444768111084 0.278904415226055 4.78554523364119 4.78207531757282 2464766.313250923 4251.02652973899 8474445.10990544 88.0766070127629 -44.4313746535154 50406.1875691232 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2036-May-01 01:25 8_19:14 Earth 0.459701670555308 0.287646846498619 0.634551682191654 24.0431792550983 24.0429381832166 2464814.559130872 12674.4078948944 8832421.64854807 133.108368880932 -10.8141157473685 91597.7623897624 T 8 CATAB v2.0f-lin.ifort 2020-Nov-26 05:21:14 2020-Nov-26 05:21
2074-Dec-17 17:57 4_06:50 Venus 0.123771501156982 0.0386172767296157 0.269615303428501 4.35694335141158 4.35291463025433 2478924.248145474 6170.18734184343 7438617.88826143 110.802224922679 -18.3255885087574 16094.8397543798 T 8 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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