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(2020 KM4)
Classification: Apollo [NEO]          SPK-ID: 54017229
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2230975629429173 8.7458e-05  
a 1.271817952823051 0.00013287 au
q .9880784670411781 8.0064e-06 au
i 6.092488333194675 0.0021561 deg
node 64.57122407583689 2.8027e-05 deg
peri 214.5299383189927 6.17e-05 deg
M 341.6003711306266 0.0037475 deg
tp 2459027.275797565870
(2020-Jun-26.77579757)
0.0012579 TDB
period 523.8848670343476
1.43
0.082096
0.0002248
d
yr
n .6871738861973984 0.00010768 deg/d
Q 1.555557438604924 0.00016251 au
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      14 days  
   first obs. used      2020-05-12  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .43631  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-14 06:30:21  

Additional Information
 Earth MOID = .00537812 au 
 Jupiter MOID = 3.55294 au 
 T_jup = 5.050 
[ 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 27.915   .39966 4 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
1925-Aug-31 01:28 9_08:11 Earth 0.315230602848094 0.173397769802077 0.470669321183602 13.1511829513766 13.1505402195919 2424393.561075730 13450.5624118891 8106538.94985267 32.3475651675574 20.9374386119147 402147.025574419 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
1966-Feb-21 16:40 7_14:22 Earth 0.451423535146244 0.426534362424987 0.476375863968811 6.94164945691831 6.94079911795053 2439178.194111412 10941.5139107379 1270905.52164021 34.5578754969722 -12.1718856470145 194331.575658212 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
1966-Sep-08 16:26 4_09:46 Earth 0.46080738050616 0.38259726649158 0.539783710586364 17.5994573494176 17.5991288022656 2439377.184983905 6346.48224516198 4029627.623301 34.1039422325417 13.2553677838226 378159.867573988 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
1969-Apr-24 02:30 2_05:44 Earth 0.442153632596462 0.399705778657686 0.484625611045147 17.6757872362998 17.6754463067992 2440335.604136001 3224.21100371876 2123558.95447859 3.7681510224567 -4.39902867501589 1076999.19327497 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
1969-Nov-07 15:32 2_21:45 Earth 0.431832529834866 0.417063777625502 0.446864474643045 7.4660716074186 7.46524513400118 2440533.147483967 4184.81960775532 913657.221799967 18.3453555621609 -35.5792368454534 1320632.12582267 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
1983-Feb-18 19:42 5_05:01 Earth 0.463803930222093 0.446342102342513 0.481276769404925 7.18233339781925 7.18153349623682 2445384.320875025 7500.50450194977 878285.788138928 35.952808401438 -7.50745053739424 122988.161516982 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
1983-Sep-10 14:13 2_21:28 Earth 0.496551482223605 0.439440965117538 0.554013940148942 18.7053117284916 18.7050248576192 2445588.092472121 4168.19874759678 2931733.18583656 34.4563966584619 12.9132836715865 397766.97743175 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
1986-Apr-27 18:13 3_02:22 Earth 0.372443051271735 0.312439998102028 0.432488322304004 15.70613024973 15.7056747484689 2446548.259277238 4462.39158380321 2999686.89680364 3.22333233396985 -3.76466740188372 887739.83206996 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
1986-Nov-01 10:32 5_11:33 Earth 0.409247424378165 0.387991539292817 0.431400322575631 7.01421579827281 7.01328752463437 2446735.938860706 7893.31350758694 1443901.52031099 15.0745191032474 -41.3953055152281 1419150.30942444 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2003-May-09 09:20 3_04:29 Earth 0.176152026133905 0.128490211448555 0.223851229330355 10.1231195635074 10.1216252476581 2452768.888965590 4589.1963861943 2381076.26069952 2.04416463163807 -3.12156943901566 540208.43433589 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2003-Oct-11 11:57 6_14:25 Earth 0.32684764350331 0.303452556626022 0.351482245870481 5.14789604335643 5.14631222984503 2452923.998051060 9505.4092686048 1562921.94319269 21.0285005067731 -39.9256559072679 576576.607836704 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2010-Mar-14 01:34 3_21:19 Earth 0.381203613762683 0.367598925347733 0.394835432600284 5.3377792210231 5.33646959281284 2455269.565597858 5599.13065799725 697770.327188197 27.8291062419719 -13.4803725714871 190578.776705803 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2010-Aug-29 21:07 1_19:17 Earth 0.286988070121831 0.259900917491839 0.314562436621792 12.2566012473086 12.2558437311927 2455438.379932072 2596.91979789547 1485020.19968089 31.8832491080967 23.3005070048109 408028.39271168 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2013-Nov-18 17:23 1_12:03 Earth 0.474971251014403 0.46914404480534 0.480853222941955 8.17254959056558 8.17186314562543 2456615.224573015 2163.12013300349 387196.515886401 14.3821314771419 -41.0689030386237 2339955.07517909 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2020-May-28 08:59 < 00:01 Earth 0.00608031726140043 0.00607381416834006 0.00608681996260695 5.53765065303217 5.45794347915996 2458997.874145498 0.106228466999228 314.867804255246 1.22474779556765 -0.09594281340411 1562.60734126102 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2020-May-28 09:01 < 00:01 Moon 0.00616723995467375 0.00616129941451909 0.00617318158143713 6.37872928437877 6.37789613645318 2458997.875454357 0.0779402392598711 323.163877807314 1.23613769375258 -23.5774213964439 247378.352265344 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2021-Jan-06 02:17 08:38 Mars 0.0346805227379092 0.0346058474593425 0.0347613995841109 3.00447251680742 3.00172366685804 2459220.595190175 517.719513395768 23462.9447172638 64.4275844083062 80.4449935863057 84114.7959301681 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2040-Aug-10 00:16 1_20:14 Earth 0.120860307372546 0.115893400419845 0.126454370113059 6.34340083295527 6.33992446669139 2466376.510817458 2654.09953626252 508097.982130462 33.6095584599886 58.7353237223448 373556.955208667 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2043-Nov-19 18:44 1_17:06 Earth 0.490519937591212 0.485713368258579 0.495392527368958 8.30808648099977 8.30743264056678 2467573.280809076 2465.53839328819 372527.443290388 8.1927877446469 -49.627905391731 5156699.42593705 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2050-Mar-15 01:29 6_02:09 Earth 0.386754064093935 0.36393700771418 0.409633597607777 5.38779484375592 5.38651599859218 2469880.561523029 8769.20863999644 1165428.93057308 34.2856265144499 -12.3223095648928 149709.364817406 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2050-Aug-30 13:34 2_17:48 Earth 0.288226180793749 0.244729057446501 0.332917560769882 12.4702791341339 12.4695377971545 2470049.065523391 3948.03994377704 2385706.74614174 36.3811187142784 22.5589191594222 354099.230969974 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2053-Apr-26 01:10 2_14:39 Earth 0.406574557043013 0.351061241850222 0.462115001864095 16.7653768092853 16.7649859108758 2471018.548557494 3758.57212254096 2773849.62161285 4.42650237118691 -3.42205401140563 664085.880572765 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2053-Nov-03 11:27 4_23:09 Earth 0.428967346990961 0.410156594002128 0.448429224626736 7.23740485784964 7.23654657386952 2471209.976806980 7149.18478699919 1267074.81655233 14.1315097135766 -41.1080399111371 1446631.93733258 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2060-Feb-22 21:10 6_11:26 Earth 0.464901976088324 0.441319701800681 0.488512811407396 7.10068732197386 7.09988013292519 2473512.382250864 9326.1133235429 1190614.00557987 43.1190901633156 -8.87841409261065 125899.681311907 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2060-Sep-09 19:27 3_11:29 Earth 0.476988314275865 0.407521392250638 0.547033410086253 18.2591597998061 18.2588538660025 2473712.310144863 5008.64488618182 3575695.3841218 37.7527267436153 13.2528511672361 359225.809396989 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2063-May-07 09:27 4_17:07 Earth 0.208892769802706 0.129855632802652 0.288009626424198 11.123147942925 11.122001153649 2474681.893915291 6786.90895196949 3948498.0843969 2.2502454254347 -2.86229632545965 532473.367649258 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2063-Oct-15 05:02 9_21:02 Earth 0.347504192608554 0.311192344563766 0.38645016981197 5.52241028357939 5.521021680117 2474842.709637671 14221.7330761163 2408713.62359814 22.9373980776543 -38.6166245533411 550866.650237641 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2093-May-07 23:44 8_19:41 Earth 0.195952093508958 0.0517421742940035 0.340636673412948 10.7530758535687 10.7518112474529 2485640.488973725 12700.9691381751 7219043.67309156 2.04074125875407 -2.72801699372081 530692.755670363 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2100-Feb-26 00:43 2_03:54 Earth 0.449893390415113 0.438552892873099 0.461233728388519 6.83112645227982 6.83025941458019 2488125.529579133 3113.64710777297 565342.909737099 43.2267499723353 0.299159503688608 4142.03433823704 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2100-Sep-09 23:08 1_01:29 Earth 0.441783225451753 0.411480203646045 0.472257208920709 17.1878659054036 17.187515003591 2488321.463685713 1528.81955719217 1576109.72225334 37.8060142795638 15.9281244373381 394281.887705806 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2103-May-01 06:12 5_09:44 Earth 0.34377801501924 0.245954888987701 0.441693154312235 14.9792922290849 14.9787748004436 2489284.758551003 7784.08842017933 4888390.60713675 3.5818075523095 -3.20018616939379 633460.10900182 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2180-Sep-03 02:43 9_03:50 Earth 0.306995553621031 0.197933347543794 0.421371188630282 13.0866597841368 13.0859965567302 2517534.612922955 13190.2785691715 5925330.78372943 41.3747098050639 18.5109002076663 276423.915776877 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2183-Apr-29 03:55 5_01:06 Earth 0.399188710257226 0.341233724196169 0.457261195381293 16.5716002813746 16.5711974948475 2518502.663164772 7265.62118447072 2913001.01604614 13.1966343026972 -6.67792015186568 425083.388512467 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2183-Nov-05 20:46 2_07:20 Earth 0.425812947136974 0.403014682019004 0.44895329347067 7.19129408477082 7.1904238975085 2518693.365244293 3319.86098986587 1293921.46609825 31.5993960722558 -27.704224490252 629809.291539197 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2190-Sep-11 13:56 2_10:09 Earth 0.450205661520852 0.361148376733671 0.540956713253446 17.4698959051313 17.4695571270545 2521195.080749505 3488.57808763818 4690060.39244288 30.560227902109 16.7336204377481 523952.929643236 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
2193-May-06 15:13 6_14:00 Earth 0.249540217768146 0.0939018772903134 0.405256439705082 12.2975204441524 12.2966521445817 2522163.133727979 9479.5927263744 7766108.62880706 2.18763240124737 -1.46304424584496 351612.644659361 T 4 CATAB v2.0f-lin.ifort 2020-Jun-14 06:30:22 2020-Jun-14 06:30
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