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(2018 RB2)
Classification: Apollo [NEO]          SPK-ID: 3827318
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3256101291132658 0.00014414  
a 1.378405884166058 0.0002571 au
q .9295829662522626 2.5304e-05 au
i 9.21673436775729 0.0030491 deg
node 342.8726412370404 3.441e-05 deg
peri 312.2133319662767 0.00051781 deg
M 49.91321994512808 0.11687 deg
tp 2458918.544672304759
(2020-Mar-10.04467230)
0.16896 TDB
period 591.1042806439217
1.62
0.16538
0.0004528
d
yr
n .6090295939116406 0.00017039 deg/d
Q 1.827228802079853 0.00034081 au
  Orbit Determination Parameters
   # obs. used (total)      58  
   data-arc span      9 days  
   first obs. used      2018-09-07  
   last obs. used      2018-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .40345  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-30 06:02:22  

Additional Information
 Earth MOID = .00212812 au 
 Jupiter MOID = 3.4054 au 
 T_jup = 4.736 
[ 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 27.3   .29342 MPO452097 autocmod 2.6n

[ 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
1929-May-08 20:34 8_08:58 Earth 0.199881650918532 0.159054813212714 0.313269923514005 11.5584019965918 11.5572486407955 2425740.356786174 12058.2782000618 7421895.46294327 31.5870123192317 52.7336207312839 412149.968421277 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
1937-Apr-25 12:18 9_02:57 Earth 0.40865241229909 0.256703766989477 0.57213517437795 19.0120113221368 19.0116683695029 2428649.012735541 13136.6436881453 8582305.24018641 61.0278474573026 21.6757768871882 293392.717075017 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
1983-Sep-21 21:41 4_03:03 Earth 0.220529467637454 0.145624596703084 0.29545918173906 14.9153939745969 14.9145839041433 2445599.403375128 5942.84214306236 3737645.48870473 8.16849388024053 -1.76794808196255 113192.98528928 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2007-Apr-26 06:39 2_18:13 Earth 0.412638635889506 0.359178202900777 0.467241870453607 19.103315348174 19.1029773319351 2454216.777384853 3973.15347397446 2903953.57495788 61.3526004559306 21.7076322831297 294542.018539376 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2010-Sep-29 02:21 2_03:39 Earth 0.357771521815325 0.315034256980247 0.400514297669947 18.7558883977678 18.7554913218524 2455468.598007136 3098.91256576234 2132421.93977397 10.4099230509929 -1.90779753849884 155471.886357155 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2018-Apr-11 03:54 01:17 Earth 0.394153560125239 0.393707568944664 0.394599621514772 6.44310682244157 6.44205755321566 2458219.662204608 77.4551146498571 23738.5461956354 260.919462693682 20.4699294285726 55388.528874176 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2018-Sep-05 13:53 < 00:01 Moon 0.00615638356657693 0.00615215497295549 0.00616061219078398 10.0379294264684 10.0373990790783 2458367.078157629 0.15645093611277 211.971191158826 2.49915480667955 -5.94427543486822 35425.7131436868 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2018-Sep-05 15:37 < 00:01 Earth 0.00378338658891968 0.00377915383904922 0.00378761918906601 9.21250450028031 9.13573881313321 2458367.150831658 0.106284064475583 207.673862706614 1.91740356896927 1.7085930452059 1727.88307280382 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2039-Sep-23 14:20 6_09:44 Earth 0.239350515562428 0.125526318613786 0.353262236520737 15.4283500795856 15.4276285258817 2466055.097241867 9224.00751409863 5682720.45259004 7.87592923387162 -2.0895686979952 151530.824626435 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2044-May-02 06:16 6_16:36 Earth 0.348364834417111 0.237552522608446 0.471440651668363 16.9432800271535 16.9428286013862 2467737.761421394 9635.77946270971 6687573.60979519 54.9259015571422 27.4627101559278 331215.237006571 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2060-Oct-03 14:50 5_20:48 Earth 0.444638803902253 0.325519110569394 0.56380184687273 21.246625066207 21.2463430215194 2473736.118075624 8447.6174618874 5945130.80955397 10.8038038906276 -2.05883287329743 201895.273815829 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2065-May-13 01:18 6_03:23 Earth 0.204878702770536 0.166412745234401 0.272612451422596 11.5249976476927 11.5238691622569 2475418.553930386 8843.13290237244 4738719.18307292 36.5333645547808 53.2312012711809 399036.405542204 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2073-Apr-10 08:38 4_16:42 Earth 0.423113683361426 0.398086268679953 0.449238456276865 6.78191245751739 6.78098384862002 2478307.859383373 6762.20885567958 1667945.26883167 64.404018207641 -40.0620031427675 415335.955263494 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2073-Sep-10 13:26 3_16:25 Earth 0.0508950339255842 0.00966138213512778 0.0921525137877058 10.3343440751891 10.329276963049 2478461.059974921 5304.92468139453 2057482.17755112 2.48275912223908 -1.27172665711031 61896.4096048069 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2077-Dec-06 10:40 1_03:29 Mars 0.0534105126918054 0.039018415212367 0.0681431884849051 7.31001646723527 7.30928316523733 2480008.944242153 1649.19645032657 756721.991182717 118.873383239352 15.7059910380797 17805.1435910759 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
2112-Apr-27 20:48 9_00:10 Earth 0.467202774890124 0.285670613496071 0.660355606447335 20.7119442985132 20.7116689460534 2492569.366412430 12969.882407519 10042787.54643 70.9300977015915 19.6486659387055 271954.796061583 T 10 CATAB v2.0f-lin.ifort 2020-Jun-30 06:02:28 2020-Jun-30 06:02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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