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245926 (2006 RU18)
Classification: Main-belt Asteroid          SPK-ID: 2245926
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797732588417305 4.7001e-08  
a 3.155006288338445 2.448e-08 au
q 2.272319897383845 1.4772e-07 au
i 14.99024773806613 6.2249e-06 deg
node 217.8192485192762 2.0607e-05 deg
peri 186.0991076321879 2.3603e-05 deg
M 137.9547433094569 1.2809e-05 deg
tp 2458216.108448496067
(2018-Apr-07.60844850)
6.6579e-05 TDB
period 2046.91010810687
5.60
2.3823e-05
6.522e-08
d
yr
n .175874845980879 2.047e-09 deg/d
Q 4.037692679293044 3.1329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      8960 days (24.53 yr)  
   first obs. used      1995-10-15  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:09:52  

Additional Information
 Earth MOID = 1.28168 au 
 Jupiter MOID = 1.38367 au 
 T_jup = 3.094 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457193.5 (2015-Jun-20.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797740404656515 4.6958e-08  
q 2.272297253810619 1.4746e-07 au
tp 2458216.918224275014
(2018-Apr-08.41822428)
6.6545e-05 TDB
node 217.843192876939 2.0605e-05 deg
peri 186.3692665411074 2.3605e-05 deg
i 14.99116744474276 6.2249e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      8960 days (24.53 yr)  
   first obs. used      1995-10-15  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:09:52  

Additional Information
 Jupiter MOID = 1.38367 au 
 T_jup = 3.094 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.205052733417766E-15 -6.876109377150566E-15 -3.288149489917527E-13 1.674615476721289E-14 -9.599234789352556E-14 -8.97531435525635E-15
q -6.876109377150566E-15 2.174521381011106E-14 1.784814097776215E-12 -4.738894977166077E-14 3.950258364622626E-13 2.891235565693828E-14
tp -3.288149489917527E-13 1.784814097776215E-12 4.428170586590637E-9 2.534162719308579E-11 7.797671160943015E-10 2.346315599478799E-12
node 1.674615476721289E-14 -4.738894977166077E-14 2.534162719308579E-11 4.245579466547612E-10 -4.049535620420279E-10 -2.615463447366491E-11
peri -9.599234789352556E-14 3.950258364622626E-13 7.797671160943015E-10 -4.049535620420279E-10 5.572183778038841E-10 2.561721988015011E-11
i -8.97531435525635E-15 2.891235565693828E-14 2.346315599478799E-12 -2.615463447366491E-11 2.561721988015011E-11 3.87492442965631E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO433611  

245926 (2006 RU18)          Discovered 2006-Sep-14 by NEAT at Palomar
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ 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
1947-Oct-29 23:07 00:03 Jupiter 1.58918621494271 1.58918330711685 1.58918912277977 3.31394578926199 3.14900841249321 2432488.462866566 3.13579500226676 287.540370914137 79.5391538875638 -62.8551342240501 2546224.77016738 T 9 CATAB v2.0f-lin.ifort 2020-May-21 13:10:27 2020-May-21 13:10
1958-Nov-19 09:04 00:02 Jupiter 1.3982371594702 1.39823670686148 1.39823761207988 3.42219988052436 3.24035403891145 2436526.878048981 1.89602317168649 478.657978745027 23.0525310631375 89.4028989050599 2427950.02960336 T 9 CATAB v2.0f-lin.ifort 2020-May-21 13:10:27 2020-May-21 13:10
1969-Dec-07 20:34 00:02 Jupiter 1.65005603998993 1.6500543516045 1.65005772838446 3.32721788198983 3.16918281971017 2440563.356598743 1.64775228795446 268.061250646468 54.0767122583917 74.868632488191 2080211.94848804 T 9 CATAB v2.0f-lin.ifort 2020-May-21 13:10:27 2020-May-21 13:10
2066-Aug-30 20:50 00:02 Jupiter 1.65324250011557 1.65324103358643 1.65324396664781 3.16784869224776 3.00176365334578 2475893.367744000 1.85339825911721 191.649255967867 63.8755203971211 -75.2950788036637 2106901.8224277 T 9 CATAB v2.0f-lin.ifort 2020-May-21 13:10:27 2020-May-21 13:10
2077-Sep-06 00:36 00:02 Jupiter 1.39780375042486 1.39780328125932 1.39780421959326 3.39782369859688 3.21454079164881 2479917.525157675 2.01367355595244 425.930462431088 23.1557829608737 89.2592675706147 2317902.68721924 T 9 CATAB v2.0f-lin.ifort 2020-May-21 13:10:27 2020-May-21 13:10
2088-Sep-29 23:52 00:03 Jupiter 1.59295347178535 1.59295087962874 1.59295606400398 3.38793083644111 3.22716805219887 2483959.494651876 3.02005794607655 547.101861913046 36.9099191782011 76.7791219842905 2178848.41197268 T 9 CATAB v2.0f-lin.ifort 2020-May-21 13:10:27 2020-May-21 13:10
2185-Jun-26 06:45 00:08 Jupiter 1.70899228520955 1.70898614192856 1.70899842851453 2.94857462711321 2.77539881275571 2519291.781538364 7.71266292026434 461.769332898688 112.445979233576 -40.6118131565771 1444130.3510109 T 9 CATAB v2.0f-lin.ifort 2020-May-21 13:10:27 2020-May-21 13:10
2196-Jun-15 09:15 00:06 Jupiter 1.40935075799171 1.40934974976472 1.40935176644277 3.34041284725684 3.15536909790483 2523298.885727406 5.95566469344915 1073.44071188129 27.8125938739469 -87.4504420356559 2230077.78338131 T 9 CATAB v2.0f-lin.ifort 2020-May-21 13:10:27 2020-May-21 13:10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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