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447242 (2005 UK204)
Classification: Main-belt Asteroid          SPK-ID: 2447242
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2088048830630614 6.9922e-08  
a 2.979870905247496 3.2837e-08 au
q 2.357659309334273 2.2446e-07 au
i 11.20990928216171 9.7956e-06 deg
node 223.2729566795223 4.6896e-05 deg
peri 207.2757824446696 6.3965e-05 deg
M 285.1760686480528 4.2416e-05 deg
tp 2459391.010417417844
(2021-Jun-25.51041742)
0.00022506 TDB
period 1878.86078331228
5.14
3.1057e-05
8.503e-08
d
yr
n .1916054681631861 3.1672e-09 deg/d
Q 3.602082501160718 3.9694e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      5501 days (15.06 yr)  
   first obs. used      2005-10-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54766  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:29:11  

Additional Information
 Earth MOID = 1.37751 au 
 Jupiter MOID = 1.76475 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458016.5 (2017-Sep-20.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .206559150806006 7.2769e-08  
q 2.36823213918083 2.3522e-07 au
tp 2457497.455337447949
(2016-Apr-18.95533745)
0.00021352 TDB
node 223.4510341828826 4.6608e-05 deg
peri 205.5139170322558 6.478e-05 deg
i 11.23420344284056 9.8824e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      5501 days (15.06 yr)  
   first obs. used      2005-10-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54766  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:29:11  

Additional Information
 Jupiter MOID = 1.76475 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.295396759956477E-15 -1.703529528850782E-14 -9.013683416226689E-12 -1.081451766377762E-13 -1.673700369803636E-12 -7.531147357954587E-15
q -1.703529528850782E-14 5.532967593625833E-14 3.080310972248352E-11 3.638945197193491E-13 5.820932255433939E-12 2.685826265116697E-14
tp -9.013683416226689E-12 3.080310972248352E-11 4.558956800793095E-8 4.168396256943631E-10 9.718561512063412E-9 3.40662420809694E-11
node -1.081451766377762E-13 3.638945197193491E-13 4.168396256943631E-10 2.172259622310741E-9 -2.038582857444909E-9 -3.316264211166218E-10
peri -1.673700369803636E-12 5.820932255433939E-12 9.718561512063412E-9 -2.038582857444909E-9 4.196459294208582E-9 3.326023542577113E-10
i -7.531147357954587E-15 2.685826265116697E-14 3.40662420809694E-11 -3.316264211166218E-10 3.326023542577113E-10 9.766207274499024E-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 16.8   n/a MPO397617  

447242 (2005 UK204)          Discovered 2005-Oct-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

[ 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
1900-Sep-08 06:51 00:06 Jupiter 1.75622853079486 1.75622766093788 1.75622940067629 2.853488788294 2.67914271220779 2415270.785614367 5.92188017451866 636.947409362942 32.8288780386765 -85.8641030298015 1203230.81311182 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29
1937-Feb-02 04:00 00:05 Jupiter 1.87195390754434 1.87195122743263 1.87195658767393 2.335512911025 2.13299312945851 2428566.666480157 4.77767014080453 448.375508605175 111.687868344691 72.3638443703072 1589076.12784723 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29
1982-May-01 18:39 00:02 Jupiter 1.99802223108985 1.99801970217499 1.99802476001097 3.37590517116517 3.24790313469704 2445091.277007284 2.19556397643339 246.522517380069 47.2215441292772 64.2603794922699 1004669.34659852 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29
2018-Sep-12 01:39 < 00:01 Jupiter 1.80443669412339 1.80443563379608 1.80443775445244 3.1014804100774 2.94624483747326 2458373.569084089 0.768807544855628 240.69123346077 33.230682626603 82.9193863542004 1312345.77091807 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29
2055-Jan-19 10:24 00:02 Jupiter 1.77188905512135 1.7718880724503 1.77189003779744 2.68572121601368 2.50140585203875 2471651.933163729 1.80821424446119 248.15244618523 41.5865236375903 -84.9457635474265 1906168.48697914 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29
2091-Jun-26 07:39 00:04 Jupiter 1.88828310420248 1.88828106801815 1.88828514040956 2.05099273045216 1.81918555702975 2484958.818846966 4.09174621175304 519.530404185411 98.0267214415806 76.4105929678987 1239704.59439754 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29
2136-Sep-09 21:32 00:06 Jupiter 1.97503092033441 1.9750278794028 1.97503396131743 3.38504298591607 3.25588469163335 2501470.397462035 5.73165207700039 578.165473293386 48.2365535591493 76.3900523253086 1199822.31081862 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29
2173-Jan-22 01:58 00:07 Jupiter 1.79719836402598 1.79719678731058 1.79719994084251 3.00182848481214 2.840487809358 2514753.581778050 7.29813889465393 825.019071738978 29.1621594349427 86.7012426551343 1237621.77063419 T 10 CATAB v2.0f-lin.ifort 2020-Dec-18 01:29:12 2020-Dec-18 01:29

Alternate Designations
 2005 UK204 = 2010 UR39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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