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12889 (1998 QW42)
Classification: Main-belt Asteroid          SPK-ID: 2012889
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1275924818594101 3.5263e-08  
a 3.108174043880405 1.7693e-08 au
q 2.711594403570705 1.095e-07 au
i 1.587488045325228 4.1011e-06 deg
node 205.0938390583706 0.00013655 deg
peri 7.415675988689054 0.00013741 deg
M 105.8853207014261 1.6447e-05 deg
tp 2458411.805909190014
(2018-Oct-20.30590919)
8.9706e-05 TDB
period 2001.503808910319
5.48
1.709e-05
4.679e-08
d
yr
n .1798647588864671 1.5358e-09 deg/d
Q 3.504753684190105 1.995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1868  
   data-arc span      11147 days (30.52 yr)  
   first obs. used      1990-01-24  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48716  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:37:51  

Additional Information
 Earth MOID = 1.7056 au 
 Jupiter MOID = 1.46185 au 
 T_jup = 3.207 
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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 13.0   n/a MPO347627  
rotation period rot_per 5.363 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

12889 (1998 QW42)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

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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
1917-May-16 21:47 00:03 Jupiter 1.56679930344615 1.5667980526404 1.56680055425208 1.72507638361788 1.37647184041812 2421365.407421222 2.81412272486726 150.063779877718 45.7352434424948 -60.1240513569092 1901002.20378254 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
1927-May-20 12:26 00:03 Jupiter 1.61529917874866 1.61529800048654 1.61530035701298 1.83398239080842 1.52142742144027 2425021.017803334 2.53294648347928 161.491259908494 27.661115061393 73.9273267974511 2303660.07548644 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
1989-Feb-05 14:48 < 00:01 Jupiter 1.68324305800016 1.6832424530386 1.68324366296143 2.09840081492265 1.8430595817503 2447563.116825391 0.773117385360135 49.1932608621577 11.2322179775625 87.5245773438097 2179664.94060415 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
1999-Feb-13 02:39 < 00:01 Jupiter 1.51660786096274 1.5166074711767 1.51660825074835 1.52286308238177 1.0964104570378 2451222.610554351 0.468808189136359 121.988099947999 70.1655533671626 32.4400167390411 2180429.46177967 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
2060-Oct-21 04:33 00:01 Jupiter 1.82780589105108 1.82780511683651 1.82780666526545 2.57709858626848 2.39052676848928 2473753.689727413 1.29383146525715 43.6961076692898 19.4118438113602 78.703290815287 1939174.92381518 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
2070-Oct-31 14:46 00:02 Jupiter 1.47437282287698 1.47437243546661 1.47437321028667 1.42619635409268 0.940766908745655 2477416.114975442 1.64103683980038 191.684664125663 105.540555255828 16.0366051406643 1970784.74345601 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
2080-Nov-05 06:42 00:02 Jupiter 1.86794096667876 1.86793974476316 1.86794218859446 2.86865190952824 2.70596725079785 2481073.779212108 1.90904247269973 73.6776179017184 16.1128296497031 -61.013189692224 2074272.40715293 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
2132-Jul-01 23:14 00:03 Jupiter 1.98243493685515 1.98243290184021 1.98243697186918 3.12953136681259 2.98988948724226 2499939.468243774 3.2651077974727 80.6067190542574 36.7064013665348 -21.8486683219917 980251.513959384 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
2142-Jul-18 14:08 00:04 Jupiter 1.4997614042406 1.49976063079547 1.49976217768948 1.51235792031711 1.07595699509013 2503608.088825091 3.76900922975444 228.796625774923 100.751212340184 -52.8270999043786 2019055.42944582 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38
2152-Jul-22 09:46 00:04 Jupiter 1.72602100590565 1.72601868273199 1.72602332908283 2.29408838422836 2.06914652601793 2507264.906878172 4.12198724042956 195.095319453412 2.97112785376037 -82.1540854894183 2248631.15980847 T 34 CATAB v2.0f-lin.ifort 2020-Aug-25 00:38:08 2020-Aug-25 00:38

Alternate Designations
 1998 QW42 = 1990 BX4 = 1993 TK15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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