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117239 (2004 SM18)
Classification: Outer Main-belt Asteroid          SPK-ID: 2117239
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1067748563731253 4.0391e-08  
a 3.211012026359488 2.5573e-08 au
q 2.868156678432576 1.2174e-07 au
i 3.886029391769831 3.9315e-06 deg
node 236.2988748224847 6.1304e-05 deg
peri 324.6220203459005 6.4176e-05 deg
M 83.9679642567875 1.9344e-05 deg
tp 2458510.300968930387
(2019-Jan-26.80096893)
0.0001123 TDB
period 2101.654514874052
5.75
2.5107e-05
6.874e-08
d
yr
n .1712936153169657 2.0463e-09 deg/d
Q 3.5538673742864 2.8304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      9803 days (26.84 yr)  
   first obs. used      1993-12-17  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51921  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:20:13  

Additional Information
 Earth MOID = 1.86628 au 
 Jupiter MOID = 1.42665 au 
 T_jup = 3.179 
[ show covariance matrix ]

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 14.8   n/a MPO436562  
diameter diameter 6.040 km 1.405 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.048   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

117239 (2004 SM18)          Discovered 2004-Sep-17 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1942-Feb-27 17:06 00:05 Jupiter 1.97391742431364 1.97391473420171 1.97392011442591 3.74703223147355 3.63070734188535 2430418.212542776 4.58243224377592 143.017502230746 31.2084857730894 36.1988942472654 1659881.00268697 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
1953-Apr-09 01:25 00:04 Jupiter 1.7364832245591 1.7364810882625 1.73648536085926 2.87329446421437 2.69819573770955 2434476.558969440 3.94723326851431 173.609290228666 19.8318287646631 66.2903397316644 2361481.17629194 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
1964-Jun-08 07:05 00:03 Jupiter 1.56546433719615 1.56546313412315 1.56546554027325 2.19848838285237 1.93680545001144 2438554.794810419 3.07682894530301 169.619633910931 17.9121882476069 -89.0454528737738 2284223.78789963 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
1975-Aug-30 16:36 00:02 Jupiter 1.49154022719187 1.49153974639309 1.49154070799107 1.77731523077208 1.42235034729267 2442655.191659580 2.19855024491766 130.152353885286 53.544583099506 -64.157629069586 1933459.9588304 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
1986-Nov-24 08:12 00:01 Jupiter 1.5204658169331 1.52046541815423 1.52046621571205 1.67659479324978 1.30261591993224 2446758.841535926 1.47389363192074 84.9855244614257 54.084174461883 -87.9500160219863 2513075.63146981 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
1998-Feb-02 10:32 < 00:01 Jupiter 1.64154544127415 1.64154498092 1.64154590162849 2.04038532650395 1.76951701689727 2450846.938786562 0.883058915524811 61.4671070699984 14.0853254083102 -87.1145072776566 2750742.95121509 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
2009-Mar-22 02:06 < 00:01 Jupiter 1.83300193063406 1.83300150854633 1.83300235272179 2.8566878770018 2.69006951625953 2454912.587403847 0.393865080714418 44.9182030694121 12.8034243865525 -84.0949859860542 3194376.30502443 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
2120-May-16 11:15 00:03 Jupiter 1.96760066877669 1.96759876323236 1.96760257432058 3.56370565189961 3.44078886774922 2495509.968634078 3.04893328619338 84.8772409991121 36.6472936315445 18.2869804850459 1198224.77258457 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
2131-Jun-29 11:54 00:03 Jupiter 1.72652850380285 1.72652670324478 1.72653030436259 2.78243939327079 2.60015063110228 2499570.995524631 3.33354997769243 132.357469103208 21.4718618646312 63.3807627060917 2249497.66497461 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
2142-Sep-02 16:11 00:04 Jupiter 1.55355319916532 1.55355202304893 1.55355437528825 2.22645843312146 1.96638871257844 2503654.174574762 3.58463124265832 197.431351778616 18.2133405618828 87.5528212830528 2449831.73227678 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
2153-Nov-29 09:47 00:04 Jupiter 1.48128829491151 1.48128792406503 1.48128866575807 1.8910187029964 1.5595903976303 2507759.907908196 4.07380684139635 225.833241980289 39.9214905775064 -76.3205196569556 2258388.24544946 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
2165-Feb-26 08:16 00:05 Jupiter 1.51594026823201 1.51593887872903 1.51594165774198 1.79491297343435 1.450594567725 2511866.844431803 5.04907844026346 209.593918598573 42.7517601023543 -82.2453092435737 2418927.00202178 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
2176-May-05 20:13 00:06 Jupiter 1.64543275546469 1.64542989710544 1.64543561383377 2.0994101854526 1.83792800819286 2515953.342070779 6.3222788797462 284.555955692863 11.290603374869 -87.5572586903548 2283954.88812649 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20
2187-Jun-18 03:18 00:07 Jupiter 1.84527928540586 1.84527539736668 1.84528317344576 2.90909591728892 2.74677928399878 2520013.637596749 7.30086065375143 214.554880572163 21.8150407544808 -55.6119344085944 1477301.42715737 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 18:20:15 2020-Nov-12 18:20

Alternate Designations
 2004 SM18 = 2002 JZ142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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