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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .104767789535467 5.2777e-08  
a 3.20701893883684 2.8952e-08 au
q 2.871026653616525 1.7084e-07 au
i 3.89317549180773 5.3492e-06 deg
node 236.386097670258 7.1873e-05 deg
peri 324.471784234054 7.5142e-05 deg
M 15.62722528319192 2.287e-05 deg
tp 2458509.439488374956
(2019-Jan-25.93948838)
0.00013301 TDB
period 2097.7354322955
5.74
2.8406e-05
7.777e-08
d
yr
n .1716136336630692 2.3239e-09 deg/d
Q 3.543011224057155 3.1985e-08 au
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      9276 days (25.40 yr)  
   first obs. used      1993-12-17  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55509  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:34  

Additional Information
 Earth MOID = 1.86946 au 
 Jupiter MOID = 1.43839 au 
 T_jup = 3.180 
[ 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 17:07 00:05 Jupiter 1.97391787107969 1.97391496968904 1.9739207724708 3.74703344432447 3.63070862034513 2430418.213115370 4.89357962870134 154.397629393454 42.0789919884417 36.8247597478683 1323677.57684579 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
1953-Apr-09 01:26 00:04 Jupiter 1.73648352428684 1.73648126003177 1.73648578854585 2.87329542363723 2.69819679059766 2434476.559461064 4.18893441759967 185.039427300585 25.3694398596307 66.64841738534 2018591.01838322 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
1964-Jun-08 07:05 00:03 Jupiter 1.56546443516102 1.56546317749873 1.5654656928275 2.19848900100719 1.93680616916757 2438554.795192352 3.24431483094221 178.510163378542 25.3125155277789 -89.353496226247 1756714.30558727 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
1975-Aug-30 16:36 00:02 Jupiter 1.49154017491868 1.4915396097401 1.49154074009702 1.77731558880703 1.42235078068701 2442655.191948075 2.30841353471223 136.535356308698 75.3882966028812 -69.4656290735623 1429287.1728667 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
1986-Nov-24 08:12 00:02 Jupiter 1.52046570898897 1.52046517538457 1.52046624259328 1.67659475346582 1.30261583836479 2446758.841780709 1.54174289392515 106.980038708463 67.7964951242522 79.1148143464891 1914389.62920035 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
1998-Feb-02 10:32 < 00:01 Jupiter 1.64154536546424 1.64154481728006 1.64154591364861 2.04038498427446 1.76951660881442 2450846.938937669 0.908983505939597 71.1304152796174 18.817879305135 -85.0785261975795 2245944.67173953 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
2009-Mar-22 02:06 < 00:01 Jupiter 1.83300193245761 1.8330014388249 1.83300242609033 2.85668755601056 2.69006917555753 2454912.587485131 0.417189815354062 58.0948733602001 14.9340180054127 -81.9245684601203 2866435.18756269 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
2120-May-16 11:14 00:04 Jupiter 1.96760024555696 1.9675979517787 1.96760253933454 3.56370378404741 3.44078690625993 2495509.968207963 3.64965366277998 102.748679401685 51.0541895194486 21.132742790325 966093.770853445 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
2131-Jun-29 11:53 00:04 Jupiter 1.72652807210945 1.72652583265894 1.72653031156202 2.78243777005953 2.60014884691609 2499570.995065279 3.95924530976742 159.470715198743 29.7086442220402 63.3927147699444 1751743.92844488 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
2142-Sep-02 16:11 00:04 Jupiter 1.55355287680441 1.55355132533285 1.5535544282848 2.22645725654127 1.96638732285369 2503654.174085177 4.19591999816471 234.592943538765 25.6603056211469 87.7680691967745 1882390.77484124 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
2153-Nov-29 09:47 00:05 Jupiter 1.48128817982399 1.48128761289502 1.48128874675541 1.89101809376703 1.55958963044749 2507759.907367423 4.67779751354379 269.484246083106 56.5011912259376 -75.2302649692882 1598483.75726694 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
2165-Feb-26 08:15 00:06 Jupiter 1.51594044517191 1.51593899112788 1.51594189922525 1.79491325757373 1.45059496426708 2511866.843802169 5.71451166268723 246.204372323982 58.4861425921658 -80.425513395034 1871895.68186458 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
2176-May-05 20:11 00:07 Jupiter 1.64543326639239 1.64543012942879 1.64543640336937 2.0994119316741 1.8379300898183 2515953.341282879 7.11616104919517 322.954383005786 13.1826466778652 -87.0378929829395 1952639.1940502 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54
2187-Jun-18 03:17 00:08 Jupiter 1.8452800568985 1.84527569236721 1.84528442143105 2.90909915216301 2.74678277990042 2520013.636670145 8.21649562695314 243.800527100173 25.1378437986124 -55.916185237893 1236471.29606203 T 15 CATAB v2.0e-lin.ifort 2019-May-30 06:54:39 2019-May-30 06:54

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