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85713 (1998 SS49)
Classification: Apollo [NEO, PHA]          SPK-ID: 2085713
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 171 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6392806864422543 3.9854e-08  
a 1.923493652477713 3.1412e-09 au
q .6938413099544417 7.6786e-08 au
i 10.76429299677127 4.6087e-06 deg
node 41.49015309318185 1.917e-05 deg
peri 102.448096370055 1.9431e-05 deg
M 221.450255452451 3.3116e-06 deg
tp 2458975.505633292198
(2020-May-06.00563329)
9.5545e-06 TDB
period 974.3939148069667
2.67
2.3869e-06
6.535e-09
d
yr
n .3694604353838952 9.0503e-10 deg/d
Q 3.153145995000985 5.1493e-09 au
  Orbit Determination Parameters
   # obs. used (total)      656  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      7740 days (21.19 yr)  
   first obs. used      1998-09-29  
   last obs. used      2019-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50364  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-09 05:13:37  

Additional Information
 Earth MOID = .00272183 au 
 Jupiter MOID = 1.98894 au 
 T_jup = 3.624 
[ 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 15.6   n/a MPO344892  
diameter diameter 3.484 km 0.789 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 5.370 h n/a LCDB (Rev. 2019-January); 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:
[Warner, B.D. (2015) Minor Planet Bull. 42, 41-53.]
[Vaduvescu, O.; Aznar Macias, A.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]
geometric albedo albedo 0.076   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

85713 (1998 SS49)          Discovered 1998-Sep-29 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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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
1902-Nov-26 22:53 < 00:01 Earth 0.0659933596532234 0.0659930702255751 0.0659936490980488 17.8810990176867 17.8788409064416 2416080.453617158 0.127371092972732 75.8514072684857 10.1194350155912 82.1299434873598 975418.413064083 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1910-Nov-20 15:34 < 00:01 Earth 0.12658014638684 0.126578719670181 0.12658157310896 21.2344001134803 21.2334087865498 2418996.148386510 0.116361500725289 82.560359315593 10.071909425426 -30.7445580892041 953970.30465908 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1918-Nov-16 00:02 < 00:01 Earth 0.215154190901913 0.215152676298561 0.215155705506242 23.986131275569 23.985614969756 2421913.501235839 0.101544177844338 78.9757598933431 10.0512396612417 -17.1400253897165 981050.350405383 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1926-Nov-10 20:17 < 00:01 Earth 0.313025627336553 0.313024235904658 0.313027018768661 27.0313687154181 27.0310538195549 2424830.345248700 0.0828351607974967 70.5609951576356 10.0431821941438 -10.5860682241881 1031392.45527146 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1934-Nov-04 17:04 < 00:01 Earth 0.44107801400173 0.441076856486899 0.441079171516611 30.8802337028699 30.8800380808479 2427746.211202792 0.0605849653920629 58.0677451159555 10.0596852281231 -6.36735747427074 1290006.27258419 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1940-May-05 08:43 < 00:01 Venus 0.119711510941254 0.119711050833318 0.119711971050592 18.0725562340217 18.0715524841354 2429754.863036156 0.0925915376550746 30.8739732421824 3.39870687300817 -42.320277602522 3158414.04190815 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1948-May-02 04:52 < 00:01 Venus 0.0917780900813332 0.0917777732613876 0.0917784069025257 16.4390275079146 16.4375881366735 2432673.702867206 0.0844919468244735 24.3627347839871 6.53941953636568 -52.2121908766391 1623680.66669564 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1948-May-27 21:19 < 00:01 Earth 0.479241018795849 0.479240656444831 0.479241381146868 31.7429943371198 31.7428191864992 2432699.388370699 0.0490662583798242 18.1838151283363 11.5936492777048 -8.37791376795852 3844349.71303036 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1956-Apr-29 11:07 < 00:01 Venus 0.0706490180800035 0.0706485432020947 0.0706494929625909 15.2101992245861 15.2081782690156 2435592.963091077 0.112765780692784 38.8345861172762 8.60787418281899 -54.3740733606299 1007740.6898873 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1956-May-26 03:59 < 00:01 Earth 0.436430859101979 0.43643011926809 0.436431598935868 30.5951854754924 30.5949859284792 2435619.665792456 0.0575191264053058 36.9499899919919 11.17412844535 3.35829820915148 1718262.33478103 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1964-Apr-30 08:14 < 00:01 Venus 0.0913094365904038 0.0913084058819709 0.0913104673052519 16.4073827618873 16.4059332120294 2438515.843043244 0.142287633384133 64.3492192847534 8.57363566244889 -37.3851815449048 954112.988961052 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1964-May-26 09:36 < 00:01 Earth 0.448729614796801 0.448728450968617 0.448730778624985 30.8460730405065 30.8458805412322 2438541.899770041 0.0815291325998638 58.0586053268433 11.125173129776 1.66053971346955 1116690.14799217 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1974-Nov-04 10:37 < 00:01 Earth 0.458392294271741 0.458391001086714 0.458393587456794 31.3645367006594 31.3643513741889 2442355.942531113 0.0865136778968897 64.8647864710159 10.1893898577593 -6.27658045804955 1225503.39582007 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1982-Nov-06 10:38 < 00:01 Earth 0.419616401392754 0.419615217755789 0.419617585029766 30.180835426851 30.1806250343974 2445279.942963874 0.0807242849084822 59.5139101720125 10.1882080443464 -7.47625035538396 1257961.05080596 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1990-Nov-09 11:03 < 00:01 Earth 0.361027482551301 0.361026506460278 0.361028458642407 28.3754892586002 28.3752291643655 2448204.960682129 0.0684387826474178 49.3500141897246 10.1984288881932 -9.71027647541316 1337116.14624729 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
1998-Nov-14 19:36 < 00:01 Earth 0.25732227737842 0.257321591654385 0.257322963102572 25.2135209650038 25.2131102836264 2451132.316394905 0.0527550653777148 35.4374343823867 10.2479818556709 -15.9201167391189 1406379.08762759 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2006-Nov-16 22:45 < 00:01 Earth 0.217502235082867 0.217501871161616 0.217502599004168 23.9699165739676 23.9694054964932 2454056.447913421 0.0371835653109853 19.2378471187492 10.2195502631064 -23.0656858053779 1926012.07009219 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2014-Nov-18 09:38 < 00:01 Earth 0.189815128160727 0.189815063562586 0.189815192758867 23.1015766133755 23.100968974396 2456979.901515761 0.0329490308615426 11.0501471123872 3.21798754102694 89.202404504896 9887505.21989047 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2021-Oct-08 13:56 < 00:01 Jupiter 1.9902608772606 1.99026049169898 1.99026126282245 3.53300613002035 3.41042006025884 2459496.080419160 0.0892700452438738 37.823283065666 14.9929053803818 -62.5223968096376 6110504.25401178 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2022-Nov-21 17:11 < 00:01 Earth 0.141373694541567 0.141373394174025 0.141373994909383 21.3642392418213 21.3633570454171 2459905.216098534 0.0476697272217194 19.5774747286384 9.58045902431335 -47.5972395615162 1731965.65595915 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2030-Nov-22 20:11 < 00:01 Earth 0.125378181205554 0.125377653800881 0.125378708611823 20.764774324494 20.7637508574122 2462828.341114796 0.0685530403687291 35.6692558603916 9.9641219135718 -44.7144528190971 1336838.04058932 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2038-Nov-21 18:05 < 00:01 Earth 0.137906687466906 0.137905918147624 0.137907456788609 21.3037763979748 21.3028694556303 2465749.253744795 0.0853214502512904 48.6003439897171 9.96888800152054 -38.8509665253507 1297063.03673164 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2046-Nov-21 09:00 < 00:01 Earth 0.154701312056617 0.154700392576049 0.154702231539701 21.7262792006261 21.7254864420903 2468670.874806089 0.0943669754638068 55.8374135657033 9.92767159164328 -35.4488812264746 1344281.78848682 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2054-Nov-20 15:12 < 00:01 Earth 0.167501057293922 0.167500072505688 0.167502042084365 22.1666339180624 22.1659162855849 2471592.133093201 0.0956010770949903 58.0580171327423 9.83450690564314 -32.7715474013888 1373223.59676232 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2062-Nov-17 13:24 < 00:01 Earth 0.216406850841936 0.216405868682603 0.21640783300224 23.8510480393204 23.8505318148537 2474511.058210455 0.0869504626552576 54.1937220695213 9.67510364985356 -25.7931469383767 1486881.02710586 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2070-Nov-14 15:57 < 00:01 Earth 0.282968776824869 0.282967922242086 0.282969631408037 25.7780875545886 25.7777222743129 2477430.164684879 0.0729873144830681 45.8012569745081 9.4094183545065 -21.9931161139684 1804238.17124757 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2078-Nov-12 20:06 < 00:01 Earth 0.319509266785948 0.31950859753398 0.319509936038133 26.9063371692788 26.9060272298564 2480350.337186836 0.0570941583773175 36.0231099943924 8.91385191468121 -22.8654850463898 2314336.28159638 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2086-Nov-09 09:46 < 00:01 Earth 0.382394499390902 0.382394012974038 0.382394985807896 28.9376109941108 28.9373702033311 2483268.906962791 0.0411521092918256 26.804344691164 7.92211890461516 -26.4557142703918 3633400.15578176 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2094-Nov-05 08:47 < 00:01 Earth 0.473176851495868 0.473176451774657 0.473177251217133 31.6033773374088 31.6031991583772 2486186.865860733 0.0306497370434166 22.4052761691732 7.36833437362712 -28.9194069610798 5363869.67926276 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2108-May-29 19:18 < 00:01 Earth 0.46475329303542 0.464752717822822 0.464753868248044 31.342254662953 31.3420717430706 2491140.304489962 0.0402855150610966 28.8610946788851 11.3964751825352 6.92619821073959 2407304.10565993 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2116-May-25 07:41 < 00:01 Earth 0.373481979609681 0.373481248584406 0.373482710634978 28.7303688461616 28.7301205309186 2494057.819864121 0.056265816108181 36.5682715484483 11.3211177211474 4.78478733057729 1508417.28591782 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2124-May-22 08:31 < 00:01 Earth 0.320589660606254 0.320588778854319 0.320590542358207 27.1431368682447 27.1428306681942 2496976.855105879 0.0721106887274674 44.066116064507 11.2593607777226 3.93370536999085 1072489.16359092 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2132-May-20 20:35 < 00:01 Earth 0.288125466231859 0.288124469259001 0.288126463204733 26.2293442656085 26.2289916949256 2499897.357781320 0.0835439747168235 49.8651664547353 11.2322186639853 4.57142285001876 871150.7687253 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2140-May-18 06:44 < 00:01 Earth 0.235015959612777 0.235014922497347 0.235016996728261 24.746444438403 24.7459862899622 2502816.780709715 0.0891387276342339 52.0002742960206 11.0604682432129 6.13212732074931 718151.874517885 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2148-May-16 16:09 < 00:01 Earth 0.208818338165689 0.208817422494408 0.208819253837031 23.9350069515034 23.9344738437484 2505737.173005906 0.0831277300734008 46.038182733799 10.8986636712859 7.56202944990564 735790.748159861 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2156-May-18 07:35 < 00:01 Earth 0.239788150059951 0.239787490971168 0.239788809148788 24.7870829280433 24.7866346338153 2508660.815885481 0.0659396450652925 33.3834654237481 10.6631460901021 10.66842785291 1165976.78674527 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2164-May-20 06:14 < 00:01 Earth 0.270629521914806 0.270629126059913 0.270629917769776 25.7291230116561 25.7287403495718 2511584.759682073 0.0489380910034452 21.330401298668 8.9889349652503 24.6999756463299 2414334.41672897 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2172-May-21 11:47 < 00:01 Earth 0.295629934165609 0.295629615084489 0.295630253246829 26.4163175277826 26.4159763392088 2514507.991040952 0.0422011413369157 18.6110715898821 7.19130775409592 34.2236256169413 3759175.58561998 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2180-May-25 07:25 < 00:01 Earth 0.373471257835153 0.373470703264658 0.373471812405669 28.5943358107381 28.5940863070016 2517433.808772165 0.0518174848815116 28.2734113098016 10.5023940668755 12.956484717384 2155121.14400986 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
2188-May-30 05:42 < 00:01 Earth 0.46159800085643 0.461597142573157 0.46159885913973 31.231976911365 31.2317920908196 2520360.737532221 0.0685432101616307 42.9993006409318 11.4842909583627 5.7429506809013 1627742.23026167 T 171 CATAB v2.0f-lin.ifort 2019-Dec-09 05:13:52 2019-Dec-09 05:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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