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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 174 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .639280686559245 3.9341e-08  
a 1.923493652554151 3.1384e-09 au
q .6938413097569837 7.5793e-08 au
i 10.7642935222356 4.5809e-06 deg
node 41.49015025933392 1.8876e-05 deg
peri 102.4480963066765 1.9148e-05 deg
M 221.4502562954993 3.2604e-06 deg
tp 2458975.505631032715
(2020-May-06.00563103)
9.4191e-06 TDB
period 974.3939148650489
2.67
2.3848e-06
6.529e-09
d
yr
n .3694604353618722 9.0423e-10 deg/d
Q 3.153145995351319 5.1448e-09 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      7768 days (21.27 yr)  
   first obs. used      1998-09-29  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-06 05:41:07  

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 0.0659933688978156 0.0659930813571938 0.0659936564560159 17.8810976735542 17.8788395624557 2416080.453617078 0.127960231936918 76.0535702566718 9.96387871753561 82.1380165380927 990532.572291731 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1910-Nov-20 15:34 < 00:01 Earth 0.126580112752452 0.126578686941608 0.126581538568758 21.2343989610468 21.2334076337991 2418996.148385901 0.116618304828736 82.5114827753714 9.91914509616871 -30.7413262041329 967898.816500687 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1918-Nov-16 00:02 < 00:01 Earth 0.215154164309646 0.215152655393857 0.215155673226414 23.9861304518743 23.9856141459797 2421913.501234549 0.101521058968801 78.6782473817943 9.90093368297926 -17.1345055909177 993956.076698615 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1926-Nov-10 20:17 < 00:01 Earth 0.313025604688128 0.313024223446569 0.313026985929882 27.031368040329 27.0310531444352 2424830.345247288 0.0825909383951206 70.0421082007901 9.89449696856397 -10.5749172228173 1043242.06254583 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1934-Nov-04 17:04 < 00:01 Earth 0.441078003814945 0.44107685895525 0.441079148674665 30.8802334002989 30.8800377782705 2427746.211200057 0.0602365722210087 57.4304678654895 9.91304845633415 -6.34428500511854 1304307.51745208 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1940-May-05 08:43 < 00:01 Venus 0.119711492373996 0.119711036952727 0.119711947796646 18.0725552521284 18.0715515020319 2429754.863033166 0.0917430703593496 30.5874457692861 3.32551595465068 -42.3711621625986 3222808.49151875 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1948-May-02 04:52 < 00:01 Venus 0.0917780702711372 0.0917777503462861 0.0917783901972405 16.4390262137682 16.437586842103 2432673.702863438 0.0840677110779873 24.4407536504255 6.55184669084943 -51.8516041065504 1614124.13666504 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1948-May-27 21:19 < 00:01 Earth 0.47924101533397 0.479240649307531 0.479241381360408 31.7429942602012 31.7428191095789 2432699.388367651 0.0489000192594554 18.3536980521197 11.4943526422801 -7.74276838171163 3802911.56665235 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1956-Apr-29 11:07 < 00:01 Venus 0.0706490039504761 0.0706485267687106 0.0706494811369924 15.2101978913418 15.20817693519 2435592.963086948 0.112966346480391 39.0474448558727 8.53501794551968 -54.3468532485801 1015098.73165546 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1956-May-26 03:59 < 00:01 Earth 0.436430853769821 0.436430110214757 0.436431597324884 30.5951853730448 30.5949858260285 2435619.665788862 0.0576210628950979 37.1329560582868 11.0622609189767 3.26894471405602 1709114.45318443 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1964-Apr-30 08:14 < 00:01 Venus 0.0913094030541795 0.0913083696789554 0.0913104364358707 16.4073806335397 16.4059310829614 2438515.843038252 0.142576866970326 64.5332216049059 8.50200738121233 -37.3973056424234 961656.354380289 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1964-May-26 09:36 < 00:01 Earth 0.448729596242204 0.448728429689427 0.448730762794981 30.8460725491515 30.8458800498662 2438541.899766136 0.0816984260148978 58.1931574685361 11.0158705408967 1.61093274457276 1113650.13567318 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1974-Nov-04 10:37 < 00:01 Earth 0.45839231627322 0.458391023863914 0.458393608682552 31.364537373089 31.3643520466314 2442355.942527412 0.0866010037282283 64.827687914685 10.0433744884551 -6.28930742013087 1232560.98773356 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1982-Nov-06 10:38 < 00:01 Earth 0.419616418676958 0.419615235983428 0.41961760137056 30.1808359559405 30.1806255634993 2445279.942960247 0.0807273562043388 59.4684596344681 10.0417748975027 -7.48819015951452 1266001.24267422 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1990-Nov-09 11:03 < 00:01 Earth 0.361027497301386 0.361026522263268 0.361028472339567 28.3754897296313 28.3752296354116 2448204.960678668 0.0683493609670385 49.2991055305092 10.0512224693749 -9.7209542504173 1346362.33219755 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
1998-Nov-14 19:36 < 00:01 Earth 0.257322289825197 0.257321605201041 0.257322974449469 25.2135213504679 25.2131106691166 2451132.316391573 0.0525493245978368 35.3852660375058 10.0989739739588 -15.9298438651161 1417855.60435457 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2006-Nov-16 22:45 < 00:01 Earth 0.217502235458742 0.217501872482958 0.217502598434576 23.9699165868839 23.9694055094106 2454056.447910547 0.0367732067045386 19.1898410942017 10.0712470367146 -22.9718513199599 1937336.24901599 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2014-Nov-18 09:38 < 00:01 Earth 0.189815121095383 0.189815057742542 0.189815184448223 23.1015763984263 23.1009687594185 2456979.901513175 0.0323085136820276 10.8906971320832 3.15612104282107 89.2271665926901 10085875.793958 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2021-Oct-08 13:56 < 00:01 Jupiter 1.99026091202963 1.99026052849762 1.99026129556176 3.53300612793218 3.41042006027562 2459496.080423977 0.0884893004621332 37.6353592151167 14.8119981085235 -62.4399160431122 6178639.34278807 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2022-Nov-21 17:11 < 00:01 Earth 0.141373687015991 0.141373386742994 0.141373987289252 21.3642389414466 21.3633567449831 2459905.216096158 0.0470926102455974 19.5252564366163 9.46280546671007 -47.201236817592 1743378.6907755 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2030-Nov-22 20:11 < 00:01 Earth 0.125378162617159 0.125377635230659 0.125378690005254 20.7647735605875 20.7637500933163 2462828.341113330 0.0680949910527605 35.6331720877733 9.82727928910606 -44.5878402986493 1351458.92504966 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2038-Nov-21 18:05 < 00:01 Earth 0.137906658875705 0.137905889423326 0.137907428330505 21.3037753453982 21.3028684028209 2465749.253743451 0.0849324888724188 48.5688165571125 9.83182123024033 -38.7618889436485 1311701.94206703 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2046-Nov-21 09:00 < 00:01 Earth 0.15470128337374 0.154700363427792 0.154702203322203 21.7262781626132 21.7254854038926 2468670.874805290 0.0940343850834122 55.8216709051028 9.79425620051577 -35.3649131045232 1358869.06681052 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2054-Nov-20 15:12 < 00:01 Earth 0.167501023936609 0.167500038098064 0.167502009777363 22.166632779507 22.1659151468497 2471592.133091605 0.0953635533910934 58.0727250333861 9.70507787360314 -32.6816255985612 1387111.86870834 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2062-Nov-17 13:24 < 00:01 Earth 0.21640681474073 0.216405830892457 0.216407798589963 23.8510468744643 23.8505306498862 2474511.058209965 0.0867904533273743 54.2424555142757 9.55337051788846 -25.6797107578286 1497986.61590164 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2070-Nov-14 15:57 < 00:01 Earth 0.28296874921114 0.28296789234107 0.28296960608158 25.7780867042949 25.7777214239715 2477430.164683380 0.0728813303474007 45.8768663906554 9.30226206867902 -21.8268311021017 1809887.53792483 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2078-Nov-12 20:06 < 00:01 Earth 0.319509248643563 0.319508577005546 0.319509920281797 26.9063366210899 26.9060266816435 2480350.337185002 0.0570560659348371 36.0917098190969 8.82811552307419 -22.603949289645 2311395.518979 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2086-Nov-09 09:46 < 00:01 Earth 0.38239448859487 0.38239400141913 0.382394975770719 28.9376106737078 28.9373698829187 2483268.906960227 0.0411203318521923 26.7750144812356 7.86471274182323 -26.0947105048426 3619228.82814584 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2094-Nov-05 08:47 < 00:01 Earth 0.473176854221984 0.473176458685969 0.473177249758079 31.6033774359881 31.6031992569581 2486186.865857357 0.0304589276910457 22.1694114221555 7.24545823653818 -28.8887534488939 5441124.82087734 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2108-May-29 19:18 < 00:01 Earth 0.464753270916673 0.464752702704415 0.464753839128932 31.3422540503807 31.3420711304861 2491140.304485905 0.0397984771174975 28.5151512404923 11.2716245001521 7.03082742620955 2438991.75230516 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2116-May-25 07:41 < 00:01 Earth 0.373481949685188 0.373481225828554 0.373482673541822 28.7303680260797 28.7301197108096 2494057.819859826 0.0556920878620707 36.2108874173787 11.1979150934096 4.80956798246194 1523890.53886411 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2124-May-22 08:31 < 00:01 Earth 0.320589617924548 0.320588742541339 0.320590493307776 27.1431357009011 27.1428295007966 2496976.855100612 0.0715549733076016 43.7472714682543 11.1366225806096 3.92119397907617 1080345.43934676 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2132-May-20 20:35 < 00:01 Earth 0.288125423002215 0.28812443063994 0.288126415364507 26.2293430675239 26.2289904967721 2499897.357775615 0.083067710349362 49.6328991039274 11.1094719431385 4.54453815882171 875297.202280724 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2140-May-18 06:44 < 00:01 Earth 0.23501592584447 0.235014890896798 0.235016960792196 24.7464435095923 24.7459853610685 2502816.780704502 0.0887983525186675 51.887820654309 10.9369431889311 6.08885609436338 720053.705114414 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2148-May-16 16:09 < 00:01 Earth 0.208818314237904 0.208817397694072 0.208819230781795 23.9350063092575 23.9344732014271 2505737.173001871 0.0829843321927975 46.0740205412617 10.7793530989944 7.47661957245097 735428.517528062 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2156-May-18 07:35 < 00:01 Earth 0.239788146242575 0.239787483445291 0.239788809039901 24.787082852911 24.7866345586745 2508660.815881792 0.0659477454816919 33.5494099913033 10.5650055999484 10.4275090220936 1158481.12526562 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2164-May-20 06:14 < 00:01 Earth 0.270629546462836 0.270629146579935 0.270629946345814 25.7291237443988 25.7287410823602 2511584.759680851 0.0489210258524654 21.4404418678061 8.99509939277744 23.8797667051081 2375076.28618613 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2172-May-21 11:47 < 00:01 Earth 0.29562997858271 0.295629664222077 0.295630292943444 26.416318842828 26.4159776543225 2514507.991040459 0.0418988470792271 18.3768983074741 7.05624061376724 34.4169562019949 3836063.69420977 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2180-May-25 07:25 < 00:01 Earth 0.373471317304762 0.373470773330955 0.373471861278591 28.5943375860817 28.5940880824003 2517433.808771536 0.0512243529554694 27.7541023600351 10.3650629493147 13.1858510200386 2201084.32319924 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
2188-May-30 05:42 < 00:01 Earth 0.461598078646874 0.46159723252386 0.461598924769914 31.2319792109794 31.2317943904788 2520360.737533190 0.0678096042192982 42.3936185383389 11.3637971795101 5.79558686464674 1651924.83503918 T 174 CATAB v2.0f-lin.ifort 2020-Jan-06 05:41:21 2020-Jan-06 05:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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