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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 ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 186 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6392575981202799 3.8327e-08  
a 1.92432095248221 3.0435e-09 au
q .6941841623859031 7.3782e-08 au
i 10.76129041159392 4.574e-06 deg
node 41.47102708953345 1.8722e-05 deg
peri 102.4753062885914 1.8995e-05 deg
M 83.07533488404046 3.494e-06 deg
tp 2458975.499082211931
(2020-May-05.99908221)
9.1141e-06 TDB
period 975.0226167221359
2.67
2.3132e-06
6.333e-09
d
yr
n .369222204516917 8.7595e-10 deg/d
Q 3.154457742578517 4.9892e-09 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      7955 days (21.78 yr)  
   first obs. used      1998-09-29  
   last obs. used      2020-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49063  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:26:02  

Additional Information
 Earth MOID = .00306656 au 
 Jupiter MOID = 1.98561 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457520.5 (2016-May-12.0) TDB
Reference: JPL 186 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6393969111319207 3.8335e-08  
q .6937480270602611 7.3857e-08 au
tp 2458001.136662213705
(2017-Sep-04.63666221)
7.7327e-06 TDB
node 41.50124306492285 1.872e-05 deg
peri 102.4551153572059 1.8992e-05 deg
i 10.7635923248879 4.5747e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      702  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      7955 days (21.78 yr)  
   first obs. used      1998-09-29  
   last obs. used      2020-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49063  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:26:02  

Additional Information
 Jupiter MOID = 1.98561 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.46960747974291E-15 -2.8310055471123E-15 -2.230377537805328E-13 -6.269528229927352E-14 1.160561971281894E-13 1.548106328522397E-14
q -2.8310055471123E-15 5.454815755254631E-15 4.333671009635843E-13 1.191934383896434E-13 -2.210902233404708E-13 -2.94636860121483E-14
tp -2.230377537805328E-13 4.333671009635843E-13 5.979515495099405E-11 -9.865071267019418E-12 1.957207705568028E-11 1.83004632836591E-12
node -6.269528229927352E-14 1.191934383896434E-13 -9.865071267019418E-12 3.504422608904705E-10 -3.455992170113626E-10 -1.26205257140554E-11
peri 1.160561971281894E-13 -2.210902233404708E-13 1.957207705568028E-11 -3.455992170113626E-10 3.60686430008426E-10 1.32641787514513E-11
i 1.548106328522397E-14 -2.94636860121483E-14 1.83004632836591E-12 -1.26205257140554E-11 1.32641787514513E-11 2.092773727465971E-11

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 15.66   n/a E2021B10  
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. 2020-October); 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, A.M.; 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

[ 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
1902-Nov-26 22:53 < 00:01 Earth 0.0659932450293084 0.0659929594071479 0.0659935306691525 17.8811214245988 17.878863312261 2416080.453568884 0.127712186245724 76.0608632810439 9.86906743215576 82.1719179047659 999443.105280531 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1910-Nov-20 15:34 < 00:01 Earth 0.126580913845957 0.126579489588799 0.126582338108562 21.2344264329883 21.233435113297 2418996.148337351 0.116484516084037 82.4123816838053 9.83676975962241 -30.7268319932471 974982.900306005 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1918-Nov-16 00:02 < 00:01 Earth 0.215155074830387 0.215153571135378 0.21515657852635 23.9861585675522 23.9856422644477 2421913.501187374 0.101392267229622 78.4039485335668 9.82855135409527 -17.1284151100687 1000177.65746194 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1926-Nov-10 20:17 < 00:01 Earth 0.313026475893422 0.313025104919368 0.31302784686769 27.0313944782337 27.0310795835242 2424830.345204973 0.0823950793663091 69.5208237730095 9.82944936793684 -10.5722995140991 1050104.88355994 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1934-Nov-04 17:04 < 00:01 Earth 0.44107872074203 0.441077592412703 0.441079849071382 30.8802550997734 30.8800594782004 2427746.211166445 0.0599112559407478 56.6004255894977 9.85484975495059 -6.33833243875592 1319536.08340567 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1940-May-05 08:43 < 00:01 Venus 0.119710904624742 0.119710453644506 0.119711355606332 18.0725222094162 18.0715184525561 2429754.862990642 0.0902318132077018 30.2740937238479 3.28115619472095 -42.3372114958114 3256861.22563998 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1948-May-02 04:52 < 00:01 Venus 0.091777859564031 0.0917775431257354 0.0917781760035213 16.4390123864159 16.4375730102352 2432673.702843512 0.0818095100513844 24.0599535157973 6.54272889224899 -51.6751196666022 1615653.58584124 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1948-May-27 21:19 < 00:01 Earth 0.479240778150917 0.479240412585889 0.479241143715946 31.7429873663352 31.7428122155881 2432699.388356553 0.0477929588629697 18.3076416985896 11.3699473015786 -6.77693362686096 3802658.36958284 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1956-Apr-29 11:07 < 00:01 Venus 0.07064905127027 0.0706485748393854 0.0706495277058613 15.2102019340906 15.2081809798296 2435592.963095020 0.11099477648945 38.8594721006809 8.42370317741172 -54.1603426504517 1024364.89611862 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1956-May-26 03:59 < 00:01 Earth 0.43643091371749 0.436430170375303 0.436431657059677 30.5951872415352 30.5949876945585 2435619.665793314 0.0566739904666451 37.1254566872483 10.8927125997955 3.35562186375708 1712190.23960532 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1964-Apr-30 08:14 < 00:01 Venus 0.091309633423188 0.091308602555878 0.0913106642969028 16.4073956216746 16.4059460760778 2438515.843061634 0.140988458969732 64.3184555953393 8.38111139202834 -37.3191948526911 972082.81616555 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1964-May-26 09:36 < 00:01 Earth 0.448729835767498 0.448728670468983 0.448731001066039 30.8460797354097 30.8458872362719 2438541.899779394 0.0808732150157869 58.1318337635264 10.8474820153127 1.65464495804194 1115923.69820648 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1974-Nov-04 10:37 < 00:01 Earth 0.458391977745958 0.458390705474096 0.458393250017873 31.3645275659449 31.3643422392925 2442355.942543505 0.0861672981465402 63.8216424019073 9.9892795769096 -6.3246998933574 1249645.44849931 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1982-Nov-06 10:38 < 00:01 Earth 0.419616188300301 0.419615022753015 0.419617353847658 30.1808294758306 30.1806190832287 2445279.942971209 0.0804092920324761 58.6124513273557 9.98621330482384 -7.53711823247045 1282806.79477496 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1990-Nov-09 11:03 < 00:01 Earth 0.361027378182383 0.361026417107201 0.361028339257627 28.3754864210978 28.3752263267618 2448204.960684457 0.0681484726834769 48.6033204606022 9.99284937349851 -9.79764045250371 1364573.88293926 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
1998-Nov-14 19:36 < 00:01 Earth 0.25732224057394 0.257321566610918 0.257322914537094 25.2135201112005 25.2131094297504 2451132.316393564 0.0524211234969143 34.8566809668926 10.0344117259509 -16.0836745374288 1438503.44180503 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2006-Nov-16 22:45 < 00:01 Earth 0.217502240387014 0.21750188381853 0.217502596955546 23.969916937306 23.9694058598516 2454056.447910581 0.0365009262216349 18.8936225720261 9.990458767745 -23.4804359547551 1971596.73705488 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2014-Nov-18 09:38 < 00:01 Earth 0.189815122185537 0.189815060703756 0.189815183667318 23.101576500577 23.1009688615753 2456979.901513497 0.031358344978845 10.8268389134178 3.06367220825864 89.348697172422 10382575.0955014 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2021-Oct-08 13:56 < 00:01 Jupiter 1.99026090065797 1.99026052063558 1.9902612806806 3.53300597208048 3.41041989879827 2459496.080418077 0.0868478307674776 37.5349596446377 14.4986089087555 -62.6342948964092 6320516.07215044 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2022-Nov-21 17:11 < 00:01 Earth 0.141373646287702 0.14137334753652 0.14137394503915 21.3642374450266 21.363355248247 2459905.216099435 0.0456277692084093 19.3611244707568 9.42208477232226 -46.9816034397164 1748581.09000169 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2030-Nov-22 20:11 < 00:01 Earth 0.125378062035387 0.125377538502614 0.125378585569713 20.7647695533826 20.7637460850926 2462828.341121163 0.0663401239328506 35.2976067358877 9.77545658382355 -44.4631649490926 1356460.10464488 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2038-Nov-21 18:05 < 00:01 Earth 0.137906472306127 0.137905709416088 0.137907235198526 21.3037683768415 21.3028614327404 2465749.253756782 0.0830017670184758 48.0961892987937 9.7806113568607 -38.6780190415769 1316764.26613557 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2046-Nov-21 09:00 < 00:01 Earth 0.154701019704655 0.154700107559069 0.154701931852694 21.7262687841714 21.7254760237572 2468670.874822931 0.0920666376009351 55.3015901783812 9.74664470712523 -35.2991324873555 1363882.49349598 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2054-Nov-20 15:12 < 00:01 Earth 0.167500715804769 0.167499737558999 0.167501694052699 22.1666221626161 22.1659045282948 2471592.133111684 0.0934914196581746 57.5858743561636 9.65996186996715 -32.6216589368079 1391918.24799786 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2062-Nov-17 13:24 < 00:01 Earth 0.216406478884223 0.216405501715229 0.216407456054152 23.8510361151908 23.8505198895786 2474511.058228676 0.0851102759726782 53.8492488188819 9.51256068296681 -25.624880230331 1502606.23570549 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2070-Nov-14 15:57 < 00:01 Earth 0.282968425435778 0.282967572759104 0.282969278112823 25.7780765690043 25.7777112881194 2477430.164701415 0.071478665432629 45.6341505038491 9.267987315322 -21.7684319122331 1814066.47298382 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2078-Nov-12 20:06 < 00:01 Earth 0.319508918980371 0.319508248424303 0.319509589536639 26.9063263438734 26.9060164039889 2480350.337203242 0.0560172229391077 36.0101594314606 8.80260918428023 -22.5066555918073 2311353.72746256 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2086-Nov-09 09:46 < 00:01 Earth 0.382394140834623 0.382393653585204 0.38239462808415 28.9375998767837 28.9373590856856 2483268.906979051 0.0404304243424766 26.7517360367861 7.84730240506876 -25.9573692946594 3612153.95609137 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2094-Nov-05 08:47 < 00:01 Earth 0.4731765169788 0.473176125767535 0.473176908190146 31.6033670219774 31.6031888427616 2486186.865875853 0.0301091189909118 21.978409823432 7.14258099268223 -29.1468283328079 5538174.9845713 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2108-May-29 19:18 < 00:01 Earth 0.464753585452086 0.464753021325358 0.46475414957884 31.3422631309186 31.3420802112008 2491140.304502851 0.0392989750269244 28.3021895532654 11.1357778095022 6.86850725799133 2453956.87133959 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2116-May-25 07:41 < 00:01 Earth 0.373482254911113 0.373481534574205 0.373482975248021 28.7303767280369 28.730128413045 2494057.819876650 0.0548315842351802 36.0360067403438 11.0456536347614 4.82996883170081 1532781.72510407 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2124-May-22 08:31 < 00:01 Earth 0.320589898482316 0.320589028025117 0.320590768939534 27.1431436307888 27.1428374310417 2496976.855116558 0.0703974006483911 43.5055060883906 10.9814019127406 4.00847767525923 1088715.06077274 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2132-May-20 20:35 < 00:01 Earth 0.288125672947128 0.28812468723651 0.28812665865778 26.2293501469015 26.2289975765506 2499897.357790025 0.0816561098158462 49.3080187600546 10.9518812941902 4.66118586666506 884459.588866387 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2140-May-18 06:44 < 00:01 Earth 0.235016126859855 0.235015099321681 0.235017154398068 24.7464491674228 24.7459910193955 2502816.780716609 0.087240009654503 51.5283388159403 10.7775905731685 6.21618675804353 729388.411950662 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2148-May-16 16:09 < 00:01 Earth 0.208818450300595 0.208817539923913 0.208819360677348 23.9350100944202 23.9344769870213 2505737.173010281 0.08147279261715 45.7792191066543 10.6151842711803 7.62479159179901 745319.75302746 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2156-May-18 07:35 < 00:01 Earth 0.239788165661399 0.23978750627948 0.239788825043373 24.787083355264 24.7866350610728 2508660.815884255 0.0646326166644283 33.3970523245646 10.3843010777904 10.6236256765648 1173121.30845264 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2164-May-20 06:14 < 00:01 Earth 0.27062943037871 0.270629030789866 0.270629829967629 25.7291203532565 25.7287376910032 2511584.759676347 0.0479010656722927 21.4310944081088 8.81139484272066 23.8215872236847 2401035.59898777 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2172-May-21 11:47 < 00:01 Earth 0.295629753568231 0.295629441436212 0.295630065700334 26.4163122924407 26.4159711035907 2514507.991030357 0.0413319226984197 18.2264316052072 6.95103187543775 34.25508858361 3877936.83711168 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2180-May-25 07:25 < 00:01 Earth 0.373470956715543 0.373470420863045 0.373471492568083 28.5943271633006 28.5940776592874 2517433.808755550 0.050909202619532 27.3288118468568 10.2560853716614 13.0813803296486 2227563.44395843 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
2188-May-30 05:42 < 00:01 Earth 0.461597531999975 0.461596698258785 0.461598365741191 31.2319632829724 31.2317784621585 2520360.737507839 0.0674709015226593 41.7625287132027 11.2415395773746 5.63907462598617 1670583.35630069 T 186 CATAB v2.0g-lin.ifort 2021-Apr-18 06:26:06 2021-Apr-18 06:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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