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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 191 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6390837342051855 3.7603e-08  
a 1.925283077572259 3.054e-09 au
q .6948659789553279 7.2447e-08 au
i 10.75914606034053 4.2044e-06 deg
node 41.30459701313962 1.8718e-05 deg
peri 102.6916025709861 1.8917e-05 deg
M 155.2795555182143 3.5994e-06 deg
tp 2458975.626001752227
(2020-May-06.12600175)
9.0901e-06 TDB
period 975.7539481842838
2.67
2.3217e-06
6.356e-09
d
yr
n .3689454710072148 8.7786e-10 deg/d
Q 3.15570017618919 5.0057e-09 au
  Orbit Determination Parameters
   # obs. used (total)      720  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      8383 days (22.95 yr)  
   first obs. used      1998-09-29  
   last obs. used      2021-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Sep-12 05:49:39  

Additional Information
 Earth MOID = .002886 au 
 Jupiter MOID = 1.98376 au 
 T_jup = 3.622 
[ 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 15.66   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 0.0659932429733429 0.0659929583082182 0.0659935276563012 17.8811207362419 17.8788626237468 2416080.453570729 0.127039139577842 75.7904253264996 9.75185599515244 82.1096931414893 1012344.89127751 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1910-Nov-20 15:34 < 00:01 Earth 0.126580882200901 0.126579468554388 0.12658229585281 21.2344254636936 21.2334341437092 2418996.148339467 0.115410599240962 81.8630144107533 9.71663414427768 -30.8015538451511 989447.584130644 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1918-Nov-16 00:02 < 00:01 Earth 0.215155035897336 0.215153548606909 0.215156523188718 23.9861574490306 23.9856411458087 2421913.501189837 0.0998908298265426 77.5895565544921 9.69741941569224 -17.2271450076718 1018480.01132532 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1926-Nov-10 20:17 < 00:01 Earth 0.313026435887553 0.313025084403243 0.313027787372059 27.0313933443106 27.0310784495477 2424830.345206883 0.0805948705068067 68.5625831008715 9.6901183448001 -10.708800528374 1073847.67314911 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1934-Nov-04 17:04 < 00:01 Earth 0.441078684420538 0.441077577418256 0.441079791422871 30.8802540838962 30.8800584623006 2427746.211168397 0.057744816269319 55.5519285633739 9.69582665566379 -6.53999215920279 1355826.6205897 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1940-May-05 08:43 < 00:01 Venus 0.119710927565718 0.11971049584351 0.11971135928915 18.0725237441446 18.071519987562 2429754.862992940 0.0868697493235939 28.922801435481 3.25901692000064 -42.2321264730547 3294505.39196077 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1948-May-02 04:52 < 00:01 Venus 0.0917778688795149 0.0917775570102911 0.0917781807498448 16.4390133591828 16.4375739832334 2432673.702845217 0.0791334736070775 23.354843134606 6.42372243678615 -50.8985928565701 1636773.99938776 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1948-May-27 21:19 < 00:01 Earth 0.479240786028117 0.479240427609748 0.479241144446486 31.7429876480853 31.7428124973427 2432699.388358087 0.0456782279060356 17.9503889638668 11.0494865982849 -6.76820463570974 3876983.07986628 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1956-Apr-29 11:07 < 00:01 Venus 0.0706490479733404 0.0706485719466617 0.070649524004766 15.210202300956 15.2081813466494 2435592.963096015 0.109980518560454 38.8129694874611 8.05946094366857 -53.9835694093105 1071756.88462171 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1956-May-26 03:59 < 00:01 Earth 0.436430910963733 0.436430170571099 0.436431651356366 30.5951872041265 30.5949876571482 2435619.665794493 0.0557803553771256 36.9688920977686 10.6359997491126 3.07077987357544 1715440.49343193 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1964-Apr-30 08:14 < 00:01 Venus 0.0913096298113759 0.0913085993611255 0.091310660268052 16.4073957938489 16.40594624821 2438515.843062371 0.140475158856414 64.3071347505773 8.00379790877088 -37.3037924423862 1019571.69120828 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1964-May-26 09:36 < 00:01 Earth 0.448729829452781 0.448728667117571 0.44873099178799 30.8460795857452 30.8458870866037 2438541.899780559 0.0804402884848041 57.9796902100418 10.5808011871742 1.49273540150425 1116937.62452633 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1974-Nov-04 10:37 < 00:01 Earth 0.458391968761694 0.458390697943995 0.458393239579418 31.3645273848923 31.3643420582352 2442355.942544165 0.0860465150112464 63.7492821019641 9.80706820518541 -6.32687024243127 1258524.2966854 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1982-Nov-06 10:38 < 00:01 Earth 0.419616181691635 0.419615016950508 0.41961734643281 30.1808293609117 30.1806189683057 2445279.942971564 0.080338947442312 58.571829343503 9.80687578363477 -7.53261741732031 1291983.06580511 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1990-Nov-09 11:03 < 00:01 Earth 0.361027373270578 0.361026412877089 0.361028333664149 28.3754863511742 28.3752262568341 2448204.960684329 0.0680814183090673 48.5677490714806 9.81661685090268 -9.78249144327518 1374578.80881957 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
1998-Nov-14 19:36 < 00:01 Earth 0.257322235695243 0.257321562580385 0.257322908810218 25.2135200605059 25.2131093790472 2451132.316393574 0.0523396554769478 34.8132543381242 9.86214388307401 -16.0628776378913 1451387.91184721 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2006-Nov-16 22:45 < 00:01 Earth 0.217502238341138 0.217501882004883 0.217502594677442 23.9699169859307 23.9694059084726 2454056.447910200 0.0364614879753785 18.8706923047592 9.82717498587468 -23.228548253112 1980607.17311999 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2014-Nov-18 09:38 < 00:01 Earth 0.189815122501209 0.189815061060644 0.189815183941773 23.1015766176448 23.1009689786471 2456979.901513644 0.0313391655355676 10.6338217303397 3.06059447899782 89.2007315551997 10391119.6485721 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2021-Oct-08 13:56 < 00:01 Jupiter 1.99026087477016 1.99026052055448 1.99026122898595 3.53300602306344 3.41041994999063 2459496.080403321 0.083450202722255 34.4953643571453 14.1449652685059 -62.5415399823521 6500516.80442886 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2022-Nov-21 17:11 < 00:01 Earth 0.141373645509472 0.141373346776027 0.141373944243175 21.3642375719822 21.363355375203 2459905.216099400 0.0456089458860881 19.3059883943242 9.28722350005744 -46.5177737488018 1763131.6343207 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2030-Nov-22 20:11 < 00:01 Earth 0.125378063289851 0.125377539987685 0.125378586593569 20.7647697813661 20.7637463130976 2462828.341120961 0.0663055163200819 35.2470935680961 9.61823402821588 -44.3280534009268 1375512.21553241 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2038-Nov-21 18:05 < 00:01 Earth 0.137906476464428 0.137905714139249 0.13790723879195 21.3037686780041 21.3028617339431 2465749.253756695 0.0829571068348001 48.0177153152024 9.62376931445996 -38.5813181191342 1335565.32052582 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2046-Nov-21 09:00 < 00:01 Earth 0.154701024792053 0.154700113219956 0.154701936366595 21.72626912373 21.7254763633543 2468670.874822040 0.0920389266992869 55.2167308277018 9.58155569092942 -35.2022822065858 1384145.1275245 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2054-Nov-20 15:12 < 00:01 Earth 0.167500722842789 0.167499745415983 0.167501700271737 22.1666225422447 22.1659049079658 2471592.133111074 0.0934586431811437 57.48528065817 9.49731018370962 -32.5207929091577 1411814.3790898 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2062-Nov-17 13:24 < 00:01 Earth 0.216406488187336 0.216405512422787 0.216407463952821 23.8510365188188 23.8505202932376 2474511.058228563 0.0850665194508156 53.7224313495145 9.35581549119188 -25.4980292170263 1519938.77897617 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2070-Nov-14 15:57 < 00:01 Earth 0.282968434169211 0.282967583613013 0.282969284725762 25.7780769371962 25.7777116563277 2477430.164701349 0.0714192156197384 45.468238359643 9.11160437341505 -21.5812222756044 1829184.28270737 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2078-Nov-12 20:06 < 00:01 Earth 0.319508926146934 0.319508259031165 0.31950959326292 26.9063266593207 26.9060167194467 2480350.337203190 0.0558895506800006 35.7690008315144 8.66209530507331 -22.2573680912736 2325990.27322599 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2086-Nov-09 09:46 < 00:01 Earth 0.382394146360998 0.382393665458113 0.382394627263992 28.9376001439915 28.9373593528992 2483268.906979232 0.0401509970216739 26.3605887146938 7.7171044633737 -25.7385325826064 3650284.1131998 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2094-Nov-05 08:47 < 00:01 Earth 0.47317652012304 0.473176141484277 0.473176898761883 31.6033672130193 31.6031890338057 2486186.865875939 0.0293877450511774 21.334840543694 6.9044274260142 -29.4780795372089 5768272.9322007 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2108-May-29 19:18 < 00:01 Earth 0.464753572251692 0.464753009690416 0.464754134812968 31.3422627944758 31.3420798747508 2491140.304503496 0.0374699436076017 28.2044265862252 10.8622715326237 6.44792729283838 2456244.16342431 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2116-May-25 07:41 < 00:01 Earth 0.373482244355285 0.373481524521336 0.373482964189233 28.7303764793742 28.7301281643731 2494057.819876867 0.0532581270407087 36.005941535474 10.7833259472886 4.71577562448616 1534357.94428219 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2124-May-22 08:31 < 00:01 Earth 0.320589892735658 0.320589022492162 0.320590762979172 27.14314350503 27.142837305276 2496976.855117231 0.0687890336060616 43.4968096744039 10.7265329770442 4.04187178330176 1091516.00200442 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2132-May-20 20:35 < 00:01 Earth 0.288125670876351 0.288124685379916 0.28812665637282 26.2293501098761 26.2289975395222 2499897.357791919 0.0801451395089591 49.3008821657565 10.7018669486719 4.70904151037176 888187.942788338 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2140-May-18 06:44 < 00:01 Earth 0.235016126497596 0.235015099063945 0.235017153931299 24.7464491902929 24.7459910422653 2502816.780717609 0.0859653027020878 51.5251164678903 10.5526363478832 6.23182399398631 733209.222908946 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2148-May-16 16:09 < 00:01 Earth 0.208818452252568 0.208817542067744 0.208819362437451 23.9350101780025 23.9344770706105 2505737.173011389 0.080212611873089 45.7697034112573 10.4022290558487 7.61754723574419 749156.122437944 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2156-May-18 07:35 < 00:01 Earth 0.239788168652302 0.239787510424445 0.239788826880214 24.7870834693755 24.786635175192 2508660.815886043 0.0633496838039537 33.3253012993815 10.1744706014068 10.4670781765471 1177201.31161976 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2164-May-20 06:14 < 00:01 Earth 0.270629431600062 0.270629038962052 0.270629824238132 25.7291204247799 25.7287377625294 2511584.759677700 0.0468111854914263 21.0008226067054 8.71825050664325 23.4255836686384 2419448.12416853 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2172-May-21 11:47 < 00:01 Earth 0.29562975389438 0.295629458527409 0.295630049261435 26.4163123405317 26.4159711516828 2514507.991031679 0.040490694947954 17.3731478887937 6.83006629090063 35.2248762460751 4028467.1469193 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2180-May-25 07:25 < 00:01 Earth 0.373470957585306 0.373470435941176 0.373471479229458 28.5943272319358 28.5940777279238 2517433.808756978 0.0503688695304253 26.54295980386 10.1354421191533 12.4335980672055 2256450.59147737 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
2188-May-30 05:42 < 00:01 Earth 0.461597531759977 0.461596711604757 0.461598351915198 31.2319633372816 31.231778516468 2520360.737508995 0.0671754385597461 41.0492683222077 11.0110717054563 5.11432047085671 1683295.3238043 T 191 CATAB v2.0g-lin.ifort 2021-Sep-12 05:49:42 2021-Sep-12 05:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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