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(2008 SR1)
Classification: Apollo [NEO, PHA]          SPK-ID: 3427522
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6504163783782484 2.8558e-08  
a 2.372203059969809 3.2719e-09 au
q .829283336926447 6.7689e-08 au
i 16.88054647346388 1.3123e-05 deg
node 178.0267400166374 1.0224e-05 deg
peri 116.8086465528132 1.382e-05 deg
M 135.595376606292 5.6352e-06 deg
tp 2458697.846627884653
(2019-Aug-02.34662788)
2.0811e-05 TDB
period 1334.523480744756
3.65
2.761e-06
7.559e-09
d
yr
n .2697592100808112 5.581e-10 deg/d
Q 3.915122783013171 5.4e-09 au
  Orbit Determination Parameters
   # obs. used (total)      237  
   data-arc span      4056 days (11.10 yr)  
   first obs. used      2008-09-23  
   last obs. used      2019-11-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37523  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 01:51:10  

Additional Information
 Earth MOID = .0284765 au 
 Jupiter MOID = 1.80119 au 
 T_jup = 3.175 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.3   n/a MPO149044  
rotation period rot_per 22.15 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]

[ 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-Oct-14 00:52 < 00:01 Earth 0.490538755053328 0.490534735527601 0.490542774579223 31.1962019349965 31.1960278190607 2416036.535776521 0.274758817089095 200.914856425603 10.3064354408696 -3.9596754498935 581551.991565611 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1913-Oct-05 11:55 < 00:01 Earth 0.342264825645086 0.342260149430122 0.342269501861023 26.7295996011285 26.7293083551078 2420045.996842718 0.331662774683247 234.958189925465 9.85424174510268 -7.05543899809838 638528.020319079 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1919-Mar-25 22:03 < 00:01 Jupiter 1.88170133228509 1.88169890984866 1.88170375472163 5.01662973775014 4.926083724682 2422043.418638041 0.393079224591808 130.009293789837 78.8809876789158 -34.4908462915845 1117670.51838695 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1924-Sep-30 15:29 < 00:01 Earth 0.23981687047989 0.239811370352698 0.239822370610108 24.075471818234 24.0750103285675 2424059.144985003 0.409571359831029 277.543811637202 9.85392757774302 -8.819534674992 545268.306861791 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1935-Sep-14 11:22 < 00:01 Earth 0.066802148193828 0.066797908078829 0.0668063884509433 16.6769151579585 16.6745232891567 2428059.973932640 0.595534369425724 261.471720426202 9.65309718980018 36.0608218395735 617959.961503065 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1946-Jul-06 15:18 00:02 Earth 0.317541760036611 0.317541085396358 0.317542434681214 13.2501645702468 13.2495312831849 2432008.137750977 1.58917022511887 79.673704300541 19.6809535565429 -69.3011945021595 1871635.86448147 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1957-May-10 07:28 < 00:01 Earth 0.232532834448363 0.232532447053359 0.232533221843407 16.1746735552801 16.173965116938 2435968.811027463 0.373069160337398 164.625559412528 19.3091730373623 89.8003563392372 1652450.86241316 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1966-Sep-22 15:07 < 00:01 Jupiter 1.86041440055317 1.86041225568065 1.86041654542633 4.95441957660446 4.86165602645845 2439391.130121176 0.360940223175865 129.866350782077 59.9447048967172 -43.4045942554013 1379568.91101243 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1968-May-04 08:49 < 00:01 Earth 0.245881370726573 0.245880211153815 0.245882530324406 18.7775315244698 18.776954419379 2439980.867375602 0.2641066677182 142.597345179853 18.0374060125062 -67.1472055641528 1731783.9744792 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1979-Apr-19 15:30 < 00:01 Earth 0.434377625594068 0.434375448217529 0.434379802972854 27.3961450433252 27.3959211417095 2443983.145978848 0.168774285391131 119.538250934071 18.1385894205213 -25.0385949645071 1492814.56432071 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
1997-Oct-01 08:42 < 00:01 Earth 0.244463312868546 0.244462352036035 0.244464273701113 24.3144927236493 24.3140444559418 2450722.862783586 0.0733514462870432 48.3209696420543 10.5098130489537 -7.64009420330278 841930.913219056 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2008-Sep-16 20:47 < 00:01 Earth 0.0398832632635806 0.0398830693702755 0.039883457157074 18.0703873493052 18.066689930525 2454726.366116605 0.0511301270387877 11.3309734713629 6.59526229660327 39.8868601342622 698267.33328 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2014-Mar-15 21:45 < 00:01 Jupiter 1.85210741878384 1.85210550693601 1.85210933063293 5.03495885292071 4.94329369621297 2456732.406026396 0.439893886058002 133.415437757585 48.9963386599137 -50.8165124030086 1728107.47264457 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2019-Sep-09 17:26 < 00:01 Earth 0.0935917669858679 0.0935912168900906 0.0935923170816718 15.7741466814347 15.7723417792018 2458736.226427375 0.1027918012393 27.5459260642814 8.75283307418074 -5.50885378556752 545309.064031028 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2030-Jul-12 12:18 < 00:01 Earth 0.316606409564473 0.316605953579658 0.316606865549467 13.7331133130636 13.7325004924849 2462695.012466720 0.315285324084772 27.5945676988234 14.1165583099926 -41.2559008233676 2074864.76880307 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2041-May-02 23:11 < 00:01 Earth 0.268349946433106 0.268349429338334 0.268350463530685 19.7200811405242 19.719577630999 2466642.466190437 0.121388686961777 73.92002968768 20.1125480539791 -76.8894575193825 1846940.38799687 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2052-Apr-18 06:05 < 00:01 Earth 0.492830625804876 0.492829076212165 0.492832175400528 28.5178331226198 28.5176435395336 2470645.753342211 0.146910149053152 99.1228573519781 19.7189619649838 -39.7256057494344 2328898.37091319 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2061-Sep-07 08:21 < 00:01 Jupiter 1.84354031934827 1.84353856529296 1.84354207340536 5.0899901177089 4.9989089625172 2474074.847839203 0.545740624060432 137.082503867346 40.046321070898 -54.9622695251666 2170341.30250335 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2081-Sep-28 16:14 < 00:01 Earth 0.198322315988514 0.198319555313401 0.198325076663626 23.1076073717827 23.1070259500574 2481401.176562245 0.241201532312713 137.664591599616 11.1871880560692 0.353060592822942 206459.00726489 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2092-Aug-22 20:28 < 00:01 Earth 0.20884475092054 0.208842567835578 0.208846934009086 13.9528835782092 13.9519691722386 2485382.352615395 0.751273862366989 117.190595422136 11.2262077503532 -21.8342876328629 1121905.38123809 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2103-Jul-04 05:02 < 00:01 Earth 0.318053255701125 0.31805278853594 0.318053722866346 13.2119935960241 13.2113595006591 2489348.709741370 0.951913859792862 42.1565810529351 23.0185699639299 84.1958028824634 1683783.02658829 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2109-Feb-26 23:45 < 00:01 Jupiter 1.84263177421074 1.84263008257509 1.84263346584838 5.21367162096341 5.12474488172814 2491413.489747623 0.55887664225265 139.52660159138 41.0027495583975 -57.6137139017941 2216138.11069308 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2114-May-19 03:10 < 00:01 Earth 0.281912593079985 0.281911633214446 0.281913552953744 14.0037471571585 14.0030722188392 2493320.631677419 0.316665762390898 95.8194441739569 19.4255161631502 62.2067460407533 1926418.98048205 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2125-Apr-24 17:39 < 00:01 Earth 0.404520098215667 0.404518852185611 0.404521344251264 25.294962800176 25.2947024004978 2497314.235165957 0.13570817236024 99.2600824947485 16.5697485252522 -52.2739700124253 2785078.02297373 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2143-Oct-04 14:39 < 00:01 Earth 0.293961747691837 0.293959994281701 0.29396350110214 25.5550919448673 25.5547372563718 2504051.110501201 0.142632685006893 88.1069171410723 9.62763801775632 7.1254484708396 711659.676716171 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2154-Sep-23 13:29 < 00:01 Earth 0.119080566440276 0.119079392094889 0.119081740785684 20.6657679808455 20.6646852231149 2508058.062012858 0.125039907465449 58.607374789234 10.5928902462446 2.3736958382698 299112.419860354 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2156-Aug-10 16:31 < 00:01 Jupiter 1.85326348160149 1.85326175213975 1.85326521106471 5.36834263590373 5.28251977139097 2508745.188196018 0.4906479056406 139.456936100412 51.1001616894346 -59.0736506945226 1897244.58361386 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2165-Sep-09 11:08 < 00:01 Earth 0.0744162405089667 0.0744158066990783 0.0744166743193415 16.2284583584998 16.2262518942739 2512061.963923079 0.0859398050651139 23.8824245285489 7.54407967636222 26.5187528340796 836770.525696371 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2176-Jun-15 20:14 < 00:01 Earth 0.323140146001362 0.323139562470571 0.323140729532172 12.636747231944 12.6360947066449 2515994.342884519 0.318334610807008 32.241598000514 27.7006297182119 -57.3141867641858 1587070.01825446 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
2187-Apr-26 15:15 < 00:01 Earth 0.40615769505793 0.406156462037101 0.406158928079775 24.8311715062193 24.8309073123278 2519961.135447526 0.0975022675930813 70.108872356223 18.5779947439887 -29.8884898938226 1668021.01410402 T 46 CATAB v2.0g-lin.ifort 2021-Apr-15 01:51:11 2021-Apr-15 01:51
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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