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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6504801457391306 2.8554e-08  
a 2.37185309707931 3.2846e-09 au
q .8290097488193521 6.7667e-08 au
i 16.88023538259272 1.3123e-05 deg
node 178.0415709525277 1.0226e-05 deg
peri 116.7815272013763 1.382e-05 deg
M 81.66477779260674 5.6231e-06 deg
tp 2458697.834868186708
(2019-Aug-02.33486819)
2.0797e-05 TDB
period 1334.228175205412
3.65
2.7715e-06
7.588e-09
d
yr
n .2698189160520283 5.6048e-10 deg/d
Q 3.914696445339267 5.4212e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 14:41:01  

Additional Information
 Earth MOID = .0292911 au 
 Jupiter MOID = 1.80175 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 10.9 h n/a LCDB (Rev. 2019-August); 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:
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]

[ 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 00:51 < 00:01 Earth 0.490537915246037 0.490533909283902 0.49054192120834 31.1961776959657 31.1960035795965 2416036.535733563 0.273802198637715 200.2372390099 10.3084143896337 -3.96118458196253 582322.245092496 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1913-Oct-05 11:55 < 00:01 Earth 0.342264109436248 0.342259444245623 0.342268774627845 26.7295791491915 26.7292879023384 2420045.996804930 0.330867431282732 234.405280949244 9.85470819956339 -7.05747284630797 638821.3619208 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1919-Mar-25 22:03 < 00:01 Jupiter 1.88170135444194 1.8816989328906 1.88170377599339 5.01662993201832 4.92608392309217 2422043.418581365 0.392912089205169 130.00632004536 78.8277042480404 -34.5254131725393 1118473.94040589 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1924-Sep-30 15:29 < 00:01 Earth 0.239816249904848 0.239810758644372 0.239821741168338 24.0754543590916 24.0749928678963 2424059.144951345 0.408900405559592 277.097467309216 9.85398095624508 -8.82099671527321 545394.954116698 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1935-Sep-14 11:22 < 00:01 Earth 0.0668025493087576 0.0667983141063189 0.0668067846529717 16.6769023813026 16.6745105250314 2428059.973890938 0.594804350574263 261.164060812996 9.65327673619501 36.0594665857326 617934.831433041 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1946-Jul-06 15:18 00:02 Earth 0.317541778266622 0.317541103783962 0.317542452753613 13.2501604191051 13.2495271318812 2432008.137653616 1.58770042502181 79.615181096816 19.6785519250481 -69.2907395348159 1871763.61460129 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1957-May-10 07:28 < 00:01 Earth 0.232532815916265 0.232532428517565 0.232533203315005 16.1746811599989 16.1739727219335 2435968.811010091 0.372851278066061 164.515402668552 19.309602695049 89.8031992346137 1652422.92511362 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1966-Sep-22 15:07 < 00:01 Jupiter 1.86041432936936 1.86041218456491 1.86041647417443 4.9544193870319 4.86165582916817 2439391.130096396 0.360944298475175 129.867043116766 59.9391234711744 -43.4062030722313 1379710.97019963 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1968-May-04 08:49 < 00:01 Earth 0.24588141487595 0.245880255601234 0.245882574175728 18.777535814666 18.7769587098108 2439980.867366829 0.264026403268188 142.542966432567 18.0369748387944 -67.1446691713051 1731801.14984876 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1979-Apr-19 15:30 < 00:01 Earth 0.434377686228292 0.434375509249032 0.434379863209799 27.3961470065984 27.39592310503 2443983.145975552 0.16874716291519 119.514695262474 18.1381974356036 -25.0368642676248 1492787.73312634 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
1997-Oct-01 08:42 < 00:01 Earth 0.244463284528266 0.244462323720254 0.244464245336347 24.3144919021059 24.3140436343314 2450722.862781625 0.0733480189740525 48.319716876729 10.5098670172848 -7.63991057296733 841940.852676161 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2008-Sep-16 20:47 < 00:01 Earth 0.0398832636689806 0.0398830697756327 0.0398834575625167 18.0703872872307 18.0666898684761 2454726.366116385 0.0511301317507763 11.3309756908685 6.59526244263684 39.8868523452014 698267.228675705 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2014-Mar-15 21:45 < 00:01 Jupiter 1.852107308718 1.85210539686934 1.85210922056793 5.03495816365649 4.94329298815848 2456732.405988690 0.439893975385908 133.415485788931 48.9963059427973 -50.816496071667 1728108.57359524 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2019-Sep-09 17:26 < 00:01 Earth 0.0935917661954908 0.093591216099649 0.0935923162913591 15.774146688096 15.772341785849 2458736.226427477 0.102791801097991 27.5459297783518 8.75283566829454 -5.5088623820054 545309.032498996 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2030-Jul-12 12:18 < 00:01 Earth 0.316606414156945 0.316605958176353 0.316606870137735 13.7331132002156 13.7325003796409 2462695.012461332 0.315262166221229 27.5937099263878 14.1162870879949 -41.2537902984007 2074866.80522964 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2041-May-02 23:11 < 00:01 Earth 0.268349972058442 0.268349455065715 0.268350489053976 19.720083006399 19.7195794969696 2466642.466187147 0.121368925200179 73.9079524700735 20.1113944761581 -76.8927011136997 1847079.3363756 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2052-Apr-18 06:05 < 00:01 Earth 0.492830616356952 0.492829067318139 0.492832165398707 28.5178327471478 28.5176431640555 2470645.753343068 0.146871163968153 99.0924239029654 19.7171866347817 -39.7297505177891 2329327.60322827 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2061-Sep-07 08:21 < 00:01 Jupiter 1.8435401589971 1.8435384048841 1.84354191311188 5.08998922522263 4.99890804526748 2474074.847817261 0.545676109383403 137.081468990478 40.0495818092587 -54.9609701017714 2170115.84881323 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2081-Sep-28 16:14 < 00:01 Earth 0.198322860511092 0.198320102700782 0.198325618321403 23.1076219669681 23.1070405472066 2481401.176591793 0.240963788874198 137.521775906786 11.1862478586228 0.355870405528198 206681.574817021 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2092-Aug-22 20:28 < 00:01 Earth 0.208844256684927 0.208842076684163 0.208846436689264 13.9528871585175 13.9519727506177 2485382.352718671 0.750354676462524 117.021351231723 11.2250731930423 -21.8300260761746 1121897.81779786 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2103-Jul-04 05:02 < 00:01 Earth 0.318053207584328 0.318052740340858 0.318053674827834 13.2120015140096 13.2113674189289 2489348.709903813 0.950146659626386 42.0673939896526 23.0195374830514 84.1467244466736 1683605.1354864 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2109-Feb-26 23:45 < 00:01 Jupiter 1.84263153713471 1.84262984512357 1.84263322914784 5.21367009779285 5.12474332009062 2491413.489743257 0.558550749722627 139.517044068087 41.0243537122591 -57.605456328227 2214809.59151227 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2114-May-19 03:10 < 00:01 Earth 0.281912806899912 0.281911848594101 0.281913765213881 14.0037235969229 14.0030486579801 2493320.631764706 0.315664275695683 95.5406597082066 19.4189160220502 62.1721789634782 1926630.16399126 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2125-Apr-24 17:39 < 00:01 Earth 0.404519392149436 0.404518152319591 0.404520631984778 25.2949356787419 25.2946752783301 2497314.235211507 0.135135572469452 98.8582855749709 16.5568621054846 -52.3254188360577 2789509.58303657 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2143-Oct-04 14:39 < 00:01 Earth 0.293962740660782 0.293960997198947 0.293964484122768 25.5551191403299 25.5547644534101 2504051.110552839 0.14181038569146 87.6153628758671 9.60808066390271 7.16977829791599 716647.951927927 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2154-Sep-23 13:29 < 00:01 Earth 0.119081412511648 0.119080248315958 0.119082576707359 20.6657899197213 20.6647071708336 2508058.062064146 0.124100817499026 58.1042409424451 10.5764197029298 2.4565508813696 302091.156664778 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2156-Aug-10 16:31 < 00:01 Jupiter 1.85326318905248 1.85326145867029 1.85326491943614 5.36834055421132 5.28251764174248 2508745.188183668 0.490052910187528 139.431858575283 51.1589208318769 -59.0565863558171 1894657.2372529 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2165-Sep-09 11:08 < 00:01 Earth 0.0744156257678503 0.074415193965556 0.0744160575706311 16.2284715766618 16.2262650960051 2512061.963981284 0.085140073384445 23.7859980498939 7.56788577106069 26.6192421627669 836587.917744576 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2176-Jun-15 20:14 < 00:01 Earth 0.323140128976945 0.323139545522855 0.323140712431054 12.6367448672245 12.636092341769 2515994.342840878 0.31832499322279 32.2484473694274 27.6934529112883 -57.3302771988973 1587416.77587631 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
2187-Apr-26 15:15 < 00:01 Earth 0.406158370298199 0.406157142891061 0.40615959770633 24.8311987867417 24.8309345935798 2519961.135397859 0.0969429450608987 69.7354818608086 18.5924508846614 -29.8183873242598 1665847.69945005 T 45 CATAB v2.0f-lin.ifort 2020-Nov-11 14:41:02 2020-Nov-11 14:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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