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168 Sibylla (A876 SA)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000168
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07406998068717223 4.0695e-08  
a 3.373861223791939 1.457e-08 au
q 3.123959388104471 1.4268e-07 au
i 4.669318179853406 4.444e-06 deg
node 205.960019117547 4.8615e-05 deg
peri 175.3661186824971 5.5539e-05 deg
M 32.68466043215955 2.6277e-05 deg
tp 2458794.991056880395
(2019-Nov-07.49105688)
0.00016519 TDB
period 2263.545606558086
6.20
1.4662e-05
4.014e-08
d
yr
n .1590425211477893 1.0302e-09 deg/d
Q 3.623763059479407 1.5649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3221  
   data-arc span      51247 days (140.31 yr)  
   first obs. used      1880-04-13  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:11:01  

Additional Information
 Earth MOID = 2.1267 au 
 Jupiter MOID = 1.8169 au 
 T_jup = 3.143 
[ 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 8.1   n/a MPO502154 IRAS observations used: 6
diameter diameter 145.366 km 3.219 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 47.009 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Benishek, V.; Brinsfield, J.W. (2008) Minor Planet Bull. 35, 104-105.]
geometric albedo albedo 0.056   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.745   0.013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=1.40, mean=7.89, max.=17.63) deg.
U-B UB 0.384   0.027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=1.68, mean=11.14, max.=17.66) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

168 Sibylla (A876 SA)          Discovered 1876-Sep-28 by Watson, J. C. at Ann Arbor
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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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
1911-Aug-02 21:15 00:02 Jupiter 1.78633179596922 1.78633136580011 1.78633222613834 2.82286459429821 2.64957114275362 2419251.385113001 1.92827854757845 91.5428416403199 14.1533732297599 86.8951786502392 3042490.87978779 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
1924-Aug-03 22:50 00:02 Jupiter 1.76342534621694 1.76342493981039 1.7634257526235 2.77448792802138 2.59559768143186 2424001.451272639 1.70862738982661 59.1796272374745 13.1698179074283 -88.3800273427496 3173554.83142879 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
1937-Aug-24 18:36 00:02 Jupiter 1.74567731504057 1.74567690247451 1.74567772760663 2.76242502261329 2.58080786312681 2428770.275242899 1.50371002578385 50.3879085034124 9.99379893093251 -78.2236713900521 3648491.63168682 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
1950-Sep-29 20:27 00:01 Jupiter 1.71701900120843 1.71701858468137 1.71701941773549 3.01646548890829 2.84823527723644 2433554.352209631 1.2531847965209 65.2381792940274 12.7071330777848 -81.8238775800538 3449438.48159548 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
1963-Nov-02 04:08 < 00:01 Jupiter 1.70849912022522 1.7084987062424 1.70849953420804 3.39675890842895 3.24752693459009 2438335.672153032 0.97382342794293 60.1693290702811 16.0454454769993 -88.393035415595 3296047.14015878 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
1976-Nov-25 11:34 < 00:01 Jupiter 1.7474181113547 1.74741769084946 1.74741853185993 3.48634695318601 3.34442207925268 2443107.981706826 0.718754160258017 47.0008379593809 16.5417439277265 85.5092703669768 3392059.13500963 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
1989-Dec-16 22:14 < 00:01 Jupiter 1.81472542441902 1.81472501005197 1.81472583878608 3.24287802663796 3.09560309640956 2447877.426524230 0.487647948531937 44.1287013142694 14.9589994182927 81.6674253144251 3634143.67839282 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2003-Jan-07 09:40 < 00:01 Jupiter 1.87063314958927 1.87063274140164 1.87063355777689 2.96166198810108 2.80461083185234 2452646.902761526 0.297849689069724 44.2321636560761 11.8774092735196 77.6717934398952 3868843.60049544 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2016-Jan-20 14:10 < 00:01 Jupiter 1.87467323168158 1.87467282750798 1.87467363585518 2.85346822017588 2.6904707237659 2457408.090205366 0.290307946405895 42.4850937678349 12.2318616939216 80.3276272549752 3599982.25192513 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2029-Jan-19 16:37 < 00:01 Jupiter 1.83424245466899 1.83424205112527 1.83424285821261 2.84841138466991 2.68139531510061 2462156.192353657 0.477442343277014 46.2902789740352 13.9388326991919 87.8554015076388 3225664.86425309 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2042-Jan-14 14:21 < 00:01 Jupiter 1.78921387630686 1.78921347567196 1.78921427694175 2.81674182096466 2.64333592231102 2466899.097663157 0.736342273860916 52.2394012904613 13.5116276348374 -88.1480978004079 3162248.39087161 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2055-Jan-17 03:03 00:01 Jupiter 1.75967036338091 1.75966996424299 1.75967076251883 2.71913365672631 2.53593808055446 2471649.627194719 1.04419904922266 50.4919581495472 11.7030059763454 -83.6786316380898 3331012.88596746 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2068-Feb-07 14:44 00:01 Jupiter 1.73153683337859 1.7315364338954 1.73153723286177 2.67865390190903 2.48934510528988 2476419.113782830 1.37782671213967 49.0407316059924 9.05031555737087 -78.6200821926054 3350709.01369839 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2081-Mar-15 12:18 00:02 Jupiter 1.70401245684297 1.70401205904023 1.70401285464561 2.96897456711783 2.79654418262616 2481204.012795111 1.66400102231001 79.4428375869231 12.4838854962789 -83.7289869260336 3274700.74140456 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2094-Apr-16 21:08 00:02 Jupiter 1.70049910545558 1.70049870210986 1.70049950880121 3.37605269324988 3.22513987097069 2485984.380774668 1.89225433772189 101.948671167955 15.5256919278825 -89.2162860455485 3288748.06403774 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2107-May-11 12:30 00:02 Jupiter 1.74662656927702 1.74662614333305 1.74662699522119 3.48047844658132 3.33823828418355 2490756.021086681 2.13066981020996 94.4942364249568 15.9337613059472 84.9745200861747 3414081.06823178 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2120-Jun-03 15:44 00:02 Jupiter 1.82535397205196 1.82535354627112 1.8253543978329 3.2716956889947 3.12664817867198 2495528.155269192 2.39299630442365 49.1577223403881 15.7281469682436 75.6926795881082 3335024.88870278 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2133-Jun-26 15:52 00:03 Jupiter 1.88369258733396 1.88369219771123 1.8836929769568 3.03030010665799 2.87808918359451 2500299.160776746 2.63198272552408 79.699273152607 15.0085674675523 88.8983140924038 3997913.97141035 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2146-Jul-08 19:28 00:03 Jupiter 1.88303884135653 1.88303839713399 1.88303928558003 2.92720956842742 2.76928190095606 2505059.311265959 2.82696181869306 126.885541623521 12.5616423656928 85.2190966017476 3781681.63438488 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2159-Jul-08 23:35 00:03 Jupiter 1.83951775385534 1.83951726207621 1.83951824563604 2.89209725600245 2.72824275439048 2509807.482725485 3.03141968418042 152.011411315401 14.0776257648707 84.9463808769411 3304455.78280542 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2172-Jul-02 15:32 00:03 Jupiter 1.79222485163802 1.79222439282144 1.79222531045531 2.81615594583346 2.64301253943118 2514550.147350155 3.32474015877651 151.990125437901 14.3195521644082 87.1724183451525 3061535.14432108 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2185-Jul-05 02:41 00:04 Jupiter 1.7545933399386 1.75459291093664 1.75459376894056 2.66492877565776 2.47716649340368 2519300.611951448 3.74787070800825 93.6499944755858 13.3932125719584 89.7539991516996 3068478.26788981 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11
2198-Jul-29 09:29 00:04 Jupiter 1.7196425591642 1.71964213933172 1.71964297899687 2.60738477962293 2.41108705066045 2524072.895374881 4.21799889501864 81.4240164340051 7.70645833960204 -77.878137434462 3260864.35812936 T 44 CATAB v2.0f-lin.ifort 2020-Aug-24 22:11:27 2020-Aug-24 22:11

Alternate Designations
 A876 SA = 1949 MO = A911 HF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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