Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ 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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07442484705936167 2.2371e-08  
a 3.375328844948587 1.153e-08 au
q 3.124120511888237 7.5902e-08 au
i 4.668654348324991 8.7698e-07 deg
node 205.9405352042945 2.2173e-05 deg
peri 175.6050030808934 1.9138e-05 deg
M 95.39946116857621 1.5529e-05 deg
tp 2458796.272368813811
(2019-Nov-08.77236881)
9.6865e-05 TDB
period 2265.022722143043
6.20
1.1606e-05
3.178e-08
d
yr
n .1589388029005675 8.1439e-10 deg/d
Q 3.626537178008937 1.2388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3675  
   data-arc span      52806 days (144.57 yr)  
   first obs. used      1876-10-14  
   last obs. used      2021-05-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 14:21:22  

Additional Information
 Earth MOID = 2.12616 au 
 Jupiter MOID = 1.81584 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 8.09   n/a E2021B10 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. 2020-October); 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

[ 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
1911-Aug-02 21:14 00:02 Jupiter 1.78633199386642 1.78633176592207 1.78633222181076 2.82286548574838 2.64957211332309 2419251.384970311 1.6710160842009 73.4709691911729 7.3996415914428 88.6660047869209 6567328.82773957 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
1924-Aug-03 22:50 00:01 Jupiter 1.76342565215305 1.76342543166447 1.76342587264162 2.77448888650202 2.59559873909897 2424001.451139532 1.48858856259495 34.6330065044584 7.72710826355877 -87.4184372184184 7315795.18262691 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
1937-Aug-24 18:36 00:01 Jupiter 1.74567759520533 1.74567740940978 1.74567778100089 2.76242598092203 2.58080892008586 2428770.275110697 1.31660056209381 22.0154820747861 5.66133516392497 -84.2851645229824 7893524.70564987 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
1950-Sep-29 20:27 00:01 Jupiter 1.71701911758514 1.71701893463723 1.71701930053304 3.01646623380904 2.84823607883044 2433554.352085742 1.10503544802095 46.7599298651385 5.50065454757486 -84.5006528905545 7004385.2312015 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
1963-Nov-02 04:08 < 00:01 Jupiter 1.70849905252344 1.70849883507432 1.70849926997256 3.39675903090458 3.24752705748772 2438335.672062345 0.868800464404173 44.7911642880524 8.29094798178263 -88.4499261337578 6787527.05980271 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
1976-Nov-25 11:34 < 00:01 Jupiter 1.74741792043906 1.74741769580382 1.7474181450742 3.48634614869963 3.3444212255924 2443107.981626022 0.648400600473558 29.6574855353455 8.75419040854224 86.6453071203206 6772419.64974383 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
1989-Dec-16 22:14 < 00:01 Jupiter 1.81472520986017 1.81472501371105 1.81472540600929 3.24287659972155 3.09560158461293 2447877.426530423 0.437173976326046 10.5197038054851 7.12644831349093 80.6996232245194 6892771.91093152 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2003-Jan-07 09:40 < 00:01 Jupiter 1.87063296175521 1.87063277053355 1.87063315297686 2.96166087883029 2.80460964514568 2452646.902848175 0.222172737964986 11.8236963230771 5.68708806292083 74.6301362519423 8080727.53624896 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2016-Jan-20 14:10 < 00:01 Jupiter 1.87467309783536 1.87467287526126 1.87467332040946 2.85346804602027 2.69047052799703 2457408.090319654 0.0901662790634606 14.9047400172809 5.33518085981113 63.8051889759866 8058206.08971047 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2029-Jan-19 16:37 < 00:01 Jupiter 1.83424242891494 1.83424218151488 1.834242676315 2.84841192214246 2.68139588458404 2462156.192539160 0.270086767026154 23.0761059641501 6.79507381825473 76.013200432582 6713310.79149441 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2042-Jan-14 14:21 < 00:01 Jupiter 1.78921403192575 1.78921377667706 1.78921428717444 2.81674265271219 2.64333682518837 2466899.097947765 0.499769282024031 30.366473530457 8.03153319017289 85.390562235555 6312040.76478577 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2055-Jan-17 03:04 < 00:01 Jupiter 1.75967066964723 1.75967042854364 1.75967091075083 2.71913463436234 2.53593916289964 2471649.627649302 0.759895782129428 21.6370392159453 8.08974327903747 -89.5586523540313 6672041.72644077 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2068-Feb-07 14:45 00:01 Jupiter 1.73153713827608 1.73153694573718 1.73153733081498 2.67865534422966 2.48934669298297 2476419.114349924 1.04192381966706 19.8227011651169 5.16133805693172 -80.089514024215 7333003.5526792 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2081-Mar-15 12:19 00:01 Jupiter 1.70401259071995 1.70401242907337 1.70401275236653 2.96897633192943 2.7965460711998 2481204.013436417 1.28289016540542 58.1545846281207 4.92139697936625 -85.2059481930778 7566381.09305389 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2094-Apr-16 21:09 00:01 Jupiter 1.70049908714227 1.70049885909023 1.7004993151947 3.37605338649311 3.22514059584253 2485984.381426626 1.4740752800801 79.6507692161648 7.6404721687742 88.0551333791407 7437522.4589237 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2107-May-11 12:31 00:02 Jupiter 1.74662650467702 1.74662617556476 1.74662683378977 3.48047749881863 3.33823729146689 2490756.021819589 1.67321309633313 71.4003436872935 8.80036586896969 80.4353218461005 6590755.26410406 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2120-Jun-03 15:45 00:02 Jupiter 1.82535386574645 1.82535354307909 1.82535418841381 3.27169361665087 3.12664600236713 2495528.156110293 1.88826616009825 22.9290588754721 8.19854940433646 49.8429959816082 6666807.20116274 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2133-Jun-26 15:53 00:02 Jupiter 1.88369238166721 1.88369217501302 1.8836925883214 3.03029839960667 2.87808737006867 2500299.161696477 2.08307017568524 55.66355214758 7.2277226342239 -84.8845881136389 7869992.74922785 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2146-Jul-08 19:30 00:02 Jupiter 1.88303858228871 1.88303831473335 1.88303884984493 2.92720902750332 2.76928130773406 2505059.312213830 2.24695397924438 96.2806422439067 7.22653330335349 85.4609693598898 8667031.9530287 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2159-Jul-08 23:36 00:02 Jupiter 1.83951759915415 1.83951723469464 1.83951796361554 2.8920974764063 2.72824297477007 2509807.483676969 2.42183723828817 118.372605686941 6.68482433123569 83.6429119535159 7312987.05912923 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2172-Jul-02 15:34 00:03 Jupiter 1.79222491859305 1.79222455774223 1.7922252794456 2.81615639186176 2.64301302234683 2514550.148333917 2.66700122120821 119.629474447519 7.6014537779603 85.3432053840164 6463439.64241042 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2185-Jul-05 02:43 00:03 Jupiter 1.75459356115599 1.75459323659796 1.75459388571442 2.66492934844454 2.47716713525269 2519300.613053890 3.01670992223988 68.7312407566667 7.93637557426674 85.6379077667196 6363447.41438353 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22
2198-Jul-29 09:31 00:03 Jupiter 1.71964281256806 1.71964254340032 1.71964308173609 2.60738646254244 2.41108890182627 2524072.896631204 3.4076090832258 57.1988953384453 4.50001513193759 -76.7045035944602 6735879.72206007 T 54 CATAB v2.0g-lin.ifort 2021-Aug-24 14:22:49 2021-Aug-24 14:22

Alternate Designations
 A876 SA = 1949 MO = A911 HF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-16 10:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin