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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07406998346248737 3.9283e-08  
a 3.373861222924629 1.4123e-08 au
q 3.123959377937874 1.372e-07 au
i 4.669317664874996 4.3653e-06 deg
node 205.9600224637056 4.8266e-05 deg
peri 175.3661152169489 5.5235e-05 deg
M 32.68466086885661 2.6211e-05 deg
tp 2458794.991054213852
(2019-Nov-07.49105421)
0.0001648 TDB
period 2263.545605685259
6.20
1.4212e-05
3.891e-08
d
yr
n .1590425212091164 9.986e-10 deg/d
Q 3.623763067911383 1.5169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3371  
   data-arc span      51335 days (140.55 yr)  
   first obs. used      1880-04-13  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:38  

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

[ 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 21:15 00:02 Jupiter 1.7863317862391 1.78633136773402 1.78633220474417 2.82286451851714 2.64957106104134 2419251.385133199 1.90584746193906 90.3202219049129 13.9140495718553 87.151417067898 3102116.52061261 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
1924-Aug-03 22:50 00:02 Jupiter 1.76342533666827 1.76342493322219 1.76342574011436 2.77448789770598 2.59559764802506 2424001.451295702 1.68978161019564 58.0496758938623 13.0848508420084 -88.4401134527326 3191815.62419375 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
1937-Aug-24 18:36 00:01 Jupiter 1.74567730882065 1.74567689903731 1.74567771860409 2.76242504253992 2.58080788378583 2428770.275258387 1.48818047195086 49.6925515859846 9.86530357226448 -78.1963476565788 3667334.57759231 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
1950-Sep-29 20:27 00:01 Jupiter 1.7170190042099 1.71701859557956 1.71701941284034 3.01646549245142 2.8482352812916 2433554.352215803 1.24187742185559 64.6095706890609 12.2675513226906 -81.4237452578959 3567078.06465335 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
1963-Nov-02 04:08 < 00:01 Jupiter 1.70849913021222 1.70849873080694 1.70849952961749 3.39675890689237 3.24752693387528 2438335.672164408 0.967001061958766 59.7808907451295 15.4421303508921 -87.9322910557911 3412658.50679172 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
1976-Nov-25 11:34 < 00:01 Jupiter 1.74741811731552 1.74741770742093 1.74741852721012 3.48634694958018 3.34442207598824 2443107.981715457 0.715610436949663 46.3487212635778 16.1385348026536 85.6764876751624 3455169.64988703 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
1989-Dec-16 22:14 < 00:01 Jupiter 1.81472542088778 1.81472500965252 1.81472583212304 3.24287803804976 3.09560310807089 2447877.426527104 0.487251261461244 43.2660984188157 14.8773503114761 81.8079658886967 3645774.79538785 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2003-Jan-07 09:40 < 00:01 Jupiter 1.87063314105885 1.87063273485806 1.87063354725974 2.9616619749797 2.80461081725997 2452646.902762182 0.296483886559081 43.8928070661314 11.8153192078367 77.6957591869494 3883045.43456155 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2016-Jan-20 14:10 < 00:01 Jupiter 1.8746732239055 1.87467282607644 1.87467362173445 2.85346815565178 2.69047065463613 2457408.090204380 0.281282165478723 42.2148947080689 11.912819001507 79.8831378961686 3688141.83082692 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2029-Jan-19 16:37 < 00:01 Jupiter 1.83424244808796 1.83424205456699 1.83424284160883 2.8484112936055 2.68139521774618 2462156.192340835 0.463148649721669 45.7822312802602 13.5920925016636 87.3959145019273 3315911.70523748 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2042-Jan-14 14:21 < 00:01 Jupiter 1.78921386828969 1.78921347552402 1.78921426105525 2.81674174476159 2.64333584030646 2466899.097663225 0.717156857800175 51.2139339797628 13.3427561663382 -88.3347280618324 3207721.70858569 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2055-Jan-17 03:03 00:01 Jupiter 1.75967035366721 1.7596699576797 1.75967074965472 2.71913363407826 2.53593805522252 2471649.627180723 1.01982269258973 49.3293135964015 11.6906655791411 -83.8079414953247 3344868.23697625 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2068-Feb-07 14:44 00:01 Jupiter 1.73153682731597 1.73153643062111 1.73153722401082 2.67865389578151 2.48934509800834 2476419.113752509 1.34802729202645 48.4087932637653 8.99515760132441 -78.8089568032856 3352619.21675788 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2081-Mar-15 12:18 00:02 Jupiter 1.70401246093792 1.70401207245436 1.70401284942148 2.96897453814586 2.79654415229497 2481204.012772343 1.62920235147418 78.3045572306502 12.2544509009131 -84.0111393014214 3336985.28667458 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2094-Apr-16 21:08 00:02 Jupiter 1.70049911398336 1.70049872156095 1.70049950640578 3.37605264378939 3.22513981997033 2485984.380740474 1.85356731884282 100.191464470041 15.0627062658271 -89.6216454325748 3373643.94271736 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2107-May-11 12:30 00:02 Jupiter 1.74662657010949 1.74662614711872 1.74662699310035 3.48047845531587 3.33823829335951 2490756.021062221 2.08796490346386 92.4959619109774 15.6641138440781 84.6105609307814 3475337.74113908 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2120-Jun-03 15:44 00:02 Jupiter 1.82535396344042 1.82535353922365 1.8253543876573 3.27169572195478 3.12664821246093 2495528.155241753 2.3457558063033 48.1959780237674 15.7209633189905 75.6789356398597 3367692.21398762 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2133-Jun-26 15:51 00:03 Jupiter 1.88369257848282 1.88369219111671 1.88369296584904 3.03030011649898 2.87808919322183 2500299.160738501 2.58125512962794 78.2447227890748 14.8004730931633 88.667095776105 4014548.16678662 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2146-Jul-08 19:28 00:03 Jupiter 1.88303883779841 1.88303839508532 1.88303928051257 2.92720951455095 2.76928184370018 2505059.311213531 2.77420095274705 124.485298494711 12.2241122578703 84.9621795045133 3886338.8912564 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2159-Jul-08 23:35 00:03 Jupiter 1.83951775239617 1.83951726273614 1.83951824205787 2.89209717306177 2.72824266633461 2509807.482678941 2.97612179615549 149.260934121868 13.6490030733699 84.7176557093367 3408334.78200989 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2172-Jul-02 15:32 00:03 Jupiter 1.79222484701301 1.79222439093751 1.79222530308932 2.8161558924913 2.64301248213313 2514550.147298945 3.26470118472837 149.326843093748 14.09554118398 86.9975425326705 3121874.74148676 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2185-Jul-05 02:41 00:04 Jupiter 1.75459333238355 1.75459290528408 1.75459375948303 2.66492876488773 2.47716648097819 2519300.611899253 3.68090908516628 91.9564779848382 13.2795252307722 89.5988463388676 3083098.48891327 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32
2198-Jul-29 09:29 00:04 Jupiter 1.71964255552645 1.71964213905551 1.71964297199758 2.6073847584948 2.41108702738004 2524072.895308988 4.14356012225833 80.2427660115048 7.66956905075212 -77.9639527599827 3265290.50823925 T 46 CATAB v2.0f-lin.ifort 2020-Nov-13 04:32:47 2020-Nov-13 04:32

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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