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768 Struveana (A913 TC)
Classification: Main-belt Asteroid          SPK-ID: 2000768
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.

Note: If the applet is not working, here are some notes that might help.
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129686539944036 4.054e-08  
a 3.138647124487782 1.3072e-08 au
q 2.470213671022214 1.2963e-07 au
i 16.27102985623381 4.7507e-06 deg
node 38.90323617550772 1.405e-05 deg
peri 16.69388506527267 1.7168e-05 deg
M 27.51151799470285 9.131e-06 deg
tp 2458845.288385405964
(2019-Dec-27.78838541)
5.1296e-05 TDB
period 2031.010475852749
5.56
1.2688e-05
3.474e-08
d
yr
n .1772516706733622 1.1073e-09 deg/d
Q 3.80708057795335 1.5855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2483  
   data-arc span      32873 days (90.00 yr)  
   first obs. used      1930-10-30  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41119  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:26:00  

Additional Information
 Earth MOID = 1.48528 au 
 Jupiter MOID = 1.63682 au 
 T_jup = 3.115 
[ 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 10.2   n/a MPO502160  
diameter diameter 32.597 km 0.407 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.76 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:
[Gil-Hutton, R.; Canada, M. (2003) Revista Mexicana de Astronomica y Astrofisica 39, 69-76.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.137   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.717   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=15.46 deg.
U-B UB 0.242   0.049 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=15.46 deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

768 Struveana (A913 TC)          Discovered 1913-Oct-04 by Neujmin, G. at Simeis
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
1900-May-02 01:04 00:02 Jupiter 1.70734050900915 1.70733947337294 1.70734154471387 3.49684907933935 3.35197564547037 2415141.544589137 2.12583443498188 639.545620606394 21.8778729005632 85.3810549826079 2909878.8952996 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
1910-Dec-09 18:44 00:02 Jupiter 1.73709546012613 1.73709438862974 1.73709653162251 3.84204286437555 3.71296059323719 2419015.280259122 1.79292697502493 200.793861838089 52.2809139289648 88.4933940671758 2870342.70286964 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
1984-May-06 04:56 < 00:01 Jupiter 1.98081643963975 1.98081563696838 1.98081724231282 2.51390645144348 2.33762700068661 2445826.705773018 0.91064173474808 107.956535774622 13.5870713585214 63.0318498595468 2141276.10793747 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
1994-Oct-05 17:57 < 00:01 Jupiter 1.64793734679785 1.64793691363889 1.64793777995907 3.67146272640239 3.52869090791092 2449631.247574673 0.433533861081298 239.727948641516 16.211741032004 86.9875661175006 3232147.54061606 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
2005-May-10 00:47 < 00:01 Jupiter 1.91479425000902 1.91479370636063 1.91479479367406 3.89368777328353 3.77837142239727 2453500.532733903 0.289343342646256 533.301195055381 19.860067450142 88.1653675244142 3419596.28052642 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
2078-Aug-27 16:20 00:01 Jupiter 1.7985028608168 1.79850201324576 1.79850370841932 3.0499865410507 2.89145263422662 2480273.180392825 1.25851062989047 478.462474275159 17.5065340780906 84.6623154580346 2437931.14121684 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
2089-Mar-16 12:11 00:01 Jupiter 1.68328650163704 1.68328591718327 1.68328708609091 3.79527377739379 3.66028846699684 2484127.007919669 1.25113089664384 245.128203635268 27.2129780797706 88.643640049378 3267609.83517202 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
2173-Jan-17 21:44 00:03 Jupiter 1.68887715011529 1.68887621370372 1.68887808664032 3.39535306713993 3.24428150742669 2514749.405691992 2.80388691365513 869.17310206025 23.979702461806 86.833226902211 2885333.95744273 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
2183-Aug-22 00:50 00:03 Jupiter 1.81880875991227 1.81880692932475 1.81881059050464 3.92507913954745 3.8045817968606 2518617.534508529 2.93814989164791 401.80118959131 80.832374367528 84.5244443624879 1921012.35194784 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:26:07 2020-Nov-13 04:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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