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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129686506947309 4.0886e-08  
a 3.138647125319605 1.3152e-08 au
q 2.470213682033393 1.3085e-07 au
i 16.2710295813833 4.7919e-06 deg
node 38.90323625958381 1.4051e-05 deg
peri 16.69388504470876 1.7169e-05 deg
M 27.51151766660381 9.1431e-06 deg
tp 2458845.288387195296
(2019-Dec-27.78838720)
5.1358e-05 TDB
period 2031.010476660155
5.56
1.2766e-05
3.495e-08
d
yr
n .1772516706028977 1.1141e-09 deg/d
Q 3.807080568605818 1.5953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2408  
   data-arc span      32688 days (89.49 yr)  
   first obs. used      1930-10-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41589  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:12:41  

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

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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
1900-May-02 01:04 00:02 Jupiter 1.70734049432274 1.70733945749262 1.70734153122138 3.4968491254632 3.35197569231459 2415141.544553674 2.13468511460809 640.765682396374 21.99586883178 85.3870459495382 2887910.65066519 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
1910-Dec-09 18:44 00:02 Jupiter 1.73709548716015 1.73709440857829 1.73709656574201 3.84204283096625 3.7129605607102 2419015.280231844 1.80063521247488 201.927122922146 52.5876803285926 88.4051899162855 2844951.91213164 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
1984-May-06 04:56 < 00:01 Jupiter 1.98081642679035 1.98081562193011 1.98081723165218 2.51390646556747 2.33762701468905 2445826.705764907 0.913073356604713 108.138229592201 13.6544339524311 63.0497190569295 2125040.6476295 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
1994-Oct-05 17:57 < 00:01 Jupiter 1.6479373544465 1.64793691899841 1.64793778989683 3.67146266617642 3.52869084592425 2449631.247576512 0.434201201149708 241.397081076357 16.2647438888826 86.9868498540086 3205826.95905872 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
2005-May-10 00:47 < 00:01 Jupiter 1.91479425428439 1.91479371020041 1.91479479838503 3.8936877412727 3.77837138967088 2453500.532737098 0.289504571040281 536.767092713707 19.9082789012613 88.1804122948455 3402963.71141739 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
2078-Aug-27 16:20 00:01 Jupiter 1.7985028762834 1.79850202123421 1.79850373136479 3.04998647128378 2.8914525620352 2480273.180412218 1.26716563491649 483.133553559854 17.5974003573501 84.6708496835396 2416215.0849952 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
2089-Mar-16 12:11 00:01 Jupiter 1.68328650106014 1.68328591658943 1.68328708553094 3.7952737190698 3.66028840647484 2484127.007941417 1.25875873876208 247.510723009713 27.2288669869536 88.662160550599 3253172.39189867 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
2173-Jan-17 21:44 00:03 Jupiter 1.68887717332854 1.68887622791298 1.68887811886017 3.39535291899151 3.24428135450446 2514749.405739377 2.82002661947226 877.625179441636 24.094368683124 86.8329632281504 2860288.84381785 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
2183-Aug-22 00:50 00:03 Jupiter 1.81880872848668 1.81880689074459 1.81881056623353 3.9250791160678 3.80458177052238 2518617.534539029 2.95448793683071 403.82531184182 81.3885514202326 84.6006831840231 1913630.52338518 T 39 CATAB v2.0f-lin.ifort 2020-May-20 01:12:53 2020-May-20 01:12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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