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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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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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129686519619781 4.0853e-08  
a 3.138647125032954 1.3144e-08 au
q 2.470213677830348 1.3073e-07 au
i 16.27102964905137 4.7881e-06 deg
node 38.9032362331407 1.4051e-05 deg
peri 16.69388503826964 1.7169e-05 deg
M 27.51151779390923 9.1414e-06 deg
tp 2458845.288386498341
(2019-Dec-27.78838650)
5.135e-05 TDB
period 2031.010476381918
5.56
1.2758e-05
3.493e-08
d
yr
n .1772516706271802 1.1135e-09 deg/d
Q 3.807080572235561 1.5944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2418  
   data-arc span      32834 days (89.89 yr)  
   first obs. used      1930-10-30  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41522  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:29:03  

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 1.70734050031973 1.707339463628 1.70734153707998 3.49684912615948 3.35197569356082 2415141.544564179 2.13377683635475 640.643236957405 21.9837732676978 85.386518056531 2889946.44307333 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
1910-Dec-09 18:44 00:02 Jupiter 1.73709547613916 1.73709439829679 1.73709655398153 3.84204283389245 3.71296056290494 2419015.280245635 1.79984200410324 201.81760096988 52.5555775416551 88.4141922066061 2847473.34916704 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
1984-May-06 04:56 < 00:01 Jupiter 1.98081643071047 1.98081562608679 1.98081723533573 2.51390649391726 2.33762704553871 2445826.705762624 0.912817647351291 108.117177069715 13.6482037295198 63.0480793394925 2126469.66881751 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
1994-Oct-05 17:56 < 00:01 Jupiter 1.64793735138818 1.64793691616445 1.64793778661426 3.67146274100391 3.52869092350896 2449631.247564156 0.434127175347237 241.241007199615 16.2591449859289 86.986773163952 3208310.53417161 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
2005-May-10 00:47 < 00:01 Jupiter 1.91479425238324 1.91479370835618 1.91479479642695 3.89368774578576 3.77837139420543 2453500.532738502 0.289489120313049 536.421784255009 19.9042226458098 88.1791373630874 3404633.35463025 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
2078-Aug-27 16:20 00:01 Jupiter 1.79850287038585 1.79850201605393 1.79850372474987 3.04998658451537 2.89145268094101 2480273.180395261 1.26631257220987 482.684113114298 17.5882186121177 84.6699913327378 2418204.58500535 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
2089-Mar-16 12:11 00:01 Jupiter 1.68328650043877 1.68328591596892 1.68328708490871 3.79527374785005 3.66028843626571 2484127.007930336 1.25800167805377 247.277741219969 27.2275155951683 88.6604082574839 3254557.14512092 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
2173-Jan-17 21:44 00:03 Jupiter 1.68887716628353 1.68887622175368 1.68887811092915 3.39535289039665 3.24428132393321 2514749.405735135 2.81840881206206 876.796167311931 24.0825886072839 86.8329826998996 2862616.50765347 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
2183-Aug-22 00:50 00:03 Jupiter 1.8188087356621 1.81880689861859 1.81881057271048 3.92507908540856 3.80458173937502 2518617.534543327 2.95285194146354 403.627586770604 81.3338716164959 84.5931009555998 1914335.11987408 T 40 CATAB v2.0f-lin.ifort 2020-Oct-22 15:29:28 2020-Oct-22 15:29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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