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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2130862111088687 2.3134e-08  
a 3.13882887009329 1.2186e-08 au
q 2.46998771884598 7.313e-08 au
i 16.2706768155094 3.6586e-07 deg
node 38.89497751738698 1.6267e-06 deg
peri 16.68773372201911 2.8602e-06 deg
M 62.96071720495619 3.8648e-06 deg
tp 2458845.263935240053
(2019-Dec-27.76393524)
2.0338e-05 TDB
period 2031.186889076829
5.56
1.1829e-05
3.239e-08
d
yr
n .177236275960613 1.0321e-09 deg/d
Q 3.807670021340601 1.4783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2795  
   data-arc span      33018 days (90.40 yr)  
   first obs. used      1930-10-30  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39941  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:51:36  

Additional Information
 Earth MOID = 1.48424 au 
 Jupiter MOID = 1.63732 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 10.29   n/a E2021B10  
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 10.744 h n/a LCDB (Rev. 2020-October); 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:
[Dose, E.V. (2020) Minor Planet Bull. 47, 324-330.]
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 1.70734026941695 1.70733933491818 1.70734120399209 3.49684956500315 3.35197613217281 2415141.544451559 2.04481035733853 584.789543485746 2.95190115447818 84.9769687555328 13468302.1006382 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
1910-Dec-09 18:43 00:02 Jupiter 1.73709548303971 1.73709456672773 1.73709639935199 3.84204238270149 3.71296009727535 2419015.280185291 1.72367184437589 96.0793538166376 39.5508546592997 -75.6088383093403 5040566.73097003 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
1984-May-06 04:56 < 00:01 Jupiter 1.98081629544355 1.98081581257689 1.98081677831112 2.51390765043533 2.33762827778807 2445826.705733927 0.836830722731637 77.1821522588294 3.39610412468876 63.401732380305 11887710.0024524 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
1994-Oct-05 17:57 < 00:01 Jupiter 1.64793721145984 1.64793698309523 1.64793743982661 3.67146270984734 3.52869087952829 2449631.247620182 0.389127568737937 103.290678004769 3.11302830008797 84.2849036148354 15406944.7138129 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
2005-May-10 00:47 < 00:01 Jupiter 1.91479425348181 1.91479400845109 1.91479449851807 3.89368706118254 3.77837068942197 2453500.532784183 0.207395566805387 179.208922456245 4.5593424110241 86.611337764149 26181249.9544199 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
2078-Aug-27 16:20 00:01 Jupiter 1.79850281695628 1.79850226659034 1.79850336734922 3.04998684734649 2.89145295424374 2480273.180593308 1.12997883338258 359.960363762265 3.58923963811395 84.5068547481461 10727704.5306954 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
2089-Mar-16 12:12 00:01 Jupiter 1.68328631474607 1.6832858447175 1.68328678477474 3.79527333306366 3.66028799177658 2484127.008210098 1.14832586945058 105.360560223154 21.6598831458902 -87.7904201749081 6099139.54150799 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
2173-Jan-17 21:45 00:03 Jupiter 1.68887719263004 1.68887646228617 1.68887792307874 3.39535224421632 3.24428065092876 2514749.406353107 2.62785432224896 682.607800702534 3.30052868974097 86.2824582470717 8158614.2049487 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
2183-Aug-22 00:51 00:03 Jupiter 1.8188081862483 1.81880647286872 1.81880989963191 3.92507822523125 3.8045808156552 2518617.535238033 2.76302167905938 191.694658700253 49.9923489585494 68.9134723490678 3968766.88132477 T 49 CATAB v2.0g-lin.ifort 2021-May-03 18:52:51 2021-May-03 18:52
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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