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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456407.5 (2013-Apr-25.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083410729669423 4.0738e-08  
q 2.488065899591716 1.2963e-07 au
tp 2456813.082951213035
(2014-Jun-04.58295121)
5.2426e-05 TDB
node 39.07967429753403 1.4086e-05 deg
peri 16.66445536221681 1.737e-05 deg
i 16.2346223321264 4.7826e-06 deg
  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
 Jupiter MOID = 1.63682 au 
 T_jup = 3.115 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.659596703452964E-15 -5.263755106179281E-15 -3.274691779638312E-13 3.359073516109046E-15 -9.241802341583959E-14 -1.042026780594993E-15
q -5.263755106179281E-15 1.680456199801594E-14 9.686440162184397E-13 -1.267201945281318E-14 2.768715387210081E-13 4.578275426913524E-15
tp -3.274691779638312E-13 9.686440162184397E-13 2.748489449464526E-9 -4.304346317553924E-12 5.481957032096768E-10 -1.952799078282875E-12
node 3.359073516109046E-15 -1.267201945281318E-14 -4.304346317553924E-12 1.984152172615816E-10 -1.910539330350913E-10 -5.615090989473066E-12
peri -9.241802341583959E-14 2.768715387210081E-13 5.481957032096768E-10 -1.910539330350913E-10 3.017100129129079E-10 4.938701195710704E-12
i -1.042026780594993E-15 4.578275426913524E-15 -1.952799078282875E-12 -5.615090989473066E-12 4.938701195710704E-12 2.287330822909548E-11

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 1.70734049432274 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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