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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .212673710191718 4.1356e-08  
a 3.137465399026078 1.6704e-08 au
q 2.470208992017063 1.3152e-07 au
i 16.27331241212363 4.8933e-06 deg
node 38.90479931731722 1.6599e-05 deg
peri 16.73304031309601 1.9983e-05 deg
M 316.5592402683503 1.2897e-05 deg
tp 2458845.441151707129
(2019-Dec-27.94115171)
7.3808e-05 TDB
period 2029.863546569645
5.56
1.6211e-05
4.438e-08
d
yr
n .177351822790443 1.4163e-09 deg/d
Q 3.804721806035093 2.0257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1939  
   data-arc span      32430 days (88.79 yr)  
   first obs. used      1930-10-30  
   last obs. used      2019-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45146  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:11:56  

Additional Information
 Earth MOID = 1.48486 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 10.21   n/a PDS3 (MPC 17259)  
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-January); 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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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