Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456411.5 (2013-Apr-29.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083406246438264 4.0704e-08  
q 2.488054150492713 1.2951e-07 au
tp 2456813.087691437093
(2014-Jun-04.58769144)
5.2424e-05 TDB
node 39.07954974766967 1.4086e-05 deg
peri 16.66596579837383 1.737e-05 deg
i 16.23462937364016 4.7788e-06 deg
  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
 Jupiter MOID = 1.63682 au 
 T_jup = 3.115 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.656826370820463E-15 -5.254473318646733E-15 -3.266671972007601E-13 3.350024216110155E-15 -9.235594400795703E-14 -1.034068737580434E-15
q -5.254473318646733E-15 1.67734667153086E-14 9.659706009498696E-13 -1.264391051075304E-14 2.766678536562823E-13 4.55142513441939E-15
tp -3.266671972007601E-13 9.659706009498696E-13 2.748255185042435E-9 -4.306957866898209E-12 5.481871778891693E-10 -1.942050233522186E-12
node 3.350024216110155E-15 -1.264391051075304E-14 -4.306957866898209E-12 1.984090170453022E-10 -1.910486680268294E-10 -5.59939126251153E-12
peri -9.235594400795703E-14 2.766678536562823E-13 5.481871778891693E-10 -1.910486680268294E-10 3.017064933851711E-10 4.925973622822654E-12
i -1.034068737580434E-15 4.55142513441939E-15 -1.942050233522186E-12 -5.59939126251153E-12 4.925973622822654E-12 2.283684840973087E-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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-25 03:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin