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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 ]

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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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2129686506985504 4.0966e-08  
a 3.138647128135108 1.3581e-08 au
q 2.470213684237294 1.3123e-07 au
i 16.27103002633634 4.8695e-06 deg
node 38.90323429320135 1.4546e-05 deg
peri 16.69388841836749 1.7633e-05 deg
M 27.51151516700497 9.6502e-06 deg
tp 2458845.288401088425
(2019-Dec-27.78840109)
5.4151e-05 TDB
period 2031.010479393012
5.56
1.3182e-05
3.609e-08
d
yr
n .177251670364394 1.1504e-09 deg/d
Q 3.807080572032922 1.6473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2242  
   data-arc span      32575 days (89.19 yr)  
   first obs. used      1930-10-30  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42727  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:39:40  

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 1.70734044059957 1.70733936388567 1.70734151738636 3.49684940759374 3.3519759819818 2415141.544439615 2.20893524304035 660.99272880501 22.9728763717239 85.3664899394115 2842912.96417903 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
1910-Dec-09 18:43 00:02 Jupiter 1.73709555858317 1.73709443962083 1.7370966775454 3.84204296625092 3.71296070609774 2419015.280159938 1.863289243805 206.251445571627 54.6426989255498 88.4679562772627 2797536.32630547 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
1984-May-06 04:56 < 00:01 Jupiter 1.98081641175448 1.98081557405956 1.98081724945109 2.51390649588906 2.33762704590864 2445826.705730008 0.939044197120939 112.370578384854 13.7354192309849 63.0077175370539 2121463.18245413 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
1994-Oct-05 17:56 < 00:01 Jupiter 1.64793736116943 1.64793692224545 1.64793780009546 3.67146283935651 3.52869102670549 2449631.247544112 0.444820864284096 245.325021260249 16.7009168744827 87.1402314481605 3184187.86550299 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
2005-May-10 00:47 < 00:01 Jupiter 1.91479426585357 1.91479371414859 1.91479481757651 3.89368789425215 3.77837154802665 2453500.532719261 0.292139262063699 549.885017135709 20.0621892542486 88.1664824834071 3361022.22387968 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
2078-Aug-27 16:20 00:01 Jupiter 1.79850293853452 1.79850206235414 1.79850381474864 3.04998632633569 2.89145241477756 2480273.180473840 1.3149551530066 495.337545151589 18.2251279500686 84.6816079857902 2392014.24223807 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
2089-Mar-16 12:12 00:01 Jupiter 1.68328647802074 1.68328588791982 1.68328706812166 3.7952737924719 3.66028848070225 2484127.008000645 1.30736782099089 254.074949521806 27.5882889929804 88.8070943783476 3239529.82418557 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
2173-Jan-17 21:44 00:03 Jupiter 1.68887724614259 1.68887627317243 1.68887821923516 3.3953526538526 3.24428108368415 2514749.405888398 2.92719613668202 904.5945804639 25.127777428429 86.843364186714 2837173.41540099 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
2183-Aug-22 00:50 00:03 Jupiter 1.81880860117084 1.81880671058814 1.81881049175829 3.92507910413745 3.80458174964584 2518617.534703557 3.06501218206139 412.904424025644 84.1534532042133 84.6919882505926 1866082.10067436 T 37 CATAB v2.0f-lin.ifort 2020-Jan-28 17:39:57 2020-Jan-28 17:40
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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