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672 Astarte (A908 SH)
Classification: Main-belt Asteroid          SPK-ID: 2000672
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342933117136314 2.2159e-08  
a 2.556018380188146 6.9982e-09 au
q 2.212762207111768 5.7182e-08 au
i 11.11612488813232 2.9994e-07 deg
node 343.8775922524953 1.8201e-06 deg
peri 309.064727049142 4.1421e-06 deg
M 272.0757012551387 5.2583e-06 deg
tp 2459761.044707971791
(2022-Jun-30.54470797)
2.2778e-05 TDB
period 1492.60325920444
4.09
6.13e-06
1.678e-08
d
yr
n .2411893433703746 9.9054e-10 deg/d
Q 2.899274553264524 7.938e-09 au
  Orbit Determination Parameters
   # obs. used (total)      4414  
   data-arc span      41756 days (114.32 yr)  
   first obs. used      1907-04-04  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36123  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:53:17  

Additional Information
 Earth MOID = 1.21545 au 
 Jupiter MOID = 2.38649 au 
 T_jup = 3.399 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456960.5 (2014-Oct-30.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1355292099136059 2.2145e-08  
q 2.209328300950823 5.7229e-08 au
tp 2456775.568009399675
(2014-Apr-28.06800940)
1.7233e-05 TDB
node 343.9346348745049 1.8178e-06 deg
peri 308.9815310080807 4.117e-06 deg
i 11.12443912152354 2.9996e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      4414  
   data-arc span      41756 days (114.32 yr)  
   first obs. used      1907-04-04  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36123  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:53:17  

Additional Information
 Jupiter MOID = 2.38649 au 
 T_jup = 3.399 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.903880913804742E-16 -1.260322188679403E-15 2.364867361158681E-13 2.336883798622371E-14 1.566903158786768E-15 -1.374179952256291E-15
q -1.260322188679403E-15 3.275113238294888E-15 -5.872083599157626E-13 -6.03408773213953E-14 2.914256818518794E-15 3.595676536422812E-15
tp 2.364867361158681E-13 -5.872083599157626E-13 2.969753325346352E-10 1.879545132872325E-12 5.340826257399243E-11 -1.859815757758719E-12
node 2.336883798622371E-14 -6.03408773213953E-14 1.879545132872325E-12 3.304572654122077E-12 -4.092101040732025E-12 -3.971607963166277E-14
peri 1.566903158786768E-15 2.914256818518794E-15 5.340826257399243E-11 -4.092101040732025E-12 1.694934285014836E-11 -4.417343532230302E-13
i -1.374179952256291E-15 3.595676536422812E-15 -1.859815757758719E-12 -3.971607963166277E-14 -4.417343532230302E-13 8.997530668204344E-14

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.61   n/a E2021B10  
diameter diameter 35.584 km 0.495 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 22.572 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2011) Minor Planet Bull. 38, 50-52.]
[Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Santana-Ros, T.; et al. (2015) Planet. Space Sci. 118, 256-266.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.033   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

672 Astarte (A908 SH)          Discovered 1908-Sep-21 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A908 SH = A907 GJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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