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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 | 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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342671164611542 3.69e-08  
a 2.556536182458892 8.5289e-09 au
q 2.21327744111153 9.5129e-08 au
i 11.11437770038029 4.8298e-06 deg
node 343.8815395058307 1.7075e-05 deg
peri 308.9306596666555 2.3931e-05 deg
M 176.7379479868997 1.6573e-05 deg
tp 2458267.500548123792
(2018-May-29.00054812)
6.8316e-05 TDB
period 1493.05684308949
4.09
7.4715e-06
2.046e-08
d
yr
n .2411160711437311 1.2066e-09 deg/d
Q 2.899794923806255 9.674e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3771  
   data-arc span      41292 days (113.05 yr)  
   first obs. used      1907-04-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37612  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:10:35  

Additional Information
 Earth MOID = 1.21649 au 
 Jupiter MOID = 2.3873 au 
 T_jup = 3.398 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456252.5 (2012-Nov-21.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .135510057258947 3.7007e-08  
q 2.208705230996888 9.5525e-08 au
tp 2456776.220553291549
(2014-Apr-28.72055329)
6.7358e-05 TDB
node 343.9464399564249 1.7054e-05 deg
peri 309.1805240950663 2.3804e-05 deg
i 11.12529581936848 4.8334e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3771  
   data-arc span      41292 days (113.05 yr)  
   first obs. used      1907-04-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37612  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:10:35  

Additional Information
 Jupiter MOID = 2.3873 au 
 T_jup = 3.398 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.369532089569565E-15 -3.524679753707835E-15 1.082927329267261E-12 -2.090481211887025E-15 2.50931302068952E-13 1.623828262955175E-16
q -3.524679753707835E-15 9.125065216223238E-15 -2.788490749023919E-12 4.393519272621993E-15 -6.515703722719805E-13 -1.300170385921959E-16
tp 1.082927329267261E-12 -2.788490749023919E-12 4.537087077720101E-9 -9.396338292876557E-12 1.125352768434771E-9 -2.77012509165129E-12
node -2.090481211887025E-15 4.393519272621993E-15 -9.396338292876557E-12 2.908404681415991E-10 -2.869265397688457E-10 6.470520665134362E-13
peri 2.50931302068952E-13 -6.515703722719805E-13 1.125352768434771E-9 -2.869265397688457E-10 5.666401118147416E-10 -1.280438239413382E-12
i 1.623828262955175E-16 -1.300170385921959E-16 -2.77012509165129E-12 6.470520665134362E-13 -1.280438239413382E-12 2.336202879147723E-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 11.5   n/a MPO265959  
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. 2019-August); 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.]
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

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