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1150 Achaia (1929 RB)
Classification: Main-belt Asteroid          SPK-ID: 2001150
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043629842843997 3.2879e-08  
a 2.190937226799619 4.9688e-09 au
q 1.743190756751062 7.1979e-08 au
i 2.392267427604772 3.7929e-06 deg
node 206.5164527242702 7.4848e-05 deg
peri 139.3923650441648 7.5411e-05 deg
M 352.9338902343885 1.0579e-05 deg
tp 2459023.749906332767
(2020-Jun-23.24990633)
3.4838e-05 TDB
period 1184.522538912441
3.24
4.0295e-06
1.103e-08
d
yr
n .303919923997842 1.0339e-09 deg/d
Q 2.638683696848176 5.9842e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2937  
   data-arc span      33256 days (91.05 yr)  
   first obs. used      1929-09-02  
   last obs. used      2020-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42878  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:31:14  

Additional Information
 Earth MOID = .736989 au 
 Jupiter MOID = 2.77966 au 
 T_jup = 3.644 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456544.5 (2013-Sep-09.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2041023089350108 3.2716e-08  
q 1.743931926123718 7.1611e-08 au
tp 2456653.849694632385
(2013-Dec-27.34969463)
3.3165e-05 TDB
node 206.6695694620568 7.4978e-05 deg
peri 139.0972006320637 7.5542e-05 deg
i 2.389332151615049 3.7903e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2937  
   data-arc span      33256 days (91.05 yr)  
   first obs. used      1929-09-02  
   last obs. used      2020-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42878  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:31:14  

Additional Information
 Jupiter MOID = 2.77966 au 
 T_jup = 3.644 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.070333307035088E-15 -2.339308298918844E-15 3.191739484796553E-13 -8.358825133577361E-15 8.767885430648608E-14 3.773782977895353E-16
q -2.339308298918844E-15 5.128149073779718E-15 -6.819719920873381E-13 1.723935159040044E-14 -1.880155581088785E-13 -8.1877347291655E-16
tp 3.191739484796553E-13 -6.819719920873381E-13 1.099939632564689E-9 -1.558393506556179E-11 3.146230963070158E-10 -3.203809455039649E-13
node -8.358825133577361E-15 1.723935159040044E-14 -1.558393506556179E-11 5.621650218219732E-9 -5.620238836028239E-9 -2.813247342391794E-11
peri 8.767885430648608E-14 -1.880155581088785E-13 3.146230963070158E-10 -5.620238836028239E-9 5.706654657941746E-9 2.801632491443362E-11
i 3.773782977895353E-16 -8.1877347291655E-16 -3.203809455039649E-13 -2.813247342391794E-11 2.801632491443362E-11 1.436666304299467E-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 12.7   n/a MPO473778  
diameter diameter 7.689 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 60.99 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.251   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1150 Achaia (1929 RB)          Discovered 1929-Sep-02 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1929 RB = 1955 SZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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