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JPL Small-Body Database Browser
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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043629778005796 3.3671e-08  
a 2.190937229282958 6.1139e-09 au
q 1.743190772932542 7.4342e-08 au
i 2.392266831044811 3.8148e-06 deg
node 206.5163930836831 8.0332e-05 deg
peri 139.3924281766936 8.0992e-05 deg
M 352.9338842035773 1.3874e-05 deg
tp 2459023.749926215718
(2020-Jun-23.24992622)
4.571e-05 TDB
period 1184.522540926354
3.24
4.9582e-06
1.357e-08
d
yr
n .3039199234811205 1.2721e-09 deg/d
Q 2.638683685633375 7.3633e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2707  
   data-arc span      32856 days (89.95 yr)  
   first obs. used      1929-09-02  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44278  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:46:57  

Additional Information
 Earth MOID = .736989 au 
 Jupiter MOID = 2.77966 au 
 T_jup = 3.644 
[ 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 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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