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1033 Simona (A924 RH)
Classification: Main-belt Asteroid          SPK-ID: 2001033
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182545823344403 1.7672e-08  
a 3.000674040432306 1.1482e-08 au
q 2.645830585059186 5.3445e-08 au
i 10.66532995446385 1.4717e-06 deg
node 188.9342233209313 5.2342e-06 deg
peri 217.55573777547 8.829e-06 deg
M 135.9594795083405 1.0195e-05 deg
tp 2458483.476068360428
(2018-Dec-30.97606836)
5.2345e-05 TDB
period 1898.570194029103
5.20
1.0898e-05
2.984e-08
d
yr
n .1896163761193449 1.0884e-09 deg/d
Q 3.355517495805426 1.284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3078  
   data-arc span      31163 days (85.32 yr)  
   first obs. used      1935-11-19  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39896  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:50:50  

Additional Information
 Earth MOID = 1.662 au 
 Jupiter MOID = 2.10049 au 
 T_jup = 3.216 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.24   n/a E2021B10  
diameter diameter 19.195 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.07 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Shipley, H.; Dillard, A.; Kendall, J.; Reichert, M.; et al. (2008) Minor Planet Bull. 35, 99-101.]
geometric albedo albedo 0.196   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1033 Simona (A924 RH)          Discovered 1924-Sep-04 by Van Biesbroeck, G. at Williams Bay
Independent discovery Sept. 5 by S. Belyavskij, Simeis, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A924 RH = 1937 CG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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