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1599 Giomus (1950 WA)
Classification: Main-belt Asteroid          SPK-ID: 2001599
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1434774855666129 3.4375e-08  
a 3.127572412294196 1.3702e-08 au
q 2.678836186650719 1.0824e-07 au
i 6.089989628529191 3.861e-06 deg
node 43.42475538493763 3.1761e-05 deg
peri 356.1921031930947 3.4301e-05 deg
M 188.6169482590055 1.5229e-05 deg
tp 2459962.278043751753
(2023-Jan-17.77804375)
8.9179e-05 TDB
period 2020.270337313705
5.53
1.3276e-05
3.635e-08
d
yr
n .1781939740196758 1.171e-09 deg/d
Q 3.576308637937674 1.5668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2957  
   data-arc span      25505 days (69.83 yr)  
   first obs. used      1950-11-18  
   last obs. used      2020-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41499  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:17:21  

Additional Information
 Earth MOID = 1.68686 au 
 Jupiter MOID = 1.84218 au 
 T_jup = 3.190 
[ 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 11.1   n/a MPO347529  
diameter diameter 41.295 km 0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.53 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Foylan, M.; Rowe, B.; Smith, K.S. (2018) Minor Planet Bull. 45, 132-133.]
geometric albedo albedo 0.026   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1599 Giomus (1950 WA)          Discovered 1950-Nov-17 by Boyer, L. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1950 WA = 1933 SV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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