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3184 Raab (1949 QC)
Classification: Main-belt Asteroid          SPK-ID: 2003184
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .261802798974879 3.9953e-08  
a 2.66793324006246 1.0546e-08 au
q 1.96946085033599 1.0458e-07 au
i 8.199374063328824 4.1581e-06 deg
node 97.08549264640583 3.0673e-05 deg
peri 238.1456527544986 3.2174e-05 deg
M 89.83429022159856 1.0775e-05 deg
tp 2458603.307989687594
(2019-Apr-29.80798969)
4.7263e-05 TDB
period 1591.698708363457
4.36
9.438e-06
2.584e-08
d
yr
n .2261734573939201 1.3411e-09 deg/d
Q 3.36640562978893 1.3307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2467  
   data-arc span      25811 days (70.67 yr)  
   first obs. used      1949-08-22  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43144  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:50:37  

Additional Information
 Earth MOID = .973744 au 
 Jupiter MOID = 2.05571 au 
 T_jup = 3.318 
[ 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 12.3   n/a MPO502183  
diameter diameter 19.280 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 274.944 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.047   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3184 Raab (1949 QC)          Discovered 1949-Aug-22 by Johnson, E. L. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1949 QC = 1970 GR1 = 1975 SG = 1980 WF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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