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181157 (2005 RE33)
Classification: Main-belt Asteroid          SPK-ID: 2181157
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187611033858083 5.9528e-08  
a 3.18757939771186 3.6972e-08 au
q 2.80901895130973 1.9183e-07 au
i 22.88813309185736 6.9482e-06 deg
node 148.2479165894937 1.2304e-05 deg
peri 186.3434672170051 2.4235e-05 deg
M 271.2908049358683 2.222e-05 deg
tp 2459712.719468793611
(2022-May-13.21946879)
0.00013263 TDB
period 2078.691037974022
5.69
3.6165e-05
9.901e-08
d
yr
n .1731859104712699 3.0131e-09 deg/d
Q 3.566139844113991 4.1363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      385  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1999-09-13  
   last obs. used      2020-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52666  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:26  

Additional Information
 Earth MOID = 1.7974 au 
 Jupiter MOID = 1.81957 au 
 T_jup = 3.064 
[ 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 14.97   n/a E2021B55  
diameter diameter 5.697 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181157 (2005 RE33)          Discovered 2005-Sep-14 by CSS at Catalina
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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