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233521 (2007 GU44)
Classification: Main-belt Asteroid          SPK-ID: 2233521
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028688579817506 8.6212e-08  
a 2.329585762266775 1.8225e-08 au
q 2.089943935331846 2.0144e-07 au
i 1.741754642287889 9.0139e-06 deg
node 146.0255987092632 0.00045919 deg
peri 3.104799742894911 0.00046438 deg
M 306.6171392466789 7.0617e-05 deg
tp 2459193.082058605717
(2020-Dec-09.58205861)
0.00025578 TDB
period 1298.72285073716
3.56
1.524e-05
4.172e-08
d
yr
n .2771953999235962 3.2528e-09 deg/d
Q 2.569227589201704 2.01e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      9162 days (25.08 yr)  
   first obs. used      1994-09-28  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60914  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 01:35:59  

Additional Information
 Earth MOID = 1.1011 au 
 Jupiter MOID = 2.42196 au 
 T_jup = 3.564 
[ 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 17.7   n/a MPO454689  
diameter diameter 1.435 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233521 (2007 GU44)          Discovered 2007-Apr-14 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2007 GU44 = 1994 SJ6 = 2005 UC228 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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