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39659 (1995 UO44)
Classification: Main-belt Asteroid          SPK-ID: 2039659
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322021353286721 6.7602e-08  
a 2.58914727720526 1.5999e-08 au
q 2.246856478478307 1.7038e-07 au
i 15.77763242029403 6.1899e-06 deg
node 15.79649433157806 1.6545e-05 deg
peri 347.2070787945605 2.5388e-05 deg
M 347.7346690700382 2.4526e-05 deg
tp 2459052.345411854688
(2020-Jul-21.84541185)
0.00010394 TDB
period 1521.715832558119
4.17
1.4104e-05
3.861e-08
d
yr
n .2365750505433153 2.1927e-09 deg/d
Q 2.931438075932213 1.8114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      8677 days (23.76 yr)  
   first obs. used      1995-10-26  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55119  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:32:49  

Additional Information
 Earth MOID = 1.24801 au 
 Jupiter MOID = 2.53196 au 
 T_jup = 3.355 
[ 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 14.2   n/a MPO395376  
diameter diameter 3.822 km 0.655 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.304   0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39659 (1995 UO44)          Discovered 1995-Oct-26 by Hirasawa, M., Suzuki, S. at Nyukasa
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 UO44 = 1999 XA19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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