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JPL Small-Body Database Browser
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2439 Ulugbek (1977 QX2)
Classification: Main-belt Asteroid          SPK-ID: 2002439
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1536130095771192 3.2759e-08  
a 3.143024145788078 1.5169e-08 au
q 2.660214747580017 1.0102e-07 au
i .283312295384571 3.7575e-06 deg
node 114.525758895645 0.00080541 deg
peri 335.0562403028912 0.00080552 deg
M 182.4662916748894 1.441e-05 deg
tp 2460004.187064392222
(2023-Feb-28.68706439)
8.5319e-05 TDB
period 2035.260495542149
5.57
1.4734e-05
4.034e-08
d
yr
n .1768815347168146 1.2805e-09 deg/d
Q 3.625833543996139 1.7499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2465  
   data-arc span      23688 days (64.85 yr)  
   first obs. used      1954-07-03  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48661  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 20:59:16  

Additional Information
 Earth MOID = 1.67674 au 
 Jupiter MOID = 1.57704 au 
 T_jup = 3.191 
[ 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 11.8   n/a MPO452196  
diameter diameter 21.457 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2439 Ulugbek (1977 QX2)          Discovered 1977-Aug-21 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 QX2 = 1952 DT2 = 1955 UD = 1972 TC4 = 1974 CM1 = 1979 BE = 1980 GN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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