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29910 Segre (1999 JV8)
Classification: Main-belt Asteroid          SPK-ID: 2029910
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1148925870185255 4.405e-08  
a 3.063768967488494 1.8166e-08 au
q 2.711764624786665 1.3523e-07 au
i 10.6951473208822 4.0525e-06 deg
node 89.75659930482873 2.421e-05 deg
peri 297.5624426679037 2.9159e-05 deg
M 180.2842881931061 1.6196e-05 deg
tp 2459978.335933951366
(2023-Feb-02.83593395)
9.0407e-05 TDB
period 1958.765500707815
5.36
1.7421e-05
4.77e-08
d
yr
n .1837892284042736 1.6346e-09 deg/d
Q 3.415773310190324 2.0253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1265  
   data-arc span      8070 days (22.09 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53838  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:44:20  

Additional Information
 Earth MOID = 1.73801 au 
 Jupiter MOID = 2.04235 au 
 T_jup = 3.196 
[ 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 13.7   n/a MPO384999  
diameter diameter 6.673 km 0.781 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.173   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

29910 Segre           Discovered 1999 May 14 by P. G. Comba at Prescott.
Corrado Segre (1863-1924) was a professor of geometry at the University of Turin. He did research on geometric properties invariant under linear transformations, the role of imaginary elements in geometry, curves and ruled surfaces in hyperspace, as well as differential geometry.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1999 JV8 = 1998 FA89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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