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JPL Small-Body Database Browser
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639 Latona (A907 OA)
Classification: Main-belt Asteroid          SPK-ID: 2000639
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066810479108434 3.9848e-08  
a 3.017893640969764 1.3841e-08 au
q 2.695941584867639 1.2124e-07 au
i 8.55523967751518 4.7261e-06 deg
node 279.8355542371007 2.986e-05 deg
peri 70.69798305928327 3.7076e-05 deg
M 81.95562863478452 2.1962e-05 deg
tp 2458164.556098217006
(2018-Feb-15.05609822)
0.0001169 TDB
period 1914.936255827434
5.24
1.3173e-05
3.607e-08
d
yr
n .1879958139099757 1.2933e-09 deg/d
Q 3.339845697071889 1.5317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2501  
   data-arc span      41048 days (112.38 yr)  
   first obs. used      1907-07-20  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45639  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:46:22  

Additional Information
 Earth MOID = 1.70375 au 
 Jupiter MOID = 2.07569 au 
 T_jup = 3.222 
[ 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 8.3   n/a MPO502159 IRAS observations used: 15
diameter diameter 78.509 km 1.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.193 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Riccioli, D.; Blanco, C.; Cigna, M. (2001) Planet. Space Sci. 49, 657-671.]
[Warner, B.D. (2008) Minor Planet Bull. 35, 56-60.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.123   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.836   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=3.31, mean=9.42, max.=16.89) deg.
U-B UB 0.477   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=5.44, mean=10.44, max.=16.89) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

639 Latona (A907 OA)          Discovered 1907-Jul-19 by Lohnert, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2101-Feb-28 14:26 < 00:01 Hygie 0.037471289383283 0.0374686767535406 0.0374739030321811 3.45695150745938 3.45695120918873 2488493.101054589 0.56615617015636 355.713883091766 48.2190470343674 -69.9508563148996 109078.72589596 T 35 CATAB v2.0f-lin.ifort 2019-Dec-13 20:46:39 2019-Dec-13 20:46

Alternate Designations
 A907 OA = A913 UB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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