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1550 Tito (1937 WD)
Classification: Main-belt Asteroid          SPK-ID: 2001550
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3136442182404806 4.5014e-08  
a 2.543985510213138 6.5647e-09 au
q 1.746079163647228 1.173e-07 au
i 8.881042473265666 3.7659e-06 deg
node 64.50002360821752 2.2663e-05 deg
peri 311.2029867210859 2.3027e-05 deg
M 42.08789504121101 4.1432e-06 deg
tp 2458427.229319154037
(2018-Nov-04.72931915)
1.6849e-05 TDB
period 1482.075666731937
4.06
5.7367e-06
1.571e-08
d
yr
n .242902577837892 9.4021e-10 deg/d
Q 3.341891856779048 8.6237e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3920  
   data-arc span      29695 days (81.30 yr)  
   first obs. used      1938-01-01  
   last obs. used      2019-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:10:55  

Additional Information
 Earth MOID = .762564 au 
 Jupiter MOID = 2.15139 au 
 T_jup = 3.357 
[ 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 MPO416722  
diameter diameter 11.391 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 54.2 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Cooney, W.R.; Pozzoli, V.; Gross, J. (2004) Minor Planet Bull. 31, 23-24.]
[Higgins, D.; Benishek, V. (2011) Minor Planet Bull. 38, 79-80.]
geometric albedo albedo 0.257   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1550 Tito (1937 WD)          Discovered 1937-Nov-29 by Protitch, M. B. at Belgrade
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1937 WD = 1941 XA = 1941 YE = 1945 WB = 1949 UR = 1983 CG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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