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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3138723029007848 4.1183e-08  
a 2.543394830415109 6.0639e-09 au
q 1.745093637806768 1.0701e-07 au
i 8.880801159022125 3.4025e-06 deg
node 64.49252466838696 2.2319e-05 deg
peri 311.1673003992007 2.2608e-05 deg
M 139.2933792283609 4.2732e-06 deg
tp 2458427.246022365738
(2018-Nov-04.74602237)
1.6712e-05 TDB
period 1481.559519135538
4.06
5.2984e-06
1.451e-08
d
yr
n .2429872005480099 8.6899e-10 deg/d
Q 3.34169602302345 7.9672e-09 au
  Orbit Determination Parameters
   # obs. used (total)      4302  
   data-arc span      30068 days (82.32 yr)  
   first obs. used      1938-01-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:26:21  

Additional Information
 Earth MOID = .762328 au 
 Jupiter MOID = 2.1547 au 
 T_jup = 3.358 
[ 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 11.9   n/a MPO502168  
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-August); 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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