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4186 Tamashima (1977 DT1)
Classification: Main-belt Asteroid          SPK-ID: 2004186
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0673712565122026 3.7044e-08  
a 3.10828611090764 1.9498e-08 au
q 2.898876970016364 1.166e-07 au
i 24.08408389119951 3.9599e-06 deg
node 144.7061040717193 1.0044e-05 deg
peri 275.7203340934002 3.3798e-05 deg
M 43.21196080681221 3.0477e-05 deg
tp 2458760.240050557569
(2019-Oct-03.74005056)
0.00017011 TDB
period 2001.612057966126
5.48
1.8834e-05
5.156e-08
d
yr
n .179855031631755 1.6923e-09 deg/d
Q 3.317695251798915 2.0811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3049  
   data-arc span      15954 days (43.68 yr)  
   first obs. used      1977-02-18  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:53:43  

Additional Information
 Earth MOID = 2.01938 au 
 Jupiter MOID = 1.91655 au 
 T_jup = 3.082 
[ 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 11.5   n/a MPO458872  
diameter diameter 29.910 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.060   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4186 Tamashima (1977 DT1)          Discovered 1977-Feb-18 by Kosai and Hurukawa at Kiso
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 DT1 = 1979 PM = 1982 BB8 = 1983 GE2 = 1985 QB = 1988 CX5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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