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3145 Walter Adams (1955 RY)
Classification: Main-belt Asteroid          SPK-ID: 2003145
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2360659179611484 3.7898e-08  
a 2.192444775944991 6.9517e-09 au
q 1.674883287332412 8.3464e-08 au
i 5.028204455927559 4.0999e-06 deg
node 283.5817929768147 4.7985e-05 deg
peri 42.113360336267 4.8862e-05 deg
M 355.8445009501141 1.2182e-05 deg
tp 2459014.187121042711
(2020-Jun-13.68712104)
4.0164e-05 TDB
period 1185.74532594616
3.25
5.6396e-06
1.544e-08
d
yr
n .3036065098656321 1.444e-09 deg/d
Q 2.71000626455757 8.5928e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1698  
   data-arc span      23645 days (64.74 yr)  
   first obs. used      1955-09-14  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4915  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:53:49  

Additional Information
 Earth MOID = .666941 au 
 Jupiter MOID = 2.63532 au 
 T_jup = 3.630 
[ 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 14.1   n/a MPO384780  
diameter diameter 3.449 km 0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.7113 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Wetterer, C.J.; Burns, M.S.; Murphy, K.L. (1998) Minor Planet Bull. 25, 19-20.]
[Owings, L.E.; Warner, B.D.; Pravec, P.; Kusnirak, P. (2011) Minor Planet Bull. 38, 13-14.]
geometric albedo albedo 0.215   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3145 Walter Adams (1955 RY)          Discovered 1955-Sep-14 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1955 RY = 1955 SY1 = 1955 TD = 1981 RS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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