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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2358925802701533 9.4327e-09  
a 2.192479694361988 4.4741e-09 au
q 1.675290002069022 2.1035e-08 au
i 5.027874499661822 4.1306e-07 deg
node 283.5819939752452 1.256e-05 deg
peri 42.15987933657768 1.3878e-05 deg
M 116.0480615763343 5.0193e-06 deg
tp 2459014.259072316117
(2020-Jun-13.75907232)
1.644e-05 TDB
period 1185.773653579578
3.25
3.6297e-06
9.938e-09
d
yr
n .3035992568339183 9.2932e-10 deg/d
Q 2.709669386654955 5.5295e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2490  
   data-arc span      23961 days (65.60 yr)  
   first obs. used      1955-09-14  
   last obs. used      2021-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43454  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:55:23  

Additional Information
 Earth MOID = .666663 au 
 Jupiter MOID = 2.63526 au 
 T_jup = 3.630 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.19   n/a MPCxxxxx  
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. 2020-October); 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

Alternate Designations
 1955 RY = 1955 SY1 = 1955 TD = 1981 RS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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