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6318 Cronkite (1990 WA)
Classification: Mars-crossing Asteroid          SPK-ID: 2006318
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4620362579190617 9.1343e-08  
a 2.51417940319792 7.8996e-09 au
q 1.352537360007173 2.2759e-07 au
i 25.87307032455957 6.4806e-06 deg
node 71.11134167546396 1.7955e-05 deg
peri 12.24618902607577 2.2243e-05 deg
M 147.2353583027092 1.2282e-05 deg
tp 2458404.971651131550
(2018-Oct-13.47165113)
4.724e-05 TDB
period 1456.105435977312
3.99
6.8626e-06
1.879e-08
d
yr
n .2472348437861401 1.1652e-09 deg/d
Q 3.675821446388667 1.1549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      792  
   data-arc span      16328 days (44.70 yr)  
   first obs. used      1974-08-20  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48455  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:17:00  

Additional Information
 Earth MOID = .373763 au 
 Jupiter MOID = 1.66091 au 
 T_jup = 3.179 
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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 15.8   n/a MPO473854  
diameter diameter 1.400 km 0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.504   0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

6318 Cronkite           Discovered 1990 Nov. 18 by E. F. Helin at Palomar.
Named in honor of Walter Cronkite (b. 1916), whose integrity and unflappable character during his 60-year career in radio and television journalism have won him the acclaim and trust of his colleagues and the American public alike. Cronkite worked for the United Press during World War II, taking part in the Normandy beachhead assults and flying in B-17 raids. In 1950 he joined CBS News, becoming anchor of the then-15-minute-long `CBS Evening News' in 1962. The following year this became U.S. network television's first half-hour weeknight news broadcast, marking the debut of the new format with Cronkite's interview of President Kennedy. Since retiring as news anchor in the early 1980s, Cronkite has produced and narrated dozens of award-winning programs.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19961026/MPCPages.arcLast Updated: 2003-09-26

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