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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4614408760398012 8.7821e-08  
a 2.515192486454968 7.6718e-09 au
q 1.354579862096462 2.1884e-07 au
i 25.85498215110907 5.7933e-06 deg
node 71.10415937665863 1.4911e-05 deg
peri 12.24872054032081 1.7811e-05 deg
M 196.6860834704989 1.1563e-05 deg
tp 2459861.461191652704
(2022-Oct-08.96119165)
4.9477e-05 TDB
period 1456.985626524919
3.99
6.6661e-06
1.825e-08
d
yr
n .2470854848847357 1.1305e-09 deg/d
Q 3.675805110813474 1.1212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      16738 days (45.83 yr)  
   first obs. used      1974-08-20  
   last obs. used      2020-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:33:41  

Additional Information
 Earth MOID = .375358 au 
 Jupiter MOID = 1.66157 au 
 T_jup = 3.179 
[ 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 15.70   n/a E2021B10  
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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