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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
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 
[ 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 15.8   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1923-Dec-07 11:07 < 00:01 Earth 0.322879393361869 0.322877730064346 0.322881056734714 14.5595486592504 14.5589818556901 2423760.963089334 0.0593666951020129 289.694774347117 38.4572041689109 -75.1707432682411 1207289.1675366 T 13 CATAB v2.0e-lin.ifort 2019-May-30 01:17:06 2019-May-30 01:17
1982-Dec-04 04:44 < 00:01 Earth 0.452986195677116 0.452985165263008 0.452987226105567 14.0552390227219 14.0548205225706 2445307.697530809 0.0658622408653591 169.196160642791 31.5874494669603 75.8883427044237 2146385.43170039 T 13 CATAB v2.0e-lin.ifort 2019-May-30 01:17:06 2019-May-30 01:17
1986-Dec-06 11:11 < 00:01 Earth 0.364322997003967 0.364322329765663 0.36432366424339 13.8082732431802 13.8077435861662 2446770.966189165 0.0579989318372296 98.2937835694664 31.2294366415723 82.9247610727246 1730722.58561853 T 13 CATAB v2.0e-lin.ifort 2019-May-30 01:17:06 2019-May-30 01:17
1990-Dec-08 03:49 < 00:01 Earth 0.367612564918249 0.367611764306828 0.367613365530026 14.0408027674697 14.0402865436326 2448233.659141545 0.0650702794038504 67.4685126176928 37.6161779350635 -76.1844585296213 1419881.24677899 T 13 CATAB v2.0e-lin.ifort 2019-May-30 01:17:06 2019-May-30 01:17
1994-Dec-10 03:02 < 00:01 Earth 0.46814108753478 0.468140122461742 0.468142052607844 14.7111275674622 14.7107406704762 2449696.626122427 0.0863339908194722 50.5853060002444 43.3409913400141 -36.6916415516702 1471311.64246251 T 13 CATAB v2.0e-lin.ifort 2019-May-30 01:17:06 2019-May-30 01:17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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