Difference between revisions of "Template:Large near earth asteroid flybys 10LD"

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imported>John of Reading
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imported>Rfassbind
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! rowspan=2 width=150 | [[Potentially hazardous asteroid|PHA]]
 
! rowspan=2 width=150 | [[Potentially hazardous asteroid|PHA]]
 
! rowspan=2 width=100 | Date
 
! rowspan=2 width=100 | Date
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! colspan=8 style="text-align: left; padding: 12px 8px; font-weight: normal;"| <sup>(A)</sup> This list includes near-Earth approaches of less than 10 [[Lunar distance (astronomy)|lunar distances]] (LD) of objects with [[Absolute magnitude (H)|H]] brighter than 16.<br /><sup>(B)</sup> [[Curve fitting|Nominal]] geocentric distance from the center of Earth to the center of the object (Earth has a [[Earth radius|radius]] of approximately 6,400&nbsp;km).<br /><sup>(C)</sup> Diameter: estimated, theoretical mean-diameter based on ''H'' and [[Geometric albedo|albedo]] range between X and Y.<br /><sup>(D)</sup> Reference: data source from the [[JPL SBDB]], with [[Astronomical unit|AU]] converted into LD (1&nbsp;AU≈390&nbsp;LD)<br /><sup>(E)</sup> Color codes: {{Legend2|#e2e2e2|unobserved at close approach|border=1px #999 solid}} {{Legend2|#fff|observed during close approach|border=1px silver solid}} {{Legend2|#FCEED4|upcoming approaches|border=1px silver solid}}
 
! colspan=8 style="text-align: left; padding: 12px 8px; font-weight: normal;"| <sup>(A)</sup> This list includes near-Earth approaches of less than 10 [[Lunar distance (astronomy)|lunar distances]] (LD) of objects with [[Absolute magnitude (H)|H]] brighter than 16.<br /><sup>(B)</sup> [[Curve fitting|Nominal]] geocentric distance from the center of Earth to the center of the object (Earth has a [[Earth radius|radius]] of approximately 6,400&nbsp;km).<br /><sup>(C)</sup> Diameter: estimated, theoretical mean-diameter based on ''H'' and [[Geometric albedo|albedo]] range between X and Y.<br /><sup>(D)</sup> Reference: data source from the [[JPL SBDB]], with [[Astronomical unit|AU]] converted into LD (1&nbsp;AU≈390&nbsp;LD)<br /><sup>(E)</sup> Color codes: {{Legend2|#e2e2e2|unobserved at close approach|border=1px #999 solid}} {{Legend2|#fff|observed during close approach|border=1px silver solid}} {{Legend2|#FCEED4|upcoming approaches|border=1px silver solid}}
 
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Latest revision as of 12:53, 30 October 2018

Chronology of close approaches of large near-Earth objects since 1981 (A)
PHA Date Approach distance in lunar distances Abs. mag
(H)
Diameter (C)
(m)
Ref (D)
Nominal (B) Minimum Maximum
Template:Mpl 1981-05-18 2.761 2.760 2.761 16.0 1333–4306 data
Template:Mpl 1989-08-01 7.034 6.843 7.224 16.0 1333–4306 data
4179 Toutatis 1992-12-08 9.399 9.399 9.399 15.30 2440–2450 data
4179 Toutatis 2004-09-29 4.031 4.031 4.031 15.30 2440–2450 data
Template:Mpl 2038-11-16 7.719 7.719 7.719 15.4 1746–4394 data
(4953) 1990 MU 2058-06-05 8.986 8.984 8.988 14.1 3199–10329 data
4179 Toutatis 2069-11-05 7.725 7.724 7.725 15.30 2440–2450 data
Template:Mpl 2079-04-16 4.611 4.611 4.612 15.8 1462–4721 data
Template:Mpl 2089-06-25 6.936 6.935 6.938 15.7 1531–4944 data
3200 Phaethon 2093-12-14 7.714 7.709 7.718 14.6 4900–5300 data
Template:Mpl 2127-04-16 6.536 6.510 6.563 15.8 1462–4721 data
(A) This list includes near-Earth approaches of less than 10 lunar distances (LD) of objects with H brighter than 16.
(B) Nominal geocentric distance from the center of Earth to the center of the object (Earth has a radius of approximately 6,400 km).
(C) Diameter: estimated, theoretical mean-diameter based on H and albedo range between X and Y.
(D) Reference: data source from the JPL SBDB, with AU converted into LD (1 AU≈390 LD)
(E) Color codes:   unobserved at close approach   observed during close approach   upcoming approaches