Difference between revisions of "Template:Large near earth asteroid flybys 2LD"
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imported>Renerpho (Size estimate for 2015 TB145, from Müller, 2017 (https://www.aanda.org/articles/aa/pdf/2017/02/aa29584-16.pdf), uncertainty taken from LCDB (http://alcdef.org)) |
imported>Rfassbind (wrap table into collapsible Template:hidden begin) |
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| + | | title = History of close approaches of large near-Earth objects since 1908 <sup>(A)</sup> | ||
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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 2 [[Lunar distance (astronomy)|lunar distances]] (LD) of objects with [[Absolute magnitude (H)|H]] brighter than 20.<br /><sup>(B)</sup> [[Curve fitting|Nominal]] geocentric distance from the center of Earth to the center of the object (Earth has a radius of approximately 6,400 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 AU≈390 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 2 [[Lunar distance (astronomy)|lunar distances]] (LD) of objects with [[Absolute magnitude (H)|H]] brighter than 20.<br /><sup>(B)</sup> [[Curve fitting|Nominal]] geocentric distance from the center of Earth to the center of the object (Earth has a radius of approximately 6,400 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 AU≈390 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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Revision as of 12:55, 30 October 2018
History of close approaches of large near-Earth objects since 1908 (A)
| PHA | Date | Approach distance in lunar distances | Abs. mag (H) |
Diameter (C) (m) |
Ref (D) | ||
|---|---|---|---|---|---|---|---|
| Nominal(B) | Minimum | Maximum | |||||
| Template:Mpl | 1914-12-31 | 0.606 | 0.604 | 0.608 | 19.4 | 279–900 | data |
| Template:Mpl | 1918-09-17 | 0.911 | 0.909 | 0.913 | 17.9 | 556–1795 | data |
| Template:Mpl | 1925-08-30 | 0.903 | 0.901 | 0.905 | 18.5 | 443–477 | data |
| 69230 Hermes | 1937-10-30 | 1.926 | 1.926 | 1.927 | 17.5 | 700-900[1] | data |
| 69230 Hermes | 1942-04-26 | 1.651 | 1.651 | 1.651 | 17.5 | 700-900[1] | data |
| Template:Mpl | 1975-01-31 | 1.762 | 1.761 | 1.762 | 18.1 | 507–1637 | data |
| Template:Mpl | 2002-08-18 | 1.371 | 1.371 | 1.371 | 19.0 | 335–1082 | data |
| Template:Mpl | 2006-07-03 | 1.125 | 1.125 | 1.125 | 19.3 | 292–942 | data |
| Template:Mpl | 2015-10-31 | 1.266 | 1.266 | 1.266 | 20.0 | 620-690 | data |
| Template:Mpl | 2027-08-07 | 1.014 | 1.010 | 1.019 | 17.9 | 556–1793 | data |
| Template:Mpl | 2028-06-26 | 0.647 | 0.647 | 0.647 | 18.2 | 921–943 | data |
| 99942 Apophis | 2029-04-13 | 0.0981 | 0.0963 | 0.1000 | 19.7 | 310–340 | data |
| Template:Mpl | 2072-07-26 | 1.216 | 1.215 | 2.759 | 18.8 | 367–1186 | data |
| Template:Mpl | 2072-10-17 | 1.875 | 1.865 | 1.886 | 19.6 | 254–820 | data |
| (163132) 2002 CU11 | 2080-08-31 | 1.655 | 1.654 | 1.656 | 18.5 | 443–477 | data |
| (416801) 1998 MZ | 2116-11-26 | 1.068 | 1.068 | 1.069 | 19.2 | 305–986 | data |
| Template:Mpl | 2140-12-01 | 0.634 | 0.631 | 0.637 | 19.3 | 427–593 | data |
| Template:Mpl | 2172-02-08 | 1.783 | 1.775 | 1.792 | 18.7 | 385–1242 | data |
| (290772) 2005 VC | 2198-05-05 | 1.951 | 1.791 | 2.134 | 17.6 | 638–2061 | data |
| (A) This list includes near-Earth approaches of less than 2 lunar distances (LD) of objects with H brighter than 20. (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 | |||||||
- ↑ 1.0 1.1 Marchis, F.; et al. "Multiple asteroid systems: Dimensions and thermal properties from Spitzer Space Telescope and ground-based observations". Icarus. 221 (2): 1130–1161. Retrieved 24 August 2018.