{"id":772220,"date":"2023-11-11T23:49:54","date_gmt":"2023-11-12T03:49:54","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=772220"},"modified":"2023-11-11T23:49:54","modified_gmt":"2023-11-12T03:49:54","slug":"asteroid-2023-ur10-flew-past-earth-at-just-0-036-ld-9th-closest-on-record-2","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=772220","title":{"rendered":"Asteroid 2023 UR10 flew past Earth at just 0.036 LD \u2014 9th closest on record"},"content":{"rendered":"


\n<\/p>\n

\n

A newly-discovered asteroid designated 2023 UR10 flew past Earth at just 0.036 LD \/ 0.00009 AU (13 951 km \/ 8 669 miles) from the center of our planet at 04:27 UTC on October 20, 2023. This is about 7 580 km (4 709 miles) from the surface.<\/strong><\/p>\n

2023 UR10 was first observed at Pan-STARRS 1, Haleakala, Hawaii on October 21 \u2014 one day after it made its close approach to our planet.<\/p>\n

Its estimated diameter is between 2.7 and 6 m (8.8 \u2013 19.7 feet)<\/p>\n

Since the beginning of the year, our space observatories have identified a total of 86 asteroids whose orbits come within 1 lunar distance from Earth\u2019s center.<\/p>\n

2023 UR10 is the 9th <\/sup>closest known asteroid flyby on record (since 1900) and the third asteroid discovered in 2023 to enter the list of the top 10 closest flybys on record.<\/p>\n

The closest known flyby was that of the asteroid 2020 VT4, which came within 0.00005 AU from the center of Earth on November 13, 2020. The asteroid had a relative velocity of 13.43 km\/s and a diameter estimated between 5 and 11 m (16.4 \u2013 36 feet). Another example is 2021 UA1, which ranks as the 2nd<\/sup> closest flyby, coming within 0.00006 AU on October 25, 2021, with a relative velocity of 15.84 km\/s and a diameter between 1.1 and 2.5 m (3.6 \u2013 8.2 feet).<\/p>\n

Alongside 2023 UR10, which is the 9th<\/sup> closest flyby, there are two other asteroids making the list in the same year \u2014 2023 RS and 2023 BU.<\/p>\n

2023 RS flew past us on September 7, 2023, at 14:26 UTC, with a nominal distance of 0.00007 AU and a relative velocity of 13.59 km\/s. Its estimated diameter ranges from 0.91 to 2 m (2.9 \u2013 6.6 feet), making it one of the smaller asteroids on the list. It ranks 4th<\/sup> in terms of closeness to Earth.<\/p>\n

2023 BU flew past us on January 27 at 00:29 UTC. It had a nominal distance of ~0.00007 AU and a much slower relative velocity of 9.27 km\/s. Its estimated diameter ranges between 3.1 and 6.9 m (10.2 \u2013 22.6 feet). It ranks 5th<\/sup> on the list of closest flybys.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Rank<\/th>\nObject<\/th>\nClose-Approach (CA) Date<\/th>\nCA Distance Nominal (au)<\/th>\nV relative (km\/s)<\/th>\nDiameter<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n2020 VT4<\/td>\nNovember 13, 2020 at 17:21 UTC<\/td>\n0.00005<\/td>\n13.43<\/td>\n5.0 m \u2013 11 m<\/td>\n<\/tr>\n
2<\/td>\n2021 UA1<\/td>\nOctober 25, 2021 at 03:07 UTC<\/td>\n0.00006<\/td>\n15.84<\/td>\n1.1 m \u2013 2.5 m<\/td>\n<\/tr>\n
3<\/td>\n2020 QG<\/td>\nAugust 16, 2020 at 04:09 UTC<\/td>\n0.00006<\/td>\n12.33<\/td>\n2.8 m \u2013 6.2 m<\/td>\n<\/tr>\n
4<\/td>\n2023 RS<\/td>\nSeptember 07, 2023 at 14:26 UTC<\/td>\n0.00007<\/td>\n13.59<\/td>\n0.91 m \u2013 2.0 m<\/td>\n<\/tr>\n
5<\/td>\n2023 BU<\/td>\nJanuary 27, 2023 at 00:29 UTC<\/td>\n0.00007<\/td>\n9.27<\/td>\n3.1 m \u2013 6.9 m<\/td>\n<\/tr>\n
6<\/td>\n2019 UN13<\/td>\nOctober 31, 2019 at 14:45 UTC<\/td>\n0.00008<\/td>\n12.85<\/td>\n1.1 m \u2013 2.4 m<\/td>\n<\/tr>\n
7<\/td>\n2011 CQ1<\/td>\nFebruary 04, 2011 at 19:39 UTC<\/td>\n0.00008<\/td>\n9.69<\/td>\n1.0 m \u2013 2.3 m<\/td>\n<\/tr>\n
8<\/td>\n2008 TS26<\/td>\nOctober 09, 2008 at 03:30 UTC<\/td>\n0.00008<\/td>\n15.76<\/td>\n0.61 m \u2013 1.4 m<\/td>\n<\/tr>\n
9<\/td>\n2023 UR10<\/td>\nOctober 20, 2023 at 04:27 UTC<\/td>\n0.00009<\/td>\n12.22<\/td>\n2.7 m \u2013 6.0 m<\/td>\n<\/tr>\n
10<\/td>\n2021 SP<\/td>\nSeptember 17, 2021 at 11:50 UTC<\/td>\n0.00009<\/td>\n14.37<\/td>\n3.7 m \u2013 8.3 m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>
Top 10 closest asteroid flybys on record as of October 31, 2023<\/figcaption><\/figure>\n
\"asteroid<\/figure>\n
\"asteroid\"asteroid<\/figure>\n

References:<\/p>\n

Asteroid 2023 UR10 at Minor Planet Center; at CNEOS<\/p>\n

Featured image credit: CNEOS<\/em><\/p>\n

<\/p>\n

If you value what we do here, create your ad-free account and support our journalism.<\/p>\n

<\/center>
\n<\/p>\n

\n
\n
\n
\n
\n
\n
\n
\n
\n
\n
\n
\n

Asteroid 2023 VB2 flew past Earth at 0.085 LD<\/h3>\n

Tuesday, November 7, 2023<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

\n
\n
\n

Asteroid 2023 VA flew past Earth at just 0.07 LD<\/h3>\n

Monday, November 6, 2023<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

\n
\n
\n

Asteroid 2023 UH9 flew past Earth at 0.2 LD<\/h3>\n

Thursday, October 26, 2023<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

\n
\n
\n

Asteroid 2023 UB flew past Earth at 0.15 LD<\/h3>\n

Tuesday, October 17, 2023<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

\n
\n
\n

Asteroid 2023 TO17 flew past Earth at 0.14 LD<\/h3>\n

Tuesday, October 17, 2023<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

\n
\n
\n

Asteroid 2023 TV3 to fly past Earth at 0.2 LD<\/h3>\n

Monday, October 9, 2023<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n

\n
\n
\n

Asteroid 2023 SH7 flew past Earth at 0.1 LD<\/h3>\n

Friday, October 6, 2023<\/span><\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/div>\n


\n
Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

A newly-discovered asteroid designated 2023 UR10 flew past Earth at just 0.036 LD \/ 0.00009 AU (13 951 km \/ 8 669 miles) from the center of our planet at… <\/p>\n","protected":false},"author":1,"featured_media":772221,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-772220","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-genaero"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/772220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=772220"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/772220\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/772221"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=772220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=772220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=772220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}