Recent Near Earth Asteroids
Sizes for Everyone! - Only since April 1st this year! • It’s crowded out there & you ain’t seen nothin’ yet!
[Subtract .02 for distance to Earth’s surface.] ♦ • = At Least 600m and/or Less Than 2 LDs — (Additional Data Compiled From: http://www.spaceweather.com, http://ssd.jpl.nasa.gov & http://neo.jpl.nasa.gov)
Updated: 3/16/16 ♦ [H = Potentially Hazardous Asteroid (PHA)] ♦ [♠ = MouseOver Information or Click.] ♦ [Albedo = .25 ⇒ .05] ♦ [Meters × 3.28(0839895) = Feet.] ♦ Counts: Apr 37 + May 36 + Jun 23 = 96

April 2016 Asteroid Designation Type Flyby Date Univ. Time × Lunar Distance Diameter In Meters 2016 ED157 Amor 1 − 13:07  47.66  34-  82  2008 FX6 Aten 3 −  7:51  22.74  27-  59  2012 TS (420738) Aten − 23:22  48.08  183- 411  2002 AJ29• (141354) Amor 6 −   :41  55.16  •921-2100  2016 EV27 Apollo − 18:12  14.62  72- 162  2016 EZ26 Apollo 7 −  1:52  40.02  81- 182  2002 EB3• (208617) Apollo 8 − 18:27  55.58  •770-1714  2016 EF85 Amor − 22:36  32.65  25-  62  2016 DP•h Apollo − 23:55  55.03  •301- 674  2008 GU20 Amor 9 − 11:29  57.14  64- 142  1998 HD14 h (437841) Aten − 15:26  60.32  180- 392  2008 GG2 (330659) Amor 10 −  4:03  56.34  77- 171  2016 ED158 Apollo − 12:52  26.89  74- 180  2016 EH157 h Apollo − 18:02  25.92  181- 405  2009 KJ• (406952) Apollo − 18:46  37.68  •1010-2300  2004 FG11 h (363599) Apollo 11 − 16:39  19.29  170- 380  2009 BC11 Apollo − 19:04  31.51  97- 220  2012 SW20•h Apollo − 21:52  44.32  •310- 682  2005 GR33 Aten 13 −  3:27  7.66  110- 240  2016 EK27 Apollo − 20:19  21.03  98- 220  2008 HU4 Apollo 16 − 10:00  4.59  6-  14  2016 AO165• Apollo − 20:22  48.04  •271- 610  2012 EA Apollo − 22:09  53.08  11-  25  2014 HJ4 Amor 19 − 21:54  53.91  56- 124  2014 QS295 Apollo 21 −  7:15  53.93  110- 250  2014 UR Aten 23 −  3:30  30.77  13-  28  ♦ 2nd Pass (Oct 18) −  3:49  11.96  2016 BU13• Apollo − 10:38  30.51  •280- 620  2006 HF6 Apollo − 10:43  35.55  35-  78  2003 KO2 h Aten 25 −   :21  17.89  242- 542  2013 UE3 Apollo −  6:03  65.34  76- 171  ♦ 2nd Pass (Jul 21) − 14:07  73.70  2001 BB16 Aten 28 −  3:44  71.78  63- 142  2013 KJ6• Aten −  8:57  36.87  •291- 651  ♦ 2nd Pass (Sep 17) −  5:38  113.97  2001 VG5• (194386) Apollo − 22:29  52.41  •1108-2477  2002 CX58 h Apollo 29 −  9:01  16.54  101- 225  2015 VB1 Aten − 22:01  61.62  50- 113  ♦ 2nd Pass (Nov 17) −  4:09  62.44  2008 PR9 Aten 30 −  6:36  8.74  88- 196  2014 WU200 Apollo −  8:28  52.05  4-   8  Data also compiled from the Minor Planet Center’s G+ posting updates. Outer Solar System Asteroids

May 2016 Asteroid Designation Type Flyby Date Univ. Time × Lunar Distance Diameter In Meters 2014 US115 Apollo 1 −  1:55  7.42  31-  71  2013 WT45 h Apollo 2 − 14:22  58.19  242- 542  2006 UK h (444584) Apollo 3 − 15:44  17.81  253- 567  2015 VF150 Apollo − 19:14  42.85  21-  47  2008 TZ3 h (388945) Apollo 5 − 10:39  13.13  221- 494  2014 US56 Apollo − 20:31  53.45  15-  34  2014 JG55• Apollo 8 −   :32  •.82  3-   8  2015 VU64 Aten −  5:19  60.03  2-   4  2010 KP10 Apollo − 16:20  29.45  58- 130  2005 XB1 Apollo 9 −  3:57  77.15  105- 236  1999 VR6 h Apollo 10 − 20:10  72.28  183- 411  2015 YK Apollo 12 − 10:59  42.06  17-  39  2014 BM62 Apollo − 11:56  45.98  23-  51  ♦ 2nd Pass (Jul 18) −  1:10  19.19  2008 GC110 Apollo 13 −  4:47  68.63  96- 215  ♦ 2nd Pass (Sep 10) −  7:09  80.69  2007 VT6 h Apollo −  5:47  48.29  231- 517  2015 HZ176 Aten − 14:01  63.50  48- 108  2007 CN26 h (371660) Apollo 14 − 17:06  68.51  160- 358  Selqet •♠ (136818) Aten 15 − 13:44  44.05  •402- 899  2014 MS67 Apollo 16 − 11:13  46.77  152- 342  2016 BX14 Apollo − 18:17  22.56  196- 439  2006 XX2 Aten 18 −  7:50  62.93  25-  56  2015 VO142 Apollo − 11:58  54.86  4-   9  2000 AF205 h Apollo − 12:58  71.12  121- 271  2005 UU3 Apollo − 20:19  65.88  105- 236  2014 GC49 Aten 19 −  7:23  62.78  5-  11  2012 VU76 Apollo 20 −  2:40  42.93  19-  43  2016 CF194 Amor 24 − 13:35  15.62  37-  83  2009 DL46 h Apollo − 17:59  6.16  127- 284  2004 JX20• Aten 26 −  1:39  56.93  •350- 783  ♦ 2nd Pass (Nov 16) −  8:27  123.69  2002 LT24 h Aten −  3:21  39.36  101- 225  ♦ 2nd Pass (Sep 29) −  5:03  186.38  2011 GP44 Aten −  6:05  48.13  35-  78  2015 KT120 Aten − 19:19  57.12  26-  59  2014 WE6 Aten 30 −  3:57  54.38  2-   5  2010 LL68 Apollo 31 − 15:01  67.28  69- 156  2015 YU1 Apollo − 19:50  28.06  30-  68  2009 HD82 Apollo − 22:18  60.68  127- 284  Data also compiled from the Minor Planet Center’s G+ posting updates. Jupiter’s Trojan(green) & Hilda(red) Asteroids   Check Out This Video by The Minor Planet Center :

June 2016 Asteroid Designation Type Flyby Date Univ. Time × Lunar Distance Diameter In Meters 2004 KH17 h Aten 2 −   :18  44.22  110- 247  2006 XE2 Apollo 5 −  8:46  37.02  105- 236  2006 JF42•h Aten 6 − 10:52  35.79  •402- 899  2009 KR4 Aten 9 −  7:15  24.65  26-  59  1997 XF11•h (35396) Apollo 10 − 16:12  70.04  •1108-2477  2009 MW Aten 12 −  4:09  44.77  192- 430  2002 LY1 h Aten −  8:08  19.85  101- 225  2015 XZ378 Apollo 13 −  4:38  9.67  8-  19  2015 KS120 Aten − 23:18  55.77  22-  49  ♦ 2nd Pass (Nov 2) −  3:45  46.95  2009 ME9 Aten 14 − 11:31  64.06  146- 326  2007 MK6•♠ Apollo 15 −  7:39  39.63  •278- 622  2003 GY h (382758) Apollo − 17:34  30.85  242- 542  2002 LT38 h Aten 16 −  3:17  27.12  231- 517  2013 BO27 Apollo − 18:04  19.82  42-  94  2015 KF Aten 17 − 20:00  51.78  25-  57  2009 CV Apollo 20 −  1:31  12.40  36-  82  2013 ND15 Aten 21 − 17:32  24.59  40-  89  2016 CV193 Apollo 23 − 23:49  50.15  75- 169  2010 NY65 h (441987) Aten 24 − 10:30  10.71  133- 297  2012 BD14 Apollo 26 −  8:45  76.13  13-  29  ♦ 2nd Pass (Sep 24) − 15:13  79.19  2011 FC29 Apollo 27 −  3:00  44.84  175- 392  2007 WU3 Apollo 28 − 14:32  44.63  46- 103  2014 KM22 Amor 30 − 21:31  45.60  13-  29  Data also compiled from the Minor Planet Center’s G+ posting updates. Mouse over this if you think we won’t get hit, eh? [Notice the Earth’s orbit is in the densest part of the asteroids’ orbits!] [Note: New 2016 NEO orbital tracks are not included in above image.] NEOs (Near Earth Objects), or NEAs (Near Earth Asteroids), are also referred to as AAAs. - There are more than 200,000: 32%  Amor-asteroid orbits approach but do not cross Earth’s. Amors orbit farther from the Sun than Earth and many remain entirely between Earth & Mars. 62%  Apollo asteroids’ wider orbits cross Earth’s and spend more time outside Earth’s orbit. 6%  Aten asteroids’ orbits cross Earth’s but spend more time inside Earth’s orbit and are more difficult to detect. <1%  Atira asteroids’ orbits remain entirely inside Earth’s orbit (aka: Interior Earth Objects or IEOs). <1%  Comets have highly elliptical,+ hyperbolic orbits and can also pass near or impact Earth. - Some speed in+ from beyond Pluto with most not in the ecliptic.+ PHAs* NASA+: “Potentially Hazardous Asteroids (PHAs, 1648 known) are currently defined based on parameters that measure the asteroid’s potential to make threatening, close approaches to the Earth. Specifically, all asteroids with an Earth Minimum Orbit Intersection Distance (MOID) of .05 AU [Astronomical Unit: mean distance from Earth to Sun] or less and an absolute magnitude (H) of 22 or less are con­sid­ered PHAs. In other words, asteroids that can’t get any closer to the Earth (i.e., MOID) than .05 AU (roughly 7,480,000km or 4,650,000miles) or are smaller than about 150m (500ft) in diameter (i.e., H=22 with assumed albedo+ of 13%) are not considered PHAs.  This “potential” [for] close Earth approaches does not mean a PHA will impact the Earth. It only means there is a possibility for such a threat. By monitoring these PHAs and updating their orbits as new observations become available, we can better pre­dict the close-approach statistics and thus their Earth-impact threat.” – After Chelyabinsk,+ I’m not so sure about that at all !!!  Just so you understand, let me explain why NASA uses the term *PHA (Potentially Hazardous Asteroid). - You see, if an asteroid comes close enough, Earth’s gravity will affect its trajectory for the next time it passes, possibly caus­ing an im­pact. - Personally, I don’t believe for one nano­sec­ond that if NASA finds one which has an impact trajectory that they’ll tell us about it, unless it’s small enough not to be a prob­lem other­wise. - So, keep checking in here for any “trends,” eh? - •I would!• - [Note: Above 2nd Qtr. LDs are minimums.] [Author’s Note: Data compiled above is from four sources, so I intentionally err on the side of caution. For example, if one source has an earlier time of closest approach, that one is used. Similarly, if one source has a larger size or size range, that one is used above as well. The same goes for distance at passage, the lesser datum is used, especially because in one case or another the Lunar Distance standard used varies slightly. I figured diameters from absolute magnitude (H), with reflectance/albedo from .25 to .05 which, again, varies from one source to another. - (I also figured LDs.)] International/uS ©Copyright 2016 by RK (aka: MayarOwl)