The Latest Worldwide Meteor/Meteorite News: 2015 QT3

at 1:33 pm

NEO Asteroids Close Approaches August 2015
This Month will be very promising for having new meteorites.

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August 2015 NEO Asteroids Close Approaches
c2015 Dirk Ross- Tokyo, Japan

August ALERT- Increased Meteor Activity!
Expect some spectacular bolides, fireballs, and meteors this month and especially large ones 3-5 days before and following the passing of 11 small mountain-sized NEO asteroids, diameters ranging from 500m- 2.3km, that will safely pass this month.

Please report your meteor sightings to this website for posting- Remember IF you are looking for a report and no one reports then everyone lacks information; thank you.
http://lunarmeteoritehunters.blogspot.jp/2000/11/meteor-fireball-report-form.html

There are currently ~~1 3 4 6~~ 7 known NEO Asteroids discovered that will pass within approximately 10LD or less (LD stands for "Lunar Distance"), in the month of August 2015.

I expect that 10 or more 10LD NEOs will be discovered before month end.
Be ready for some bolide, fireball, and meteor activity!
Cameras Ready!
If you get video or photo of a meteor please email to - LunarMeteoriteHunter@gmail.com
- LunarMeteoriteHunter, Tokyo

2015 PK, 2015 PL9,2015 PK9,2015 PT227,
2015 QK, 2015 QH3, 2015 QT3,

reported 22AUG2015

(2015 QT3)

2015-Aug-28

0.0107

4.2

45 m - 100 m

23.9

26.29

reported 20AUG2015

(2015 QK)

2015-Aug-19

0.0120

4.7

15 m - 34 m

26.2

8.35

(2015 QH3)

2015-Aug-21

0.0113

4.4

11 m - 25 m

26.9

7.10

reported 14AUG2015

(2015 PT227)

2015-Aug-29

0.0248

9.7

45 m - 100 m

23.8

9.37

reported and added 11AUG2015 - late discovery

(2015 PL9)

2015-Aug-08

0.0032

1.2

10.0 m - 22 m

27.1

11.23

(2015 PK9)

2015-Aug-07

0.0148

5.8

49 m - 110 m

23.7

8.69

reported and added 08AUG2015 - late discovery

(2015 PK)

2015-Aug-06

0.0005

0.2

6.2 m - 14 m

28.2

16.33

UPCOMING CLOSE APPROACHES TO EARTH

1 AU = ~150 million kilometers
1 LD = Lunar Distance = ~384,000 kilometers

Object Name	Close Approach Date	CA Distance* (AU)	CA Distance* (LD)	Estimated Diameter**	H (mag)	Relative Velocity (km/s)
(2015 LG2)	2015-Aug-02	0.0753	29.3	200 m - 450 m	20.6	11.86
(2015 KK122)	2015-Aug-02	0.1660	64.6	80 m - 180 m	22.6	5.43
(2015 NV13)	2015-Aug-03	0.1023	39.8	46 m - 100 m	23.8	8.50
(2015 NZ13)	2015-Aug-03	0.0883	34.4	200 m - 460 m	20.6	24.52
(2012 KA4)	2015-Aug-04	0.1479	57.6	150 m - 340 m	21.2	29.03
(2015 CV13)	2015-Aug-05	0.1150	44.8	230 m - 520 m	20.3	11.94
(2015 LE21)	2015-Aug-05	0.0812	31.6	31 m - 68 m	24.7	3.49
242643 (2005 NZ6)	2015-Aug-06	0.1967	76.5	880 m - 2.0 km	17.4	34.64
(2015 MX53)	2015-Aug-06	0.0435	16.9	56 m - 120 m	23.4	7.30
(2003 PN5)	2015-Aug-07	0.1374	53.5	61 m - 140 m	23.2	9.72
(2015 MM116)	2015-Aug-08	0.1766	68.7	85 m - 190 m	22.5	4.78
434154 (2002 SL)	2015-Aug-08	0.1806	70.3	330 m - 750 m	19.5	9.86
438105 (2005 GO22)	2015-Aug-09	0.1311	51.0	510 m - 1.1 km	18.6	31.74
(2009 DB1)	2015-Aug-10	0.0466	18.1	70 m - 160 m	22.9	12.44
(2014 BT8)	2015-Aug-11	0.1482	57.7	27 m - 59 m	25.0	6.73
(2011 QG21)	2015-Aug-11	0.0521	20.3	110 m - 250 m	21.9	16.50
(2008 WK96)	2015-Aug-11	0.1457	56.7	64 m - 140 m	23.1	12.21
(2012 NP)	2015-Aug-12	0.1013	39.4	150 m - 330 m	21.3	6.81
(2004 AS1)	2015-Aug-12	0.0781	30.4	210 m - 470 m	20.5	11.34
(2007 RO17)	2015-Aug-12	0.1096	42.6	18 m - 41 m	25.8	8.68
(2014 WE6)	2015-Aug-13	0.1731	67.4	2.2 m - 4.9 m	30.4	5.17
(2015 EK7)	2015-Aug-13	0.1276	49.7	110 m - 240 m	22.0	11.44
(2014 SD224)	2015-Aug-13	0.1589	61.8	97 m - 220 m	22.2	6.34
232691 (2004 AR1)	2015-Aug-13	0.0748	29.1	290 m - 650 m	19.8	14.07
(2011 AK5)	2015-Aug-13	0.0709	27.6	140 m - 310 m	21.4	5.73
277475 (2005 WK4)	2015-Aug-16	0.1688	65.7	250 m - 570 m	20.1	13.30
348400 (2005 JF21)	2015-Aug-16	0.0517	20.1	1.0 km - 2.3 km	17.1	9.20
369057 (2008 DK5)	2015-Aug-16	0.1848	71.9	140 m - 310 m	21.4	23.72
(2015 KB19)	2015-Aug-17	0.1214	47.2	120 m - 270 m	21.7	8.70
(2012 TM139)	2015-Aug-18	0.1851	72.0	330 m - 750 m	19.5	3.96
(2015 CU13)	2015-Aug-18	0.1475	57.4	51 m - 110 m	23.6	23.56
350713 (2001 XP88)	2015-Aug-19	0.1441	56.1	200 m - 450 m	20.6	2.96
(2015 OF26)	2015-Aug-19	0.0987	38.4	130 m - 290 m	21.5	16.61
(2007 WZ4)	2015-Aug-21	0.1411	54.9	37 m - 82 m	24.3	8.91
206378 (2003 RB)	2015-Aug-22	0.0531	20.7	480 m - 1.1 km	18.7	8.47
385252 (2001 EB18)	2015-Aug-23	0.1681	65.4	370 m - 820 m	19.3	25.36
(2010 RJ43)	2015-Aug-23	0.1309	51.0	61 m - 140 m	23.2	11.59
(2015 OV)	2015-Aug-24	0.0752	29.3	50 m - 110 m	23.6	6.91
(2005 QQ87)	2015-Aug-25	0.0845	32.9	77 m - 170 m	22.7	18.99
(2013 RZ5)	2015-Aug-26	0.1574	61.3	5.6 m - 12 m	28.4	21.73
250458 (2004 BO41)	2015-Aug-31	0.1473	57.3	730 m - 1.6 km	17.8	21.39

Source Table- NASA/JPL
-- for the most current version check- http://neo.jpl.nasa.gov/ca/
Self search parameters - http://neo.jpl.nasa.gov/cgi-bin/neo_ca

Source Wikipedia-
--- FYI

**Stony asteroids that impact sedimentary rock and create a crater^[6]**
Impactor diameter	Kinetic energy at atmospheric entry	Impact energy	Crater diameter	Average frequency
100 m (330 ft)	47 Mt	38 Mt	1.2 km (0.75 mi)	5200 years
130 m (430 ft)	103 Mt	64.8 Mt	2 km (1.2 mi)	11000 years
150 m (490 ft)	159 Mt	71.5 Mt	2.4 km (1.5 mi)	16000 years
200 m (660 ft)	376 Mt	261 Mt	3 km (1.9 mi)	36000 years
250 m (820 ft)	734 Mt	598 Mt	3.8 km (2.4 mi)	59000 years
300 m (980 ft)	1270 Mt	1110 Mt	4.6 km (2.9 mi)	73000 years
400 m (1,300 ft)	3010 Mt	2800 Mt	6 km (3.7 mi)	100000 years
700 m (2,300 ft)	16100 Mt	15700 Mt	10 km (6.2 mi)	190000 years
1,000 m (3,300 ft)	47000 Mt	46300 Mt	13.6 km (8.5 mi)	440000 years

"6 Robert Marcus, H. Jay Melosh, and Gareth Collins (2010). "Earth Impact Effects Program". Imperial College London / Purdue University. Retrieved 2013-02-04.(solution using 2600kg/m^3, 17km/s, 45 degrees)

Stony asteroid impacts that generate an airburst^[6]
Impactor diameter	Kinetic energy at atmospheric entry	Airburst energy	Airburst altitude	Average frequency
4 m (13 ft)	3 kt	0.75 kt	42.5 km (139,000 ft)	1.3 years
7 m (23 ft)	16 kt	5 kt	36.3 km (119,000 ft)	4.6 years
10 m (33 ft)	47 kt	19 kt	31.9 km (105,000 ft)	10.4 years
15 m (49 ft)	159 kt	82 kt	26.4 km (87,000 ft)	27 years
20 m (66 ft)	376 kt	230 kt	22.4 km (73,000 ft)	60 years
30 m (98 ft)	1.3 Mt	930 kt	16.5 km (54,000 ft)	185 years
50 m (160 ft)	5.9 Mt	5.2 Mt	8.7 km (29,000 ft)	764 years
70 m (230 ft)	16 Mt	15.2 Mt	3.6 km (12,000 ft)	1900 years
85 m (279 ft)	29 Mt	28 Mt	0.58 km (1,900 ft)	3300 years

"6 Robert Marcus, H. Jay Melosh, and Gareth Collins (2010). "Earth Impact Effects Program". Imperial College London / Purdue University. Retrieved 2013-02-04.(solution using 2600kg/m^3, 17km/s, 45 degrees)

reposted / updated reported 20AUG2015
reposted and added 12AUG2015 - late discoveries
reeposted and updated 08AUG2015
re-post 01AUG2015
original post 22JUL2015

2015 The SECOND Year of "CERTAIN Uncertainty" ™ / Meteors, Asteroids, Comets, and MORE!!

21 August 2015

NEO Asteroids Close Approaches August 2015