The Latest Worldwide Meteor/Meteorite News: asteroids September 2015

at 8:33 am

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

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September 2015 NEO Asteroids Close Approaches

c2015 Dirk Ross- Tokyo, Japan

September 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 5 or 6 small mountain-sized NEO asteroids and 1 comet, diameters ranging from 500m- 2.0km, 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 15~~ 18 known NEO Asteroids discovered that will pass within approximately 10LD or less (LD stands for "Lunar Distance"), in the month of September 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

Object

Close-Approach
(CA) Date

(TDB)
YYYY-mmm-DD

CA Distance
Nominal
(LD/AU)

CA Distance
Minimum
(LD/AU)

(2015 RQ36)	2015-Sep-01	6.5/0.0167	6.5/0.0167
(2015 RW2)	2015-Sep-04	5.1/0.0132	5.1/0.0131
(2015 RT82)	2015-Sep-04	6.7/0.0173	6.7/0.0172
(2015 RG2)	2015-Sep-07	6.4/0.0164	6.4/0.0164
(2015 RO83)	2015-Sep-09	5.3/0.0137	5.3/0.0136
(2015 ST)	2015-Sep-09	9.9/0.0254	9.7/0.0249
(2015 RU178)	2015-Sep-09	1.4/0.0036	1.4/0.0036
(2015 RW35)	2015-Sep-13	2.1/0.0055	2.1/0.0055
(2015 SG)	2015-Sep-13	5.0/0.0127	4.9/0.0127
(2014 KS76)	2015-Sep-14	8.7/0.0224	8.7/0.0224
(2015 SA)	2015-Sep-15	2.9/0.0075	2.9/0.0075
(2015 SH)	2015-Sep-15	2.5/0.0065	2.5/0.0065
(2015 SB)	2015-Sep-18	10.0/0.0256	9.9/0.0255
(2015 SM)	2015-Sep-18	4.0/0.0103	4.0/0.0103
(2015 SE)	2015-Sep-20	4.2/0.0107	4.2/0.0107
(2015 SK7)	2015-Sep-22	0.07/0.00018	0.07/0.00018
(2015 SV6)	2015-Sep-25	2.3/0.0059	2.3/0.0059
(2015 SZ2)	2015-Sep-30	1.3/0.0034	1.3/0.0034

http://neo.jpl.nasa.gov/

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 OV)	2015-Aug-24	0.0750	29.2	51 m - 110 m	23.6	6.89
(2005 QQ87)	2015-Aug-25	0.0845	32.9	77 m - 170 m	22.7	18.99
(2015 OS78)	2015-Aug-26	0.0840	32.7	160 m - 370 m	21.1	22.20
(2013 RZ5)	2015-Aug-26	0.1574	61.3	5.6 m - 12 m	28.4	21.73
(2015 PM307)	2015-Aug-27	0.1538	59.9	120 m - 270 m	21.7	34.37
(2015 QT3)	2015-Aug-28	0.0107	4.2	45 m - 100 m	23.9	26.29
(2015 PT227)	2015-Aug-29	0.0248	9.7	44 m - 98 m	23.9	9.36
(2015 QP3)	2015-Aug-30	0.0606	23.6	41 m - 92 m	24.1	9.30
(2015 QA)	2015-Aug-30	0.1095	42.6	85 m - 190 m	22.5	5.94
250458 (2004 BO41)	2015-Aug-31	0.1473	57.3	730 m - 1.6 km	17.8	21.39
(2015 PS227)	2015-Aug-31	0.0610	23.8	34 m - 76 m	24.5	8.66
(2004 TD10)	2015-Sep-01	0.0717	27.9	100 m - 230 m	22.1	11.83
(2006 MV1)	2015-Sep-01	0.1375	53.5	12 m - 26 m	26.8	7.98
281375 (2008 JV19)	2015-Sep-01	0.0447	17.4	190 m - 430 m	20.7	7.24
(2006 AW)	2015-Sep-02	0.1706	66.4	560 m - 1.2 km	18.4	13.63
(2012 JU)	2015-Sep-02	0.1602	62.3	5.8 m - 13 m	28.3	15.54
(2014 DA)	2015-Sep-03	0.1661	64.6	77 m - 170 m	22.7	17.47
(2015 QX8)	2015-Sep-04	0.0520	20.2	40 m - 89 m	24.1	10.70
7822 (1991 CS)	2015-Sep-04	0.1596	62.1	880 m - 2.0 km	17.4	18.95
320P/McNaught	2015-Sep-05	0.1835	71.4	n/a	0.0	16.28
(2015 PK57)	2015-Sep-05	0.0451	17.6	30 m - 66 m	24.8	11.27
(2015 NS13)	2015-Sep-06	0.1862	72.5	250 m - 570 m	20.1	12.15
(2009 BK2)	2015-Sep-06	0.0620	24.1	23 m - 52 m	25.3	5.63
(2012 SZ2)	2015-Sep-10	0.1521	59.2	23 m - 52 m	25.3	13.71
(2001 UZ16)	2015-Sep-11	0.1296	50.5	350 m - 780 m	19.4	8.95
(2012 UV136)	2015-Sep-11	0.1277	49.7	21 m - 47 m	25.5	3.46
(2008 GY21)	2015-Sep-12	0.1321	51.4	8.0 m - 18 m	27.6	15.00
(2015 FU117)	2015-Sep-12	0.1141	44.4	31 m - 68 m	24.7	6.45
(2014 KS76)	2015-Sep-14	0.0222	8.7	13 m - 30 m	26.5	7.59
260277 (2004 TR12)	2015-Sep-15	0.1512	58.8	610 m - 1.4 km	18.2	14.07
(2015 NK13)	2015-Sep-15	0.1001	38.9	200 m - 440 m	20.6	11.15
(2013 RO5)	2015-Sep-16	0.0655	25.5	29 m - 65 m	24.8	8.85
(2007 TD)	2015-Sep-21	0.0769	29.9	35 m - 78 m	24.4	14.16
(2001 SQ3)	2015-Sep-22	0.1585	61.7	130 m - 280 m	21.6	17.48
(2010 QA5)	2015-Sep-22	0.1172	45.6	84 m - 190 m	22.5	20.74
(2015 GA14)	2015-Sep-23	0.1997	77.7	25 m - 57 m	25.1	5.97
(2012 TT5)	2015-Sep-24	0.0553	21.5	120 m - 270 m	21.7	19.50
(2006 WV1)	2015-Sep-27	0.0853	33.2	18 m - 39 m	25.9	6.73
(2014 GA)	2015-Sep-28	0.1163	45.2	14 m - 31 m	26.4	7.38
(2012 SG32)	2015-Sep-29	0.1184	46.1	130 m - 280 m	21.6	11.35
(2015 KJ57)	2015-Sep-30	0.0664	25.8	130 m - 300 m	21.5	7.17
(2008 FX6)	2015-Sep-30	0.1836	71.5	27 m - 59 m	25.0	7.92

http://neo.jpl.nasa.gov/cgi-bin/neo_ca

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)

updated 24SEP2015
updated 23SEP2015
original post 25JUL2015 - EARLY

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

24 September 2015

NEO Asteroids Close Approaches September 2015