Category: Asteroids


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NASA Confirms 60 feet Asteroid is on Course for a Close Encounter with Earth

All Sky Fireball Network

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Dec. 13, 2015, the network reported 29 fireballs.
(15 Geminids, 10 sporadics, 2 December Monocerotids, 1 Quadrantid, 1 alpha Canis Majorid)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

Near Earth Asteroids

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On December 13, 2015 there were potentially hazardous asteroids.

Recent & Upcoming Earth-asteroid encounters:

Asteroid
Date(UT)
Miss Distance
Size
2015 XU169
Dec 10
9.5 LD
16 m
1998 WT24
Dec 11
10.9 LD
1.1 km
2015 XA169
Dec 12
7.4 LD
15 m
2015 XR169
Dec 13
1.3 LD
8 m
2015 XX128
Dec 14
2.4 LD
25 m
2015 XX169
Dec 14
8.4 LD
14 m
2015 XN55
Dec 15
2.5 LD
15 m
2015 XY261
Dec 15
0.8 LD
16 m
2015 XL261
Dec 17
9.7 LD
42 m
2015 XE1
Dec 19
13.2 LD
29 m
2015 XN261
Dec 23
2.6 LD
31 m
2011 YD29
Dec 24
9.7 LD
24 m
2003 SD220
Dec 24
28.4 LD
1.8 km
2008 CM
Dec 29
22.8 LD
1.5 km
2004 MQ1
Jan 2
55.4 LD
1.1 km
1999 JV6
Jan 6
12.6 LD
410 m
1685 Toro
Jan 22
60.9 LD
1.7 km
2001 XR1
Jan 23
74.4 LD
1.5 km
2015 VC2
Jan 28
5.8 LD
15 m

Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

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All Sky Fireball Network

by Dr. Tony Phillips.

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Nov. 17, 2015, the network reported 38 fireballs.
(23 sporadics, 9 Northern Taurids, 3 Leonids, 2 November I Draconids, 1 omicron Eridanid)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

 

Near Earth Asteroids

 

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On November 18, 2015 there were 1634 potentially hazardous asteroids.

Recent & Upcoming Earth-asteroid encounters:

Asteroid
Date(UT)
Miss Distance
Size
2015 VR64
Nov 12
3 LD
14 m
2015 VV105
Nov 13
9 LD
10 m
2015 VU65
Nov 14
5.2 LD
23 m
2015 VY105
Nov 15
0.09 LD
7 m
2015 VN105
Nov 16
5.5 LD
13 m
2015 VD105
Nov 16
7.2 LD
52 m
2015 VC106
Nov 18
7 LD
24 m
2005 UL5
Nov 20
5.9 LD
390 m
2015 VE66
Nov 21
7.5 LD
64 m
2015 VO142
Nov 24
1 LD
7 m
2015 VH2
Nov 24
12.9 LD
14 m
2003 EB50
Nov 29
48.8 LD
2.2 km
2007 BG29
Dec 1
54.1 LD
1.1 km
2015 VZ145
Dec 8
9.2 LD
81 m
1998 WT24
Dec 11
10.9 LD
1.1 km
2011 YD29
Dec 24
9.7 LD
24 m
2003 SD220
Dec 24
28.4 LD
1.8 km
2008 CM
Dec 29
22.8 LD
1.5 km
2004 MQ1
Jan 2
55.4 LD
1.1 km
1999 JV6
Jan 6
12.6 LD
410 m

Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

]Earth Watch Report Banner photo FSPEarthWatchReport900x228Blogger_zps53ef6af0.jpg

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Image Source  NASA

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All Sky Fireball Network

By Dr. Tony Phillips.

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Nov. 2, 2015, the network reported 37 fireballs.
(22 sporadics, 14 Northern Taurids, 1 Orionid)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

 

Near Earth Asteroids

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

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  Earth approaching objects (objects that are known in the next 30 days)
Object Name Apporach Date Left AU Distance LD Distance Estimated Diameter* Relative Velocity
(2010 UJ7) 02nd November 2015 0 day(s) 0.1582 61.6 22 m – 49 m 13.31 km/s 47916 km/h
(2015 TG238) 03rd November 2015 1 day(s) 0.1865 72.6 76 m – 170 m 12.02 km/s 43272 km/h
(2015 TD179) 03rd November 2015 1 day(s) 0.0271 10.6 35 m – 78 m 10.12 km/s 36432 km/h
(2009 LD) 05th November 2015 3 day(s) 0.1397 54.4 15 m – 34 m 9.49 km/s 34164 km/h
(2002 XY38) 05th November 2015 3 day(s) 0.0828 32.2 70 m – 160 m 8.85 km/s 31860 km/h
(2015 TM143) 06th November 2015 4 day(s) 0.0690 26.8 51 m – 110 m 6.37 km/s 22932 km/h
(2015 TL143) 06th November 2015 4 day(s) 0.0657 25.6 70 m – 160 m 8.57 km/s 30852 km/h
(2008 VA15) 06th November 2015 4 day(s) 0.0750 29.2 51 m – 110 m 5.47 km/s 19692 km/h
(2008 WQ2) 08th November 2015 6 day(s) 0.0679 26.4 37 m – 82 m 8.45 km/s 30419.999999999996 km/h
(2012 HG8) 08th November 2015 6 day(s) 0.1924 74.9 310 m – 680 m 19.44 km/s 69984 km/h
138852 (2000 WN10) 10th November 2015 8 day(s) 0.1259 49.0 240 m – 540 m 13.78 km/s 49608 km/h
(2010 XC15) 10th November 2015 8 day(s) 0.1508 58.7 140 m – 310 m 12.75 km/s 45900 km/h
(2005 UN) 12th November 2015 10 day(s) 0.1550 60.3 18 m – 39 m 8.59 km/s 30924 km/h
(2000 WP19) 15th November 2015 13 day(s) 0.0586 22.8 80 m – 180 m 10.43 km/s 37548 km/h
(2012 LA11) 16th November 2015 14 day(s) 0.0678 26.4 16 m – 36 m 4.88 km/s 17568 km/h
(2009 WN6) 18th November 2015 16 day(s) 0.1087 42.3 31 m – 68 m 10.02 km/s 36072 km/h
(2015 TO178) 18th November 2015 16 day(s) 0.0913 35.5 33 m – 75 m 6.19 km/s 22284 km/h
413577 (2005 UL5) 19th November 2015 17 day(s) 0.0153 5.9 240 m – 540 m 18.99 km/s 68364 km/h
(2002 VV17) 19th November 2015 17 day(s) 0.1582 61.6 270 m – 590 m 10.26 km/s 36936 km/h
(2005 UJ6) 20th November 2015 18 day(s) 0.1580 61.5 130 m – 300 m 17.60 km/s 63360.00000000001 km/h
(2005 EW169) 21st November 2015 19 day(s) 0.0940 36.6 400 m – 900 m 8.90 km/s 32040 km/h
(2015 RQ82) 23rd November 2015 21 day(s) 0.0739 28.7 97 m – 220 m 8.24 km/s 29664 km/h
(2011 YS62) 23rd November 2015 21 day(s) 0.0915 35.6 310 m – 680 m 14.10 km/s 50760 km/h
(2009 WB105) 24th November 2015 22 day(s) 0.0385 15.0 58 m – 130 m 18.88 km/s 67968 km/h
(2010 YC1) 26th November 2015 24 day(s) 0.1948 75.8 150 m – 330 m 14.08 km/s 50688 km/h
(2004 BG41) 26th November 2015 24 day(s) 0.0770 30.0 35 m – 78 m 10.25 km/s 36900 km/h
(2012 XA133) 26th November 2015 24 day(s) 0.1134 44.1 180 m – 390 m 26.99 km/s 97164 km/h
(2011 HJ7) 26th November 2015 24 day(s) 0.0893 34.8 100 m – 230 m 13.57 km/s 48852 km/h
(2015 LE21) 27th November 2015 25 day(s) 0.1126 43.8 31 m – 68 m 3.71 km/s 13356 km/h
163696 (2003 EB50) 28th November 2015 26 day(s) 0.1254 48.8 1.4 km – 3.1 km 23.68 km/s 85248 km/h
(2007 EA26) 28th November 2015 26 day(s) 0.1115 43.4 210 m – 470 m 8.19 km/s 29484 km/h
(1999 VN6) 29th November 2015 27 day(s) 0.1865 72.6 350 m – 780 m 12.33 km/s 44388 km/h
345722 (2007 BG29) 30th November 2015 28 day(s) 0.1390 54.1 670 m – 1.5 km 11.26 km/s 40536 km/h
(2014 WM7) 30th November 2015 28 day(s) 0.0796 31.0 51 m – 110 m 10.08 km/s 36288 km/h
(2005 XT77) 01st December 2015 29 day(s) 0.1679 65.3 180 m – 390 m 9.70 km/s 34920 km/h
1 AU = ~150 million kilometers,1 LD = Lunar Distance = ~384,000 kilometers Source: NASA-NEO

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Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

 

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by Dr. Tony Phillips.

All Sky Fireball Network

 

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Oct. 14, 2015, the network reported 37 fireballs.
(29 sporadics, 5 Southern Taurids, 1 epsilon Geminid, 1 Orionid, 1 lambda Draconid)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

Near Earth Asteroids

 

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

 

On October 15, 2015 there were 1623 potentially hazardous asteroids.Recent & Upcoming Earth-asteroid encounters:

Asteroid
Date(UT)
Miss Distance
Size
2015 TN21
Oct 10
2.3 LD
17 m
2015 TB25
Oct 11
9.5 LD
55 m
2015 TK21
Oct 12
4.8 LD
24 m
2015 TG24
Oct 12
4 LD
19 m
2015 TC25
Oct 13
0.3 LD
5 m
2015 TC179
Oct 14
12.3 LD
25 m
2015 TG144
Oct 16
13.3 LD
32 m
2011 QD48
Oct 17
67.5 LD
1.0 km
2014 UR
Oct 18
3.8 LD
21 m
2011 SE97
Oct 18
11.9 LD
50 m
2015 TD144
Oct 20
11.7 LD
131 m
2001 UY4
Oct 21
58.2 LD
1.0 km
2015 TZ143
Oct 22
4.2 LD
24 m
2015 TB145
Oct 31
1.3 LD
455 m
2015 TD179
Nov 4
10.6 LD
52 m
2005 UL5
Nov 20
5.9 LD
390 m
2003 EB50
Nov 29
48.8 LD
2.2 km
2007 BG29
Dec 1
54.1 LD
1.1 km
1998 WT24
Dec 11
10.9 LD
1.1 km

Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

Space Weather

by Dr. Tony Phillips.

All Sky Fireball Network

 

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On May. 11, 2014, the network reported 9 fireballs.
(7 sporadics, 2 eta Aquariids)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

Near Earth Asteroids

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On May 14, 2014 there were 1473 potentially hazardous asteroids.

Recent & Upcoming Earth-asteroid encounters:

Asteroid
Date(UT)
Miss Distance
Size
2014 HT178
May 8
5.9 LD
21 m
2014 JD
May 9
7.7 LD
24 m
2014 JG55
May 10
0.3 LD
7 m
2014 JW55
May 13
4.3 LD
23 m
2014 JH15
May 17
8 LD
59 m
2010 JO33
May 17
4 LD
43 m
2005 UK1
May 20
36.7 LD
1.1 km
1997 WS22
May 21
47.1 LD
1.5 km
2002 JC
May 24
48.7 LD
1.4 km
2014 HQ124
Jun 8
3.2 LD
615 m

Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

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Space Weather.com

by Dr. Tony Phillips.

All Sky Fireball Network

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Apr. 25, 2014, the network reported 9 fireballs.
(9 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

On Apr. 24, 2014, the network reported 19 fireballs.
(15 sporadics, 4 April Lyrids)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

Near Earth Asteroids

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On April 26, 2014 there were 1466 potentially hazardous asteroids.

Recent & Upcoming Earth-asteroid encounters:

Asteroid
Date(UT)
Miss Distance
Size
2014 GG49
Apr 19
3.9 LD
31 m
2014 HP2
Apr 24
3.8 LD
15 m
2014 HU2
Apr 25
3.7 LD
22 m
2014 HM4
Apr 25
1.6 LD
18 m
2014 HW
Apr 27
2.1 LD
10 m
2007 HB15
Apr 28
6.7 LD
12 m
2014 HL2
Apr 28
8.8 LD
26 m
2014 HV2
Apr 29
1.4 LD
33 m
2010 JO33
May 17
4 LD
43 m
2005 UK1
May 20
36.7 LD
1.1 km
1997 WS22
May 21
47.1 LD
1.5 km
2002 JC
May 24
48.7 LD
1.4 km

Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

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Earth Watch Report  –  Space

Image Source  NASA

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RSOE EDIS

 Earth approaching objects (objects that are known in the next 30 days)

 

Object Name Apporach Date Left AU Distance LD Distance Estimated Diameter* Relative Velocity
(2012 RJ15) 11th March 2014 0 day(s) 0.1119 43.5 51 m – 110 m 13.72 km/s 49392 km/h
(2002 SZ) 11th March 2014 0 day(s) 0.1059 41.2 220 m – 490 m 19.28 km/s 69408 km/h
(2012 RJ15) 11th March 2014 0 day(s) 0.1119 43.5 51 m – 110 m 13.72 km/s 49392 km/h
(2002 SZ) 11th March 2014 0 day(s) 0.1059 41.2 220 m – 490 m 19.28 km/s 69408 km/h
(2001 SQ3) 11th March 2014 0 day(s) 0.1871 72.8 130 m – 280 m 18.26 km/s 65736 km/h
(2013 UX2) 12th March 2014 1 day(s) 0.1482 57.7 3.8 m – 8.6 m 2.94 km/s 10584 km/h
(2010 FR9) 14th March 2014 3 day(s) 0.1210 47.1 16 m – 36 m 10.80 km/s 38880 km/h
(2014 AY28) 16th March 2014 5 day(s) 0.0429 16.7 120 m – 270 m 5.37 km/s 19332 km/h
(2005 FN) 17th March 2014 6 day(s) 0.0812 31.6 11 m – 25 m 8.09 km/s 29124 km/h
(2012 XB112) 17th March 2014 6 day(s) 0.1175 45.7 2.5 m 4.02 km/s 14471.999999999998 km/h
(2013 WT44) 17th March 2014 6 day(s) 0.0327 12.7 320 m – 710 m 11.13 km/s 40068 km/h
(2004 YC) 19th March 2014 8 day(s) 0.1054 41.0 20 m – 45 m 9.35 km/s 33660 km/h
(2003 YX1) 20th March 2014 9 day(s) 0.1654 64.4 180 m – 390 m 11.76 km/s 42336 km/h
322756 (2001 CK32) 20th March 2014 9 day(s) 0.1465 57.0 440 m – 990 m 9.06 km/s 32616 km/h
(2011 HH) 20th March 2014 9 day(s) 0.1016 39.5 23 m – 52 m 5.04 km/s 18144 km/h
(2012 FK15) 21st March 2014 10 day(s) 0.1495 58.2 13 m – 30 m 13.66 km/s 49176 km/h
(2003 HT42) 22nd March 2014 11 day(s) 0.0942 36.6 29 m – 65 m 7.54 km/s 27144 km/h
325102 (2008 EY5) 23rd March 2014 12 day(s) 0.0789 30.7 250 m – 570 m 12.89 km/s 46404 km/h
(2013 GW68) 24th March 2014 13 day(s) 0.1950 75.9 110 m – 240 m 16.74 km/s 60263.99999999999 km/h
(2011 EN40) 24th March 2014 13 day(s) 0.1662 64.7 220 m – 490 m 27.82 km/s 100152 km/h
(2013 FD8) 25th March 2014 14 day(s) 0.0851 33.1 19 m – 43 m 11.55 km/s 41580 km/h
143649 (2003 QQ47) 25th March 2014 14 day(s) 0.1283 49.9 880 m – 2.0 km 32.41 km/s 116675.99999999999 km/h
(2012 FM35) 27th March 2014 16 day(s) 0.1916 74.6 9.2 m – 21 m 8.84 km/s 31824 km/h
(2011 FT53) 27th March 2014 16 day(s) 0.1007 39.2 23 m – 52 m 12.36 km/s 44496 km/h
(2012 EA) 29th March 2014 18 day(s) 0.0356 13.9 11 m – 25 m 6.00 km/s 21600 km/h
(2009 FW25) 29th March 2014 18 day(s) 0.0715 27.8 56 m – 120 m 12.34 km/s 44424 km/h
(2009 FD) 31st March 2014 20 day(s) 0.1009 39.3 100 m – 230 m 12.89 km/s 46404 km/h
(2009 SA100) 31st March 2014 20 day(s) 0.0445 17.3 44 m – 99 m 7.99 km/s 28764 km/h
(2010 GD35) 31st March 2014 20 day(s) 0.0489 19.0 33 m – 75 m 11.07 km/s 39852 km/h
(2009 CT) 31st March 2014 20 day(s) 0.1984 77.2 320 m – 710 m 13.35 km/s 48060 km/h
243566 (1995 SA) 01st April 2014 21 day(s) 0.1879 73.1 970 m – 2.2 km 14.22 km/s 51192 km/h
(2001 QC34) 01st April 2014 21 day(s) 0.1082 42.1 250 m – 570 m 4.78 km/s 17208 km/h
(2013 TT5) 03rd April 2014 23 day(s) 0.0959 37.3 15 m – 33 m 4.04 km/s 14544 km/h
86878 (2000 HD24) 03rd April 2014 23 day(s) 0.1084 42.2 800 m – 1.8 km 20.44 km/s 73584 km/h
(2010 GC35) 06th April 2014 26 day(s) 0.0677 26.3 31 m – 68 m 4.59 km/s 16524 km/h
(2008 OC6) 07th April 2014 27 day(s) 0.1949 75.8 530 m – 1.2 km 14.34 km/s 51624 km/h
330659 (2008 GG2) 09th April 2014 29 day(s) 0.1450 56.4 77 m – 170 m 7.16 km/s 25776 km/h
1 AU = ~150 million kilometers,1 LD = Lunar Distance = ~384,000 kilometers Source: NASA-NEO

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Space Weather

by Dr. Tony Phillips.

 All Sky Fireball Network

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Mar. 10, 2014, the network reported 3 fireballs.
(3 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

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Universe Today

Now’s the Time to See Asteroid Pallas at its Best

by David Dickinson on February 18, 2014

2 Pallas

Images of 2 Pallas taken by Hubble (right) and a simulation (left) of the surface. Credit: NASA/JPL.

Looking for something off of the beaten celestial path to observe? The coming weeks will offer telescope users a rare chance to catch a well known asteroid, as it puts on its best show for over two decades.

Over the coming weeks, 2 Pallas, one of the “big four” asteroids – or do you say minor/dwarf planet/planetoid? – reaches a favorable observing point known as opposition. Gliding northward through the constellations of Hydra and Sextans through February and March 2014, 2 Pallas presents a favorable binocular challenge for both northern and southern hemisphere observers as it rises to the east opposite to the setting Sun and transits the local meridian around midnight.

And although 2 Pallas reaches opposition roughly every 16 months as seen from our Earthly vantage point, 2014 provides a chance to catch it under exceptional circumstances. And to top it off, the other “Big 4” asteroids – 1 Ceres, 3 Juno and 4 Vesta – are all currently visible as well and reach opposition in the January through April time frame.

Pallas HST

2 Pallas as imaged by the Hubble Space Telescope. Credit: NASA

Pallas and its brethren also have a checkered history though the course of 19th century astronomy.  The second minor planet to be discovered, Heinrich Wilhelm Olbers spied 2 Pallas near opposition on the night of March 28th, 1802. Olbers made this discovery observing from his home rooftop observatory in Bremen, Germany using a five foot – telescopes were often measured in focal length rather than aperture in those days – Dollond refractor.

Olbers discovered 2 Pallas on the border of the astronomical constellations of Virgo and Coma Berenices shining at magnitude +7.5.

Pallas orbit

A simulation of the orbit of 2 Pallas near opposition this month. Credit: NASA/JPL Horizons.

If the name Olbers sounds familiar, it’s because he also lent it to the paradox that now bears his name. Obler’s paradox was one of the first true questions in cosmology posed in a scientific framework that asked: if the universe is actually infinite in time and space, then why isn’t the sky infinitely bright? And, on a curious side note, it was American horror author Edgar Allan Poe that delivered the answer.

But now back to our solar system. Olbers also discovered 4 Vesta just five years after Pallas.

He was definitely on a roll. The discoveries of these space rocks also grabbed the attention of Olbers contemporary, Johann Bode. Bode had formulated a law now known as the Titus-Bode Law that seemed to put the spacing of then known bodies of the solar system in tidy order. In fact, the Titus-Bode law seemed to predict that a body should lie between Mars and Jupiter, and for a brief time in the 18th century — and again in 2006 when the International Astronomical Union let Eris and Pluto in the door before kicking them back out — Ceres, Pallas, Juno and Vesta were all considered planets.

Read More Here

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Earth Watch Report  –  Space

Image Source  NASA

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  Earth approaching objects (objects that are known in the next 30 days)

Object Name Apporach Date Left AU Distance LD Distance Estimated Diameter* Relative Velocity
(2013 BZ45) 02nd February 2014 1 day(s) 0.0688 26.8 110 m – 250 m 8.98 km/s 32328 km/h
(2009 CG) 04th February 2014 3 day(s) 0.1311 51.0 70 m – 160 m 12.93 km/s 46548 km/h
(2011 MW1) 05th February 2014 4 day(s) 0.1017 39.6 92 m – 210 m 11.06 km/s 39816 km/h
348306 (2005 AY28) 06th February 2014 5 day(s) 0.0394 15.3 130 m – 300 m 17.06 km/s 61415.99999999999 km/h
(2004 AS1) 08th February 2014 7 day(s) 0.1286 50.0 210 m – 470 m 12.85 km/s 46260 km/h
(2006 DP14) 09th February 2014 8 day(s) 0.0160 6.2 460 m – 1.0 km 27.13 km/s 97668 km/h
(2013 BS45) 10th February 2014 9 day(s) 0.0317 12.3 18 m – 39 m 3.76 km/s 13536 km/h
(2007 BG) 13th February 2014 12 day(s) 0.1476 57.5 330 m – 750 m 7.99 km/s 28764 km/h
(2008 BP16) 16th February 2014 15 day(s) 0.1672 65.1 120 m – 270 m 19.78 km/s 71208 km/h
(2000 EM26) 17th February 2014 16 day(s) 0.0227 8.8 120 m – 270 m 12.37 km/s 44532 km/h
85953 (1999 FK21) 17th February 2014 16 day(s) 0.1910 74.3 590 m 24.29 km/s 87444 km/h
(1999 SK10) 20th February 2014 19 day(s) 0.1838 71.5 320 m – 710 m 11.48 km/s 41328 km/h
(2012 DY43) 20th February 2014 19 day(s) 0.0403 15.7 67 m – 150 m 19.41 km/s 69876 km/h
(2001 EB18) 21st February 2014 20 day(s) 0.1161 45.2 370 m – 820 m 26.33 km/s 94788 km/h
(2006 DS14) 22nd February 2014 21 day(s) 0.1644 64.0 220 m – 490 m 14.41 km/s 51876 km/h
(2009 EC1) 25th February 2014 24 day(s) 0.1246 48.5 73 m – 160 m 8.07 km/s 29052 km/h
(2013 TN127) 01st March 2014 28 day(s) 0.1930 75.1 15 m – 34 m 8.18 km/s 29448 km/h
(2006 FV) 01st March 2014 28 day(s) 0.1145 44.5 64 m – 140 m 6.19 km/s 22284 km/h
1 AU = ~150 million kilometers,1 LD = Lunar Distance = ~384,000 kilometers Source: NASA-NEO

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BPEarthWatch BPEarthWatch

Published on Jan 11, 2014

Solar,Quake,Volcano and Weather Links http://www.BpearthWatch.Com
http://www.amsmeteors.org/fireball_ev…
http://lunarmeteoritehunters.blogspot…

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Space Weather

All Sky Fireball Network

by Dr. Tony Phillips.

 

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA’s Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth’s atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Jan. 11, 2014, the network reported 14 fireballs.
(14 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point–Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

 

Near Earth Asteroids

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On January 12, 2014 there were 1450 potentially hazardous asteroids.

Recent & Upcoming Earth-asteroid encounters:

Asteroid
Date(UT)
Miss Distance
Size
2014 AD16
Jan 8
1.5 LD
15 m
2014 AE29
Jan 9
4.1 LD
15 m
2014 AW32
Jan 10
0.5 LD
15 m
2014 AZ32
Jan 11
6.2 LD
28 m
2007 SJ
Jan 21
18.9 LD
1.9 km
2012 BX34
Jan 28
9.6 LD
13 m
2006 DP14
Feb 10
6.2 LD
730 m
2000 EM26
Feb 18
8.8 LD
195 m
2000 EE14
Mar 6
64.6 LD
1.8 km
2003 QQ47
Mar 26
49.9 LD
1.4 km

Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

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