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TOPIC: Asteroid 2010 AL30


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RE: Asteroid 2010 AL30
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Orbital elements:
2010 AL30 Earth MOID = 0.0000 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 281.43686 (2000.0) P Q
n 0.98334652 Peri. 104.60248 -0.78961550 +0.61036841
a 1.0015324 Node 113.05294 -0.58600435 -0.71972518
e 0.3058439 Incl. 3.92041 -0.18195126 -0.33082634
P 1.00 H 27.1 G 0.15 U 5

MPEC 2010 - A64


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Absolute Magnitude (H) 27.1 mag
Slope parameter (G) 0.15 mag
Perihelion 0.6952 AU
Aphelion 1.3078 AU
Asc. node-Earth separation 0.00018 AU
Desc. node-Earth separation -0.17217 AU
Earth MOID 4e-05 AU
Orbital period 366.095 days
Date of orbit computation Jan 12 18:50

Value 1-Sigma variation Units
a 1.00153 1.722e-05 AU
e 0.305838 4.489e-05
i 3.92 0.0006276 deg
113.053 6.589e-05 deg
w 104.603 0.0004648 deg
M 281.436 0.005469 deg



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Asteroid path (rough)

asteroidpathb.gif
Expand (24kb, 800 x 600)

Google earth file (2kb, kmz)

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Orbital elements:
2010 AL30 Earth MOID = 0.0000 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 281.43595 (2000.0) P Q
n 0.98335109 Peri. 104.60258 -0.78961441 +0.61036995
a 1.0015293 Node 113.05296 -0.58600526 -0.71972418
e 0.3058375 Incl. 3.92033 -0.18195309 -0.33082567
P 1.00 H 27.2 G 0.15 U 5

MPEC 2010 - A63


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Astronomers say it may be space junk or it could be a tiny asteroid, too small to cause damage even if it hit. It's 33 to 50 feet wide at most.
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NASA says that on Wednesday at 7:47 a.m. EST, it will streak by, missing Earth by about 80,000 miles. In the western United States it may be bright enough to be seen with a good amateur telescope.
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Ed ~ At closest approach to the Earth on the 13th January, the  asteroid will pass through the constellations of Orion, Taurus, and Pisces.
Its maximum brightness is will be around magnitude 14, so to visually observe it will require at least an 8" telescope or above.

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2010_AL30_2010Jan12s_001_4.jpg

Image of asteroid 2010 AL30 taken at 2010 Jan 12 at 15h 46m UTC.
The asteroid is the dot near the center of the image.
Asteroid motion was 0.56"/sec.


Source


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Orbital elements:
2010 AL30 Earth MOID = 0.0000 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 281.43584 (2000.0) P Q
n 0.98335199 Peri. 104.60274 -0.78961245 +0.61037246
a 1.0015287 Node 113.05297 -0.58600763 -0.71972231
e 0.3058382 Incl. 3.92034 -0.18195394 -0.33082512
P 1.00 H 27.1 G 0.15 U 5

MPEC 2010 - A62


Ephemeris:
2010 AL30 a,e,i = 1.00, 0.31, 4 q = 0.6952
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2010 01 12.0 07 43.96 +09 26.4 0.00863 0.992 167.4 12.4 17.5
2010 01 12.1 07 42.35 +09 31.4 0.00808 0.991 167.6 12.3 17.4
2010 01 12.2 07 40.50 +09 37.3 0.00752 0.991 167.8 12.1 17.2
2010 01 12.3 07 38.35 +09 44.0 0.00697 0.990 168.0 11.9 17.0
2010 01 12.4 07 35.82 +09 51.8 0.00641 0.990 168.2 11.7 16.8
2010 01 12.5 07 32.82 +10 01.0 0.00586 0.989 168.4 11.6 16.6
2010 01 12.6 07 29.19 +10 12.1 0.00531 0.989 168.5 11.5 16.4
2010 01 12.7 07 24.70 +10 25.4 0.00476 0.988 168.5 11.5 16.2
2010 01 12.8 07 19.04 +10 42.0 0.00421 0.988 168.3 11.6 15.9
2010 01 12.9 07 11.66 +11 02.9 0.00366 0.987 167.9 12.1 15.6
2010 01 13.0 07 01.68 +11 30.1 0.00312 0.987 166.8 13.1 15.3
2010 01 13.1 06 47.49 +12 06.4 0.00258 0.986 164.7 15.2 15.0
2010 01 13.2 06 25.92 +12 56.2 0.00206 0.986 160.7 19.2 14.6
2010 01 13.3 05 50.04 +14 03.4 0.00157 0.985 153.1 26.8 14.3
2010 01 13.4 04 43.93 +15 13.7 0.00114 0.984 138.1 41.9 14.0
2010 01 13.5 02 42.19 +14 13.7 0.00088 0.984 109.5 70.5 14.3
2010 01 13.6 00 15.48 +07 58.7 0.00094 0.983 73.7 106.3 15.9
2010 01 13.7 22 41.27 +01 57.0 0.00128 0.983 50.0 129.9 18.3
2010 01 13.8 21 51.68 -01 26.9 0.00174 0.982 37.6 142.3 20.4
2010 01 13.9 21 23.50 -03 21.4 0.00224 0.982 30.7 149.2 22.1
2010 01 14.0 21 05.79 -04 31.7 0.00277 0.981 26.5 153.5 23.4



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It was discovered on January 10 by LINEAR, specifically by M. Blythe, G. Spitz, R. Brungard, J. Paige, P. Festler of 704 Lincoln Laboratory ETS, New Mexico using a 1.0-m reflector.  Unusually, its orbital period is almost exactly 1.00 year which might mean it could be artificial in nature.  However, its encounter velocity is high as it passes safely by the Earth which means it must almost certainly be of a natural origin, in which case it may be around 10 metres across.
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Orbital elements:
2010 AL30 Earth MOID = 0.0000 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 281.41974 (2000.0) P Q
n 0.98342606 Peri. 104.60234 -0.78961614 +0.61037063
a 1.0014784 Node 113.05321 -0.58599435 -0.71972705
e 0.3057074 Incl. 3.91857 -0.18198069 -0.33081817
P 1.00 H 27.0 G 0.15 U 6

MPEC 2010 - A61


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