Re: [ap-gto] 2007TU24 Flyby


Jan 28, 2008

 


----------------------------

#20858 Jan 28, 2008

This 300 meter-class object flew by the earth this evening at a distance

of "only" 400,000 miles, a little larger than the distance to the moon.

The flyby for me was a truly exciting event. Using the JPL ephemeris,

the object appeared on schedule and at less than 1 arc minute from the

predicted position.



I have 803 frames of the asteroid, which was easily visible in exposures

as short as 1 second. I will put some of these images into an animation,

but it may take a few days.



Meanwhile, here is an image consisting of 33 one-second exposures (mean

combined)



duphy4.drexel.edu/~steinberg/astro/2008/2007TU24-33X1SEC-MEAN-CAL.JPG





duphy4.drexel.edu/~steinberg/astro/\

2008/2007TU24-33X1SEC-MEAN-CAL.JPG



Dick



ST8XME - 12" Meade LX200(not)R @ f/5 - AP1200



--

Richard Steinberg

Professor of Physics

Drexel University

32nd & Chestnut Streets

Philadelphia, PA 19104

fax: 1-(215) 895-5934

email: steinberg@...



----------------------------

#20859 Jan 28, 2008

that's really awesome Richard. Great catch!



----- Original Message -----

From: Richard Steinberg

To: undisclosed-recipients:

Sent: Monday, January 28, 2008 10:09 PM

Subject: [ap-gto] 2007TU24 Flyby





This 300 meter-class object flew by the earth this evening at a distance

of "only" 400,000 miles, a little larger than the distance to the moon.

The flyby for me was a truly exciting event. Using the JPL ephemeris,

the object appeared on schedule and at less than 1 arc minute from the

predicted position.



I have 803 frames of the asteroid, which was easily visible in exposures

as short as 1 second. I will put some of these images into an animation,

but it may take a few days.



Meanwhile, here is an image consisting of 33 one-second exposures (mean

combined)



duphy4.drexel.edu/~steinberg/astro/2008/2007TU24-33X1SEC-MEAN-CAL.JPG



duphy4.drexel.edu/~steinberg/astro/\

2008/2007TU24-33X1SEC-MEAN-CAL.JPG



Dick



ST8XME - 12" Meade LX200(not)R @ f/5 - AP1200



--

Richard Steinberg

Professor of Physics

Drexel University

32nd & Chestnut Streets

Philadelphia, PA 19104

fax: 1-(215) 895-5934

email: steinberg@...











[Non-text portions of this message have been removed]



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