Saturday, 30 June 2012

Quora: Jumpstarting my Productivity

Filed under: Astronomy,Hiking,Photography,Projects,School,Space — Tags: — George Privon @ 12:52

I’m sure everyone reading this has experienced the feeling where you have a lot to do but no motivation to do it. It’s frustrating. It needs to be dealt with somehow though.

I deal with it in different ways (depending on my mood, how time sensitive the to-do task is, etc.), and no one way works in all situations.

Lately, when I’m feeling unmotivated about science or research, I’ve been trying something new… I go answer questions on Quora.

(more…)

Thursday, 29 April 2010

At the first light for the Solar Dynamics Observatory

Filed under: Space — Tags: , , , — George Privon @ 15:13

The first light press release for NASA’s Solar Dynamics Observatory was just last week! I’ve written a bit about SDO, particularly about the launch. Aleya is heavily involved with the project, particularly the education and public outreach (EPO) aspect.

In just a month or so of taking data, SDO is already capturing fantastic images of the Sun. Gaze upon the awesome sample image:

NASA organized another tweetup for the first light press conference. As with the Solar Dynamics Observatory launch, our job as “twitter correspondents” was to communicate the events at the press conference while also interacting with other people on twitter.

Twitter correspondents

The twitter correspondents group had two major events: a tour of the Air and Space Museum in DC (@AirAndSpace), and the SDO press conference! I love visiting Air and Space, there are so many cool vehicles, artifacts and displays. I’ve uploaded some pictures to flickr.

The second, and most important stop was the press conference. We were treated to the first release of images from SDO, including some fantastic movies of a prominence and a spectacular ultraviolet image of the Sun. The images, movies and spectra were briefly described by the instrument PIs (principal investigators) and the SDO Project Scientist (Dean Pesnell).

Dean Pesnell SDO Instrument PI EVE PI iPad App

The first light images and movies are available on the NASA SDO First Light page.

There are a few more pictures from the press conference on flickr.

Friday, 26 February 2010

A few more launch pictures

Filed under: Photography,Space — Tags: , , , — George Privon @ 16:22

I spent the morning in the digital media lab scanning film. After a very slow start (I’d forgotten how to use the software!) I scanned both rolls of film shot at the STS-130 and SDO launches. Naturally, I selected a few of the best shots and posted them to flickr. All three were shot using a Mamiya 645 Super with either color negative (first two) or color slide film (last one).


STS-130 upward

STS-130

SDO Launch



(SDO and the Atlas V are in that last one, I promise :) )

SDO Shockwave Redux – Enhanced Images & Analysis

Filed under: Photography,Space — Tags: , — George Privon @ 12:45

As I noted Wednesday, I have gotten a lot of feedback and communication on my APOD picture. One in particular came from Kevin Woller (woller.kevin gmail dot com), a geophysicist who ran the photo through the ERMapper and used a “shaded relief” technique to bring out the shockwaves in the image. Very cool how the technique really makes the individual waves more visible. Thanks to Kevin for sending the images and allowing me to post them.

rocketwave1

rocketwave2

Also, in a separate analysis Geoffrey Forden at Arms Control Wonk investigated the source of the shockwaves from various features on the Atlas V rocket. Ten or eleven separate shockwaves are visible which are identified with corresponding features on the Atlas V. I’m not sure if it’s totally accurate or not, but it seems plausible.

Thursday, 11 February 2010

Rocket Launches: If at first you don’t succeed…

This week I was fortunate enough to witness two launches: the space shuttle for STS-130, and the Solar Dynamics Observatory. I’ve already posted some pictures from STS-130 (linked above).

As with STS-130, the SDO launch was scrubbed on the first day. After going through the whole 1 hour launch window on 10 February, the winds were consistently too high (above 20 knots). We thought we were going to be able to launch at the very end of the window and even came out of the hold at T-4 min. Sadly, winds went above the limit after just 1 second! So, it was scrubbed for 24 hours.


Sunny Florida

We tried again today. The launch window was from 10:23 – 11:23 and the winds were looking better today. There was a slight worry about clouds, but they didn’t prove to be an issue.


Launch Day #2

After yesterday’s scrub we were all anxious to see the rocket launch today. The weather is forecast to be bad tomorrow (rain, rain, rain) so Saturday would have been the next chance. During the scheduled hold at T-4 minutes, we heard that the weather was go and they were aiming for launch at the beginning of the window!


Ready to launch

At 10:19, the countdown resumed to much cheering an excitement. Aleya was jumping around in anticipation as the clock ticked down. With 10 seconds remaining, the crowd helped things along: “9… 8… 7… 6… 5… 4… 3… 2… 1.. 0!”


Liftoff!

Clearing the tower

The Atlas V was launched without booster rockets so the initial acceleration was slow. It seemed to take an agonizingly long time for the rocket to move… Finally, (it seemed!) the rocket was well on it’s way.


Up Up and Away

As the rocket picked up speed we followed it skyward. It continued climbing upwards, heading for a cloud and a sun dog. We were then treated to an amazing sight: the shockwave from the rocket’s supersonic travel rippled outwards through the cloud, destroying the sun dog:


Shockwave

Video of the event was captured by Anna Herbst, and hosted on spaceweather.com (.mov movie file). Very cool, I highly recommend watching it.

After blowing through the cloud, the rocket began creating a visible contrail behind it, snaking skyward.


Gone

We kept watching until we lost view of the rocket, well on its way to orbit.

I had a fantastic weekend as part of the group of twitter correspondents selected to cover the launch and associated events. It was an excellent group of people and we had a great time witnessing the launch of a much anticipated satellite. For some basic info on the goals of the Solar Dynamics Observatory, see the SDO website or this nice summary by Nicole, the Noisy Astronomer.


Twitter Correspondents

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