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Photograph of quarter moon taken from Shuttle Columbia on Jan. 26, 2003

February 1, 2003

Possible Recording: Space Shuttle Columbia Accident

 

General Information

Seismographs

There is a complication on the possible recordings of the shuttle explosion. It turns out that there WAS a moderate sized earthquake that occurred right around the time of the Columbia disaster. We missed it over the weekend, because the USGS didn't post it until some time Monday. Here is the relevant hypocentral information:

01-FEB-2003 13:47:51
Lat 7.62
Long -81.75
Mag 5
Dep. 39.7
PANAMA

This means that the large, long-period oscillations recorded at around 1359 UTC are most likely surface waves produced by the Panama event. With some filtering, we should be able to separate long-period surface waves from possible shuttle-related events. Look for relatively high-frequencies, perhaps using a high-pass filter at 1 Hz, and see if you can find any identifiable events.

We'll keep you informed as more info appears.

If you are an IU-PEPP network station, please post your data on the SiteScape Forum. (Day: 2003:032, Time interval: 13:50 - 14:10)

Maps

 

Columbia's decent seen over Owens Valley Radio Observatory north of Big Pine, Calif., shortly before 6 a.m. (east is to the right)

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