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Project Dorothy

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sigblips
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In celebration of the 50th anniversary of Project OZMA, Project Dorothy is a worldwide joint SETI observation. Five target stars will be observed in the optical, microwave, and LOFAR frequencies.

http://www.seti.org/PR/newobservingproject
http://www.nhao.jp/~narusawa/oseti/project-dorothy.html
http://news.discovery.com/space/worldwide-seti-effort-revisits-stellar-n...
http://www.spacedaily.com/reports/50th_Anniversary_Of_SETI_Commemorated_...
http://www.networkworld.com/community/node/68258

Targets

  • Tau Ceti                      
  • Eta Arietis
  • Epsilon Eridani
  • HD 69830
  • 55 Cancri

Nineteen observatories around the world are participating including the ATA and Arecibo. I'm sure the data collected from the ATA will be uploaded to setiQuest later this month. I look forward to that but I would like to challenge the other 18 observatories to post their Project Dorothy sampled data streams to the Internet too. Here is my offer. I will analyze with baudline and blog about any Project Dorothy data streams that are posted. Data with both ON and OFF target beams are preferred so post-candidate signal verification is possible. All crazy file formats (except for FITS) are welcome! (:

stephf0716
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Interesting!

I enjoyed reading the Discovery article on this. Sounds awesome, can't wait to see the data analyzed from 55 CnC!

Anders Feder
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That's a great

That's a great idea/challenge, sigblips. Probably, setiQuest could even offer to host the data...

sigblips
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Amazon has an offer to host

Amazon has an offer to host public data sets for free so I don't think that will be a barrier. The big idea here is open data access and what it means for the future of science. It's a paradigm changing concept that has an incredible amount of potential. The barrier will be do scientists really want to share their data? That answer might be no.

Anders Feder
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In any case, the relevant

In any case, the relevant people probably aren't reading this forum....

sigblips
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They're here ...I've seen

They're here ...

I've seen some of their names listed in the forum's "currently active users" section.

sigblips
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The SETI Institute's project

The SETI Institute's Project Dorothy observations have been uploaded to the setiQuest data section. Included are the five targets listed above plus Gliese 581 as a bonus. The observations were done on November 5th and 6th at the 1420 MHz frequency. Each target dataset is 30+ GB, so the entire set is 180+ GB! Anyone interested in analyzing all of the data is advised to sign up for a free AWS account (http://aws.amazon.com/free).

Unfortunately parallel OFF beams were not captured so post-observation signal verification isn't possible. According to the meta timestamps three of the Nov 6th datasets (Epsilon Eridani, Eta Arietis, HD 69830) were collected back-to-back so drifting RFI should overlap datasets. While not as good as true OFF beams they will be a useful RFI discrimination tool.

zigzag
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Wow!, a worldwide celebration

Wow!, a worldwide celebration of Frank Drake's Project OZMA. 50 years ago, and we're still searching. That sure says something about the human knack for curiosity. We want to know.  We need to know.

Did anybody analyze the data? What was found?

sigblips
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Project Dorothy was two years

Project Dorothy was two years ago.  So that makes it 52 years since Project OZMA. You can read more about setiQuest's part in Project Dorothy here:

http://setiquest.org/wiki/index.php/Project_Dorothy

Yes, the data was analyzed and nothing odd was found. Just a lot of the usual RFI suspects.

zigzag
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The usual RFI suspects. I

The usual RFI suspects. I like it. Sounds like a movie reference. wink

That wiki page says the antenna was pointed the opposite direction for all but one of the Dorothy data collections. Does this mean all the Dorothy data is bad? Did Frank Drake go back and collect more good data?

sigblips
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The data is still good, the

The data is still good, the ATA was just pointing at the wrong target.

Frank Drake wasn't involved in Project Dorothy's data collection. Gerry Harp, Director of SETI Research at the SETI Institute, is the person who collected the data. The incorrect declination was discovered a year later. No one has gone back and collected any new Dorothy data.

zigzag
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Why not? It seems really easy

Why not? It seems really easy for them to collect more data.

wrong direction = bad data blush

sigblips
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Nearby Tau Ceti may host five
sigblips
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Tau Ceti exoplanet

Tau Ceti exoplanet biosignature possibility. The SETI Institute asks what is the next step?  SigBlips answers:

https://twitter.com/SETIInstitute/status/284071270277058562