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[This page generated: 9 May 2008 21:30:28 UTC]

Multi-Beam Data Recorder Status

Values as of 0m ago
ALFA* receiverNot Running
RA8.9129 hrs (133.6941°)
Dec20.1085°

This point in the sky has been covered by the Sloan Digital Sky Survey. Here is an image of the night sky centered around these coordinates (click on the image for another with more resolution):

Sloan Image

* The SETI multibeam data recorder collects data by piggybacking on the Arecibo ALFA receiver. ALFA is one among several receivers at Arecibo (there are transmitters as well) and is only turned on part of the time. The data recorder usually runs at all times but only records data when the ALFA receiver is on. At other times the recorder idles but watches for ALFA to come on, at which time recording resumes.

  

Master Science Database

Table#Last 24 hours
Spikes662,920,6331,126,550
Gaussians273,848,097156,419
Pulses374,952,799439,250
Triplets376,976,755283,241
Workunits416,400,684482,440
Results405,801,319459,490
Overflow** rate3.6% (inserted during last 10 minutes)

 ** results that exited early due to excessive noise

Signals Already Found at Current Telescope Sky Position***

Type#Multiplets****
Spikes76 20
Gaussians243 8
Pulses124 27
Triplets89 24

 *** All signals previously found by SETI@home that fall within 0.0500 degrees of where Arecibo Observatory is currently pointing (coordinates taken 0 minutes ago). If we are recording data, these numbers will eventually increase.
 **** Multiplets are groups of signals of the same type seen over multiple different observations which also fall within a small frequency window (10.0000 Hz). They are statistically common, even in random noise, and typically are caused by RFI, but nevertheless score better when compared to lone signals.
 

Copyright © 2008 University of California