ALFA Installation & Status Steve Torchinsky GALFA Meet3, Arecibo August 29, 2004 Sky test in Australia March 16, 2004 Cold test in Australia March 16, 2004 Cold load in Australia March 16, 2004 Packing up in Australia March 19, 2004 Arrival at Arecibo April 1, 2004 Taking Possesion April 1, 2004 Pre-installation testing April 5, 2004 Inside ALFA April 5, 2004 Practice Run April 13, 2004 Day before installation April 20, 2004 Waiting to go April 20, 2004 At the bottom of the bowl April 21, 2004 Liftoff! April 21, 2004 ALFA soars April 21, 2004 Approaching the Dome April 21, 2004 Entering the Dome April 21, 2004 Into the rotary floor April 21, 2004 ALFA installed April 21, 2004 7 beams April 21, 2004 First Light April 24, 2004 ALFA and OH May 11, /1667 OH Lines observed from Comet 2001 Q4 (NEAT) using ALFA (more later from Ellen) Hiccup #1 June, 2004 Motor encoder failure Precursor: PALFA August 1, 2004 First new ALFA pulsar August 1, 2004 Hiccup #1: resolved August, 2004 Motor replaced No RFI from motor August 26, 2004 Cabinet door closedCabinet door open Keep an eye out for harmonics of 13.33MHz (more later from Desh) Hiccup #2 August, 2004 Short circuit to LNA Beam 0A Photo: April 5, 2004 Hiccup #2: continues August 28, 2004 EALFA Drift Precursor August 22, 2004 Detects galaxies! Giovanelli, Hoffman, Haynes, Catinella, Momjian, Muller, Kent, et al Gain, SEFD, Tsys July 20, 2004(more later from Desh) ALFA today August 28, 2004 Pulsar Precursor ongoing Extragalactic Drift precursor on going GALFA precursor starts Friday Array rotation is enabled (parallactic angle tracking, this week) Motor electronics well shielded Center beam, pol-A is still offline
