The below information just in Launch-Alert mailing list (see http://mailman.qth.net/mailman/listinfo/launch-alert for more info about the list.

There’s a launch tonight that should be visible if the weather holds.

Tonight’s planned launch of an Atlas V rocket from Vandenberg AFB remains on schedule for 11:13 p.m. The probability of acceptable weather at launch time has greatly improved.

After liftoff, the Atlas will fly southward and could be visible over a wide area.

For current countdown status, go to:

http://spaceflightnow.com/atlas/av042/status.html

and from earlier post:

Although the weather forecast does not look promising, tonight’s Atlas V launch from Vandenberg AFB appears to be on schedule for 11:13 p.m. PST.

In addition to seeing the launch, Ventura County and Malibu residents may hear a sonic boom several minutes after liftoff. This happened following the 2011 April 14 Atlas V night launch from Vandenberg. As an experiment, I may place a pro-quality microphone near an open window and use my audio software to start an all-night recording before I turn in.

Here is updated info from Vandenberg AFB regarding the satellite feed for the launch:

ALL TIMES PACIFIC STANDARD TIME

LAUNCH ? THURSDAY, DECEMBER 5, 2013

BARS AND TONE ? 10:15 P.M.

PROGRAM START ? 10:53 P.M.

Transmission FOR digital HIGH definiton

SATELLITE: AMC-1

TRANSPONDER: C24

BAND: C-Band HD

ORBITAL POSITION: 103 degrees west

HD BANDWIDTH: 18 MHz

DOWNLINK FREQ: 4171 MHz (Horizontal Vertical)

SYMBOL RATE: 13

FEC: ¾

DATA RATE: 17.9705

DVBS-QPSK

MPEG-2

AUDIO EMBEDDED