Week in Space Data, every Friday.

A rising light on the horizon: night launches only. San Diego is far from Vandenberg but the twilight "jellyfish" plumes are visible from here as a glowing arc in the northwest; night launches show as a faint rising star.
Daytime launches are usually invisible from this distance. At night, watch for a bright, steady point climbing from the horizon in the direction shown, arcing over one to three minutes; twilight launches can paint the sky.
Unobstructed northwest horizon.
Elevated, dark, faces the right way.
Making the trip? The full Vandenberg viewing guide has the pad-side spots, road closures and timing.
A rising light on the horizon: night launches only. San Diego is about 238 miles (384 km) from SLC-4E, Vandenberg SFB, bearing 305° (NW). Daytime launches are usually invisible from this distance. At night, watch for a bright, steady point climbing from the horizon in the direction shown, arcing over one to three minutes; twilight launches can paint the sky.
Face NW (305°) toward Vandenberg. The rocket rises from that point on the horizon and arcs downrange: for Vandenberg launches that generally means south or southwest over the Pacific.
Two to three minutes for the first stage, sometimes longer at night when the second-stage plume is sunlit. Twilight launches, just after sunset or before sunrise, produce the biggest, longest-lasting displays.