RE: LightSail-A: preliminary post-sail deployment elements

From: Ted Molczan via Seesat-l <>
Date: Sat, 6 Jun 2015 13:16:08 -0400
As I reported late Thursday, deployment of LightSail-A's solar sail depends on restoring communications with the
spacecraft. It was last heard from on Wednesday, not long after it deployed its solar panels.

The latest status report states, "... team reviewing go/no-go sail deployment criteria, and is ready to move forward at
first available opportunity."

I interpret that to mean that they could try to command sail deployment soon after regaining communications.

I intend to issue new post-sail deployment search TLEs ASAP after receiving word that the deployment may have occurred.
ASAP could be anywhere from ~2 to 10 hours, depending on my proximity to my computer when the news arrives.

Until then, LightSail-A should be assumed to be in the following orbit, and too faint to be seen easily:

1 90726U          15156.84281789  .00025322  00000-0  67301-3 0   253
2 90726  55.0121 269.9399 0247556 221.6417 288.5573 15.12666037  2455

Ted Molczan

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Received on Sat Jun 06 2015 - 12:16:44 UTC

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