Doug,
It means the orbit is such that the satellite comes over at about the same local times every day. IE synchronized to the sun. Basically requires an inclination of about 98 degrees. AO-91, AO-92, and many others use this. AO-85 does not.
https://en.wikipedia.org/wiki/Sun-synchronous_orbit
73,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Doug <Person via AMSAT-BB <Sent: Thursday, August 29, 2019 14:17 PM <To: amsat-bb@amsat.org <Subject: Re: [amsat-bb] SpaceX SmallSat Rideshare Program < <Doesn't "sun synchronous orbit" mean orbiting the sun? Why would that be <of value for amateur radio communications? < <Doug -- KJ0F < <On 8/29/2019 9:54 AM, Gregory Beat via AMSAT-BB wrote: <> SpaceX SmallSat Rideshare Program <> Monthly missions as low as $1 million <> https://www.spacex.com/smallsat <> <> SpaceX’s SmallSat Rideshare Program will provide small satellite operators <with regularly scheduled, dedicated Falcon 9 rideshare missions to sun <synchronous orbit (SSO) for ESPA class payloads for as low as $1M per mission, <which includes up to 200 kg of payload mass. <> Unlike traditional rideshare opportunities, these missions will not be <dependent on a primary. These missions will be pre-scheduled and will not be <held up by delays with co-passengers. <> <> For payloads who run into development or production challenges leading up <to launch, SpaceX will allow them to apply 100% of monies paid towards the <cost of rebooking on a subsequent mission, subject to a 10% rebooking fee. <> <> == <> greg, w9gb <> <> Sent from iPad Air <> _______________________________________________ <> Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum <available <> to all interested persons worldwide without requiring membership. <Opinions expressed <> are solely those of the author, and do not reflect the official views of <AMSAT-NA. <> Not an AMSAT-NA member? Join now to support the amateur satellite <program! <> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb < <-- <73 de Doug -- KJ0F < <_______________________________________________ <Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available <to all interested persons worldwide without requiring membership. Opinions <expressed <are solely those of the author, and do not reflect the official views of AMSAT- <NA. <Not an AMSAT-NA member? Join now to support the amateur satellite <program! <Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb