Hi All,
I've just tracked a pass over Delft (PA-land) of nanosail-d Sounds like ordinary 1200BPS AFSK to me. Tomorrow I will have a TNC connected in monitor mode + maybe the TH-D7. I've used the tracking yagi's of the ISIS ground station.
I expect the beacon to be UI frames. Their website does not say so on the front page. However, they have hidden a PDF away on the data submission page. Direct link: http://beacon.engr.scu.edu/BeaconProcessingSystem/NanoSailDBeaconDecoding.pd... Additionally, Bob is right, there is NO bitrade or modulation type in this document.
73s
Wouter Weggelaar PA3WEG
On Thu, Jan 20, 2011 at 12:12 AM, Bob Bruninga bruninga@usna.edu wrote:
Would someone pass back to the FASTSAT and NANOSAT folks that they should tell us what we are listening for? AX.25? 1200 baud, 9600 baud? CW? What are we listening for?
I just had an overhead pass, but by the time I went through all their web pages and links, I found NOTHING useful. By the time I gave up, and got back to the radio, I really missed the whole pass.
Bob, Wb4APR
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Dave Taylor Sent: Wednesday, January 19, 2011 4:24 PM To: amsat Subject: [amsat-bb] Fwd: NanoSail-D Ejects; NASA Seeks Amateur Radio Operators' Aid to Listen for Beacon Signal
For those interested...
-- Dave, W8AAS
-----Original Message-----
RELEASE: 11-009
NANOSAIL-D EJECTS; NASA SEEKS AMATUER RADIO OPERATORS' AID TO LISTEN FOR BEACON SIGNAL
HUNTSVILLE, Ala. - Wednesday, Jan. 19 at 11:30 a.m. EST, engineers at Marshall Space Flight Center in Huntsville, Ala., confirmed that the NanoSail-D nanosatellite ejected from Fast Affordable Scientific and Technology Satellite, FASTSAT. The ejection event occurred spontaneously and was identified this morning when engineers at the center analyzed onboard FASTSAT telemetry. The ejection of NanoSail-D also has been confirmed by ground-based satellite tracking assets.
Amateur ham operators are asked to listen for the signal to verify NanoSail-D is operating. This information should be sent to the NanoSail-D dashboard at: http://nanosaild.engr.scu.edu/dashboard.htm. The NanoSail-D beacon signal can be found at 437.270 MHz.
The NanoSail-D science team is hopeful the nanosatellite is healthy and can complete its solar sail mission. After ejection, a timer within NanoSail-D begins a three-day countdown as the satellite orbits the Earth. Once the timer reaches zero, four booms will quickly deploy and the NanoSail-D sail will start to unfold to a 100-square-foot polymer sail. Within five seconds the sail fully unfurls.
"This is great news for our team. We're anxious to hear the beacon which tells us that NanoSail-D is healthy and operating as planned," said Dean Alhorn, NanoSail-D principal investigator and aerospace engineer at the Marshall Center. "The science team is hopeful to see that NanoSail-D is operational and will be able to unfurl its solar sail."
On Dec. 6,, 2010, NASA triggered the planned ejection of NanoSail-D from FASTSAT. At that time, the team confirmed that the door successfully opened and data indicated a successful ejection. Upon further analysis, no evidence of NanoSail-D was identified in low-Earth orbit, leading the team to believe NanoSail-D remained inside FASTSAT.
The FASTSAT mission has continued to operate as planned with the five other scientific experiments operating nominally.
"We knew that the door opened and it was possible that NanoSail-D could eject on its own," said Mark Boudreaux, FASTSAT project manager at the Marshall Center. "What a pleasant surprise this morning when our flight operations team confirmed that NanoSail-D is now a free flyer." If the deployment is successful, NanoSail-D will stay in low-Earth orbit between 70 and 120 days, depending on atmospheric conditions. NanoSail-D is designed to demonstrate deployment of a compact solar sail boom system that could lead to further development of this alternative solar sail propulsion technology and FASTSAT's ability to eject a nano-satellite from a micro-satellite - while avoiding re-contact with the FASTSAT satellite bus.
Follow the NanoSail-D mission operation on Twitter at: http://twitter.com/nanosaild
For additional information on the timeline of the NanoSail-D deployment visit: http://www.nasa.gov/pdf/501204main_NSD2_timeline_sequence.pdf
To learn more about FASTSAT and the NanoSail-D missions visit: http://www.nasa.gov/mission_pages/smallsats
-end-
News release http://www.nasa.gov/centers/marshall/news/news/releases/2011/11-009.html
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