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Launch successful: https://www.youtube.com/watch?v=F7Kr3664hJs
CHOMPTT, our satellite, launched on December 16th with the Rocket Lab Electron vehicle from their New Zealand launch facility.

Precision Space Systems Laboratory

We develop instruments and measurement techniques for gravitational science missions and future satellite navigation systems. On the technological side, our primary focus is on drag-free platforms, precision accelerometers and gyroscopes, and precision timing instruments for spacecraft. In the area of space mission design, our goal is to reduce cost and increase robustness through the use of small satellites and disaggregated architectures.

NASA's ELaNa-19 Mission
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RESEARCH

PSSL is involved in a number of space missions

RESEARCH

CHOMPTT

CubeSat Handling Of Multisystem Precision Time Transfer

CHOMPTT

CHOMPTT Schedule

Date Time Location Event
2018-12-13 04:00 am UTC Rocket Lab Launch Complex 1, New Zeeland 4 hour launch window (daily until Dec 21)

Where are we?

The engineers and physicists of PSSL are part of the Department of Mechanical & Aerospace Engineering (University of Florida) located in Gainesville FL, USA.

Gainesville, Florida
USA

LISA

LISA is a giant gravitational wave observatory in space. Learn more on the LISA Consortium website.

CubeSats

CubeSats are small and cost efficient ways to develop new technology.

Realtime CHOMPTT Position Tracking

NORAD ID: 43855

https://www.n2yo.com/?s=43855&live=1

Two-line element set (TLE) for orbit calculation:

43855, 2018-104G (CHOMPTT) 1 43855U 18104G 18351.22186186 .00000041 00000-0 00000+0 0 9995 2 43855 85.0367 177.6858 0015814 270.2170 89.7417 15.22034312 117

Decode Beacon Data

You can upload CHOMPTT and OPTI telemetry to help us keep track of our Satellite. Just copy and paste the AX.25 UI payload below.

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Beacon
CHOMPTT and OPTI beacons (multiple allowed) – example:
CQ,TELEM:CHOMPTT<~oamb"a'&Ne5=bkW!!!!$!!!!!!+#_4!aGe4!aPk1!abq3!*]G.!+#Xh"&o7=!/^aV!<)r4!!!"u!?V:A5WH^_LoePqJ@*5~>
CQ,TELEM:OPTI<~\HK'dZ@Ul'8HNsaC^Cr/8eQ5s\-XF2<kX3r#64~>
CQ,TELEM:CHOMPTT<~p(5u_a'&Q*5"GbV!!!!$!!!!!!+,e5!aYq4!a>_1!aYk3!*fM/!*oRe"'#==!0R<^!!*(k!!!"R!?;(>!&DLnTWQ05+OJ%~>
CQ,TELEM:OPTI<~\HJLTVLd<h8HO$cD$_&08eQ5s\-XF2pA>0$#64~>
 

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CHOMPTT Telemetry (spacecraft)

OPTI Telemetry (experiment)

CubeSat Handling of Multisystem Precision Time Transfer

Decode CHOMPTT Beacon

CHOMPTT is emitting StenSat packets, an AX.25 UI frame sent using AFSK1200 modulation. You can help us keep track of CHOMPTT's status by uploading these packets. Listen for the beacon at a carrier frequency of 437.56 MHZ with 1200 baud AFSK modulation. There are "Bus packets" (CHOMPTT) and "Opti packets" (OPTI). Since StenSat cannot send binary data, all telemetry is encoded in ASCII85.

You need to decode the ASCII85 payload to binary (HEX) and follow this guide to read out the actual telemetry data. Our tool does all of this for you.

Idle timer:

Latest status: ( UTC)

CHOMPTT:
OPTI:

Uploaded:

The CubeSat Handling of Multisystem Precision Time Transfer (CHOMPTT) mission will demonstrate new technology for navigation, communications and networking in space. This MAE-led mission is a collaboration between the University of Florida and the NASA Ames Research Center. Principal Investigator for the CHOMPTT mission, MAE Prof John Conklin and his team of graduate and undergraduate students in the Precision Space Systems Lab designed, built and tested the mission’s precision timing payload. The UF payload was integrated with a NASA Ames Research Center spacecraft bus to form a 3U (3 unit) CubeSat measuring 10 cm x 10 cm x 34 cm. Launch of the CHOMPTT satellite was on December 16th, 2018 on the Rocket Lab Electron vehicle from their New Zealand launch facility.

You can read more about CHOMPTT on the NASA website: https://www.nasa.gov/image-feature/elana-19-chomptt

CHOMPTT prepared to be encapsulated inside the Rocket Lab Electron rocket - credit: Rocket Lab

CHOMPTT uses a satellite laser ranging facility located at the Kennedy Space Center to transmit 2.5 nanosecond infrared laser pulses to the CHOMPTT spacecraft in low Earth orbit. These pulses are timed with an atomic clock on the ground and are detected by photodetector on CHOMPTT. An event timer records the arrival time with respect to one of the two on-board chip-scale atomic clocks with an accuracy of 100 picoseconds (equivalent to a navigation accuracy of 3 cm). At the same time, a retroreflector returns the transmitted beam back to the ground. By comparing the transmitted and received times on the ground and the arrival time of the pulses at the CubeSat, the time difference between the ground and space clocks can be measured. This compact, power efficient and secure synchronization technology will be useful for future space navigation, communications, networking, and distributed aperture telescopes.

https://twitter.com/precisionspace

Former members

This is just a test
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