Author Topic: CubeSat and NanoSat Technology  (Read 73067 times)

Offline TrevorMonty


Offline savuporo

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Orion - the first and only manned not-too-deep-space craft

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #222 on: 08/01/2017 01:00 AM »


https://www.nasa.gov/press-release/nasa-selects-proposals-for-advancing-adaptive-space-robotics-3-d-printing-and-other

A second study involves a new generation of CubeSats that take advantage of in-situ resources -- living off the land -- while exploring space. The proposal combines existing CubeSat technology with 3-D printing technology and an in-situ resource utilization (ISRU) water extraction system. The 3-D printing technology enables development of steam thrusters, as well as tanks that fit within the available space within the CubeSat. The ISRU module captures and extracts water, and takes advantage of the heat generated by the CubeSat electronics system, with supplemental power from solar charged batteries.

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #223 on: 08/02/2017 06:25 AM »
« Last Edit: 08/02/2017 06:26 AM by TrevorMonty »

Online catdlr

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Re: CubeSat and NanoSat Technology
« Reply #224 on: 08/02/2017 04:08 PM »
NASA Set To Launch Shoebox-sized Satellite Studying Earth's Upper Atmosphere

NASA Goddard
Published on Aug 2, 2017

NASA scientists and engineers named their new CubeSat after the mythological Norse god of the dawn. Now, just days from launch, they are confident the shoebox-sized satellite Dellingr will live up to its name and inaugurate a new era for scientists wanting to use small, highly reliable satellites to carry out important, and in some cases, never-before-tried science. Dellingr will study how the ionosphere, a region in Earth’s upper atmosphere, interacts with the Sun. Before launch, Dellingr is required to visit the Magnetic Test Facility at NASA Goddard to test the spacecraft’s magnetometers - key instruments for measuring the direction and strength of the magnetic fields that surround Earth. The spacecraft is scheduled to launch this August aboard a SpaceX Falcon 9 rocket to the International Space Station where it will be deployed later into a low-Earth orbit.

Music credit: ‘Cycle of Life’ by Philippe Lhommet [SACEM] from Killer Tracks

This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: http://svs.gsfc.nasa.gov/12602

Credit: NASA's Goddard Space Flight Center/Joy Ng

https://www.youtube.com/watch?v=v2cOGbpJV4Q?t=001

Tony De La Rosa

Offline TrevorMonty

« Last Edit: 08/04/2017 10:00 AM by TrevorMonty »

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #226 on: 08/09/2017 10:14 AM »

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #227 on: 08/09/2017 10:35 AM »
« Last Edit: 08/09/2017 10:36 AM by TrevorMonty »

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #228 on: 09/03/2017 07:48 AM »
Interplanetary cubesat mission proposals

https://icubesat.org/archive/2017-2/icubesat-program-2017/

Online mtakala24

Re: CubeSat and NanoSat Technology
« Reply #229 on: 09/04/2017 05:22 PM »
Interplanetary cubesat mission proposals

https://icubesat.org/archive/2017-2/icubesat-program-2017/

If you look closely enough, there is a familiar name in there... :)

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #230 on: 10/29/2017 08:27 AM »
Planet are testing new proplusion system on their Doves.

The nano propulsion system is known as Indium Field Emission Electric Propulsion. This propulsion system consists of a 250-gram cylinder of indium, associated heaters, ion generator mechanism, and beam neutralizer mechanism. Thrust is generated by the acceleration of ions via an applied electric field between an emitter crown and extractor electrode. The expected thrust is 350 micro-Newtons (uN), and there is a total of 5000 Newton-second total impulse capability for up to 1415 m/s velocity change for the 5 kg Dove Turbo satellite.

Offline savuporo

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Re: CubeSat and NanoSat Technology
« Reply #231 on: 10/29/2017 05:44 PM »
By the way, Minotaur will be launching another 6 SkySats on October 31st with operational "Green Propulsion" aka ECAPS HPGP or LMP-103s. That is, a fully flight tested substitute for hydrazine monoprop, in commercial use.

Those will join an existing constellation of SkySat-3 through 7, which have accumulated significant on orbit life now.

In December 2016, SkySat-7 experienced a thrusters firing anomaly, which was quickly resolved by a software change.


« Last Edit: 10/29/2017 05:45 PM by savuporo »
Orion - the first and only manned not-too-deep-space craft

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #232 on: 10/30/2017 10:44 PM »
This SpaceNews Article where Arianegroup sounds the alarm bell about the possible Hydrazine ban.
I'm sorry Arianegroup you should just invest some more in thruster development!

The article is contradiction with Bradford ECAPS. And there is also LMP-106, and the USA one. (It's true these have to be pre heated.)
And lets not forget HTP (that was competing with hydrazine form the start).
HTP - hydro carbon could be a replacement for toxic bi-propallent hypergolics. (Or Masten's MXP-351)

This was also a bit stupid in my oppinion: SpaceNews, Arianegroup .. smallsat standardisation....
 ??? The larger segment is already standardized:
Cubesats 0.25-16U    (pocket cubes 1-4 P) [a loaded 12U/16U cubesat deployer ~32.5kg]
Here they have a point: ~30kg (or a 12/16U box); 50kg (or 100lbf/45kg); 75kg ; 100kg (or 90kg/200lbf)
ESPA 15" ring; 180kg (400lbf)
ESPA Grande, 24" ring; 300kg (660lbf)

OneWeb sat's as well as SpaceX sat's will indeed become standard busses.
Let's add this chart I made with a list of small sat buses.
Indeed the NORSAT's were troublesome, but it's strange GLAVCOSMOS/ECM could launch them without trouble.
This post is a bit OT, you may want to move it to more appropriate thread.

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #233 on: 11/06/2017 10:35 PM »
Article about cubesats that don't work and possible common faults.


http://www.thespacereview.com/article/3364/1

Offline TrevorMonty

Re: CubeSat and NanoSat Technology
« Reply #234 on: 11/16/2017 02:08 AM »
Three  cubesat technology demo missions that are on Cygnus now.

Laser coms to earth.
Formation flying.
ISARA
"To the best of his knowledge, ISARA will be the first in-space demonstration of a reflectarray antenna as well as that of an integrated antenna and solar array. "

Not clear but I think array is etch to back of solar array. So back needs to face ground station. At 100Mps it is huge improvement over existing cubesat comms and best of all comes almost mass free with solar arrays.

http://www.parabolicarc.com/2017/11/15/nasa-cubesat-missions-pushing-boundaries-technology/

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