Vessel Nancy Grace Roman Space Telescope

[MarkWatney2015]

Quick question:
Shouldn't the main mirror be covered during launch, or there's no mechanism for it? I think the "hat" part on the telescope is its mirror cover that is only opened after the telescope reaches Sun-Earth L2. Kinda similar to how Hubble was deployed from the Shuttle in 1990

 

[gattispilot]

NASA Scientific Visualization Studio | Roman Systems Infographic

This infographic shows the two major subsystems that make up NASA’s Nancy Grace Roman Space Telescope. The subsystems are each undergoing testing prior to being joined together this fall. || Roman_Systems_Infographic_V1_Final_print.jpg (1024x576) [160.5 KB] ||...

svs.gsfc.nasa.gov

looks like it does fold?

 

[gattispilot]

NASA Tests Deployment of Roman Space Telescope's 'Visor' - NASA

The "visor" for NASA’s Nancy Grace Roman Space Telescope recently completed several environmental tests simulating the conditions it will experience during

www.nasa.gov

NASA Scientific Visualization Studio | The Roman Space Telescope's Deployable Aperture Cover

Located at NASA’s Goddard Space Flight Center, the Space Environment Simulator is a large, vertical cryopumped test chamber capable of achieving ultra-low pressures and a wide range of thermal conditions. Here engineers are testing the the Nancy Grace Roman Space Telescope's Deployable Aperture...

svs.gsfc.nasa.gov

It looks like a cover is then extended to the hood.

I can just put a cover on it and press a key and cover is gone.

 

[MarkWatney2015]

Huh, neat...I didn't know it was more like a fabric mesh than a solid cap like the Hubble cover

 

[MarkWatney2015]

I have created a simple SCN file depicting NGRST arrived at the Sun-Earth Lagrange (L2) point...which I retrieved and converted directly from JPL-HORIZONS

 

[gattispilot]

On the cover?

Goddard’s Roman Team Successfully Integrates the Deployable Aperture Cover | Goddard Engineering and Technology Directorate

NASA’s Nancy Grace Roman Space Telescope team has successfully integrated the mission’s deployable aperture cover — a visor-like sunshade that will help prevent unwanted light from entering the telescope...

etd.gsfc.nasa.gov

I wonder if the shield around the front is not rigid. but it is all of the fabric?

 

[MarkWatney2015]

Looks like it is not rigid at all...kinda like the sunshield of the JWST

 

[gattispilot]

On the cover. I think we just do this. on launch it will show the covered telescope and press a key and the the unfolded cover is seen

 

[BrianJ]

Just out of curiosity, here's a 3-view comparison of the 300-day trajectory prediction by LagrangeMFD (rotating frame, Earth-Sun fixed) from Gargantua2024's scenario (Horizons data) vs. the halo orbit that LagrangeLaunchMFD will put you in:

Gargantua2024 scenario:


LagrangeLaunchMFD launch solution:



NGRST halo is very flattened, and kind of tilts the other way. Interesting.

Cheers,
BrianJ

 

[gattispilot]

Updated her. press 3 to change the shield from covered to open. In the scn just add Cover 1 to show the folded one

 

[MarkWatney2015]

New images of the NGRST after it just finished construction last November 25th.