ProjectSpace Transportation System 2016

gattispilot

Thanks. So for STS 75. I can get the TLE file and load that using the scn editor and then pick the time?

Gargantua2024

The Desktop Orbinaut
Yep...the time you used will become the Epoch parameter

gattispilot

Thanks
We get this for STS 75

MET time

TSS!R deployed

Deployment info
.

For deployment the pitch is -30 and alt 296.32 KM.. Cargo bay away from earth
Not sure about the direction to the sun?
The TSS1R in real life moved. I just have it attached. I suppose I could make it rotate?

gattispilot

STS46 i loaded the TLE and set the date 1 day into the flight 181km

Not sure how to get the different alt. This should be the orbit to launch Eureca.

Gargantua2024

The Desktop Orbinaut
Not sure how to get the different alt. This should be the orbit to launch Eureca.
The altitude depends on the semi-major axis that is computed from the TLE data you based. Here's the formula to get the SMA directly from the TLE

Where:
μ = Gravitational constant of Earth
n = Mean motion (this is the number from the right-most corner in the second row)

Once the SMA is determined, that automatically adjusts the orbital altitude values into Orbiter

gattispilot

Thanks.

grav contant= 9.7
n=15.46403423

Then take that value and load into the scn editor?
 STS-46 1 22064U 92 49 A 92215.26859953 .00013412 00000-0 25599-3 0 45 2 22064 28.4698 338.7713 0008891 295.2501 190.9110 [B]15.46403423[/B] 20 1 22064U 92 49 A 92215.64583333 .00013459 00000-0 25599-3 0 55 2 22064 28.4712 336.1282 0007242 311.3562 119.2459 15.46519912 320 

Attachments

• sts-46.txt
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Gargantua2024

The Desktop Orbinaut
If you mean take the value of the calculated Semi-major axis out of the mean motion ( n ), then yes take it and load it onto scn editor. Btw the semi-major axis from the calculation is measured in meters

Also:
μ = 3.986004418 x 10¹⁴

gattispilot

I found I could just change the SMA in the scn to get close to the orbit alt.

This is about 8 hrs into flight.
DAy 1 the Eureca was launched.
Day 3 the TSS was launched

gattispilot

Watching video of the Eureca launch. It looks like the shuttle bay is open towards Earth. Same for TSS

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gattispilot

We get this:

Eureca

TSS

In real life the elbow camera on the rms is gold

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gattispilot

Confused. I have the guidance file set to this:
-30.000 =orbit(425,437,28.45,-1)
But this is what I get

This is from 2010

I like the shuttle orientation. But the orbit seem low and the date is wrong.
from the press kit the orbit should be.
Orbit insertion (230 x 230 n.m.) 425.96km

Gargantua2024

The Desktop Orbinaut
The shuttle is too heavy to launch itself in a perfectly circular orbit about 400 km in altitude. The initial flight profile of every shuttle launch has its perigee somewhere between 90-110 km to allow the external tank fall into the Pacific or Indian Oceans, and the apogee is always somewhere between 220-250 km depending on the mission.

Therefore, the circularization and raising of the shuttle's orbit is always achieved manually through 1 or 2 OMS burns

gattispilot

The shuttle is too heavy to launch itself in a perfectly circular orbit about 400 km in altitude. The initial flight profile of every shuttle launch has its perigee somewhere between 90-110 km to allow the external tank fall into the Pacific or Indian Oceans, and the apogee is always somewhere between 220-250 km depending on the mission.

Therefore, the circularization and raising of the shuttle's orbit is always achieved manually through 1 or 2 OMS burns
Thanks. So what should I set the guidance for?

Gargantua2024

The Desktop Orbinaut
Thanks. So what should I set the guidance for?
Before STS-38:
-30.000 =orbit(104,228,inclination,-1)

STS-38 onwards:
-30.000 =orbit(104,apogee,inclination,-1)

STS-87 onwards:
-30.000 =orbit(104,apogee,inclination,-1) 360=inverse()

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gattispilot

Thanks.
So for STS 46
-30.000 =orbit(104,apogee,inclination,-1) the apogee is 425

gattispilot

I made a new ET. It seems at least2 versions of the LWT. Black nose cone and orange

On the orbit I launched and advanced time to day 2 and set the orbit angle and ALt.

gattispilot

sTS 75

I need to make another Columbia. It seems STS 61c, 28,32,35,40 had cross hairs on the nose cone (SEADS Shuttle Entry Air data System)