Author Topic: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread  (Read 66712 times)

Offline nomadd22

  • Full Member
  • *
  • Posts: 170
  • Liked: 2
  • Likes Given: 0
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #120 on: 03/03/2009 06:57 pm »
 I was never a Gore defender, but I always thought Triana was a great idea. The real time image of the planet from a distance might cause the most profound change in perspective since the Apollo 8 photo.

Offline Patchouli

  • Senior Member
  • *****
  • Posts: 4490
  • Liked: 254
  • Likes Given: 457
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #121 on: 03/03/2009 07:27 pm »
Since the F9 US would have to be used in an expendable manner to reach the solar Lagrange-1 point and F9's escape payload is a lot larger then 800Kg I wonder if a second payload can be carried with Triana?
Might as will get full use out of your $57.75M.
Unless you make it ride the first F9 then Spacex might launch it for free same goes with OCS's Taurus II.
« Last Edit: 03/03/2009 07:29 pm by Patchouli »

Offline Jim

  • Night Gator
  • Senior Member
  • *****
  • Posts: 37641
  • Cape Canaveral Spaceport
  • Liked: 21720
  • Likes Given: 429
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #122 on: 03/03/2009 07:33 pm »
.
Unless you make it ride the first F9 then Spacex might launch it for free same goes with OCS's Taurus II.

NASA can't do that.  NASA can't even use a vehicle until it has a first flight

Offline nooneofconsequence

  • Full Member
  • ****
  • Posts: 1391
  • no one is playing fair ...
  • Liked: 0
  • Likes Given: 0
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #123 on: 03/03/2009 08:08 pm »
I was never a Gore defender, but I always thought Triana was a great idea. The real time image of the planet from a distance might cause the most profound change in perspective since the Apollo 8 photo.
We are, as a species, a rather *conceited* monkey after all.

Hard to believe that we need to constantly look at ourselves in the cosmic mirror, in order to come to terms with what we do to ourselves continually.
"Wise men talk because they have something to say; fools, because they have to say something" - Plato

Offline rdale

  • Assistant to the Chief Meteorologist
  • Senior Member
  • *****
  • Posts: 10393
  • Lansing MI
  • Liked: 1422
  • Likes Given: 173
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #124 on: 03/03/2009 08:20 pm »
The real time image of the planet from a distance might cause the most profound change in perspective since the Apollo 8 photo.

We already have updated many times per day (and free.)

http://goes.gsfc.nasa.gov/goescolor/goeseast/overview2/color_lrg/latestfull.jpg

Online eeergo

Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #125 on: 03/05/2009 05:17 pm »
Thanks for that link Robert, I always forget how to get to that page :)

Is the terrain/ocean a true image or just superimposed for reference?
-DaviD-

Offline Danderman

  • Extreme Veteran
  • Senior Member
  • *****
  • Posts: 10294
  • Liked: 703
  • Likes Given: 727
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #126 on: 10/16/2009 02:44 pm »
http://www.spaceflightnow.com/news/n0910/15dscovr/index.html

Still playing with Triana. IMHO, this is a great payload for Falcon 9, if an upper stage is made available.

Offline Jim

  • Night Gator
  • Senior Member
  • *****
  • Posts: 37641
  • Cape Canaveral Spaceport
  • Liked: 21720
  • Likes Given: 429
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #127 on: 10/16/2009 03:12 pm »
http://www.spaceflightnow.com/news/n0910/15dscovr/index.html

Still playing with Triana. IMHO, this is a great payload for Falcon 9, if an upper stage is made available.


Upperstage is not needed, F9 can do GTO, it is not just for LEO

Online ugordan

  • Senior Member
  • *****
  • Posts: 8521
    • My mainly Cassini image gallery
  • Liked: 3550
  • Likes Given: 762
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #128 on: 10/16/2009 03:34 pm »
IMHO, this is a great payload for Falcon 9, if an upper stage is made available.

Why do you keep insisting on another stage for F9 when it was already pointed out after your first post that no additional stages would be necessary? F9 2nd stage is the upper stage and this is a small satellite. Not much launch firepower is needed. It was pointed out here not even Delta II would need a 3rd stage.

Offline kevin-rf

  • Elite Veteran
  • Senior Member
  • *****
  • Posts: 8823
  • Overlooking the path Mary's little Lamb took..
  • Liked: 1318
  • Likes Given: 306
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #129 on: 10/16/2009 04:55 pm »

Also a great payload for those unsold Delta II's. And Delta II has an excellent track record.
If you're happy and you know it,
It's your med's!

Offline rocketnerd

  • Member
  • Posts: 7
  • Liked: 0
  • Likes Given: 0
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #130 on: 10/20/2009 04:30 pm »

Also a great payload for those unsold Delta II's. And Delta II has an excellent track record.
How many Delta IIs are left unsold?

This is what I've seen in terms of the remaining missions:

LV         Mission        Customer     Site           Date
7320         WISE        NASA JPL     VAFB   Dec-09
7420-10   COSMO-4  Italian Gov't     VAFB   Feb-10
7320         Aquarius    NASA Goddard  VAFB   Sep-10
7920         NPP-Bridge NPOESS     VAFB   Jan-11
7920H      Grail        NASA JPL     CCAFS   Sep-11

Offline edkyle99

  • Expert
  • Senior Member
  • *****
  • Posts: 15461
    • Space Launch Report
  • Liked: 8667
  • Likes Given: 1369
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #131 on: 10/20/2009 05:23 pm »

Also a great payload for those unsold Delta II's. And Delta II has an excellent track record.
How many Delta IIs are left unsold?

This is what I've seen in terms of the remaining missions:

LV         Mission        Customer     Site           Date
7320         WISE        NASA JPL     VAFB   Dec-09
7420-10   COSMO-4  Italian Gov't     VAFB   Feb-10
7320         Aquarius    NASA Goddard  VAFB   Sep-10
7920         NPP-Bridge NPOESS     VAFB   Jan-11
7920H      Grail        NASA JPL     CCAFS   Sep-11


In addition to the five planned Delta 2 launches, hardware is said to exist that could allow five more Delta 2 "Heavies" to be assembled.  The rockets have not been built, but important components like engines are apparently available.  This launch would also need an upper stage, like the Star 48B used by Delta 2 until earlier this year, but I'm not sure if any Star 48B motors remain.

BTW, a Taurus II with a Star 48 upper stage motor might also be able to launch this thing.

 - Ed Kyle
« Last Edit: 10/20/2009 05:26 pm by edkyle99 »

Offline Analyst

  • Senior Member
  • *****
  • Posts: 3337
  • Liked: 4
  • Likes Given: 20
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #132 on: 10/21/2009 06:44 am »
No need for an upper stage. This satellite is ~ 700kg, way below Spitzer, which went all the way on the Delta second stage. Delta 7920 should be enough.

Analyst

Online ugordan

  • Senior Member
  • *****
  • Posts: 8521
    • My mainly Cassini image gallery
  • Liked: 3550
  • Likes Given: 762
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #133 on: 10/21/2009 07:33 am »
No need for an upper stage.

Perhaps not from a performance standpoint, but what from the flight profile standpoint? You can't do a parking orbit insertion first with a solid stage as there's no restart capability.

A direct insertion could be too performance expensive however.

BTW, I'm talking about Taurus II only.
« Last Edit: 10/21/2009 07:34 am by ugordan »

Offline Analyst

  • Senior Member
  • *****
  • Posts: 3337
  • Liked: 4
  • Likes Given: 20
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #134 on: 10/21/2009 09:56 am »
I am talking about Delta II only.

Analyst

Offline edkyle99

  • Expert
  • Senior Member
  • *****
  • Posts: 15461
    • Space Launch Report
  • Liked: 8667
  • Likes Given: 1369
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #135 on: 10/21/2009 06:15 pm »
No need for an upper stage. This satellite is ~ 700kg, way below Spitzer, which went all the way on the Delta second stage. Delta 7920 should be enough.

Analyst

O.K.  I didn't realize this was so lightweight.  I remember reading that it got heavier and heavier as the project went along.  Gore's original thought was for a super light space "webcam", essentially, but the platform soon gained more sensors. 

The User's Guide says that Delta 7920H should be able to boost nearly 800 kg to Earth escape velocity, assuming launch into an initial 28.7 deg inclination from the Cape.  Taurus II can lift a bit more than that, but only by using a Star 48 based third stage.  I haven't seen any details of that stage, but I wonder if it might need to have 3-axis cold gas control like the old Burner stages, to allow it to coast and point prior to burning.

 - Ed Kyle
« Last Edit: 10/21/2009 06:17 pm by edkyle99 »

Offline Analyst

  • Senior Member
  • *****
  • Posts: 3337
  • Liked: 4
  • Likes Given: 20
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #136 on: 10/21/2009 08:29 pm »
C3 needed for Lagrange is about zero. Spitzer was a little over 900kg on a 7920H. 700kg and a normal 7920 is enough.

Analyst

Offline edkyle99

  • Expert
  • Senior Member
  • *****
  • Posts: 15461
    • Space Launch Report
  • Liked: 8667
  • Likes Given: 1369
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #137 on: 10/22/2009 06:03 am »
C3 needed for Lagrange is about zero. Spitzer was a little over 900kg on a 7920H. 700kg and a normal 7920 is enough.

Analyst

Roger that, but all of the remaining 7920 vehicles have, as I understand it, been assigned, leaving only the possibility of creating a few final new 7920H vehicles.

 - Ed Kyle

Offline Danderman

  • Extreme Veteran
  • Senior Member
  • *****
  • Posts: 10294
  • Liked: 703
  • Likes Given: 727
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #138 on: 03/09/2011 02:44 pm »
http://www.atlasaerospace.net/eng/newsi-r.htm?id=5355

"The White House is requesting $47 million in fiscal year 2012 to convert a climate satellite grounded by politics into an observatory to monitor space weather and warn of solar storms.

The Obama administration's budget proposal released last Monday would start the development of a new mission for the Deep Space Climate Observatory, or DSCOVR. The satellite was originally built for climate observations from the L1 libration point, a stable gravity-neutral point a million miles away from Earth.

From that location, Earth science sensors on DSCOVR would have a constant view of the day side of the planet.

But the L1 point is more commonly used by solar science missions, and it's an ideal location for a spacecraft to sniff out geomagnetic storms before they reach Earth.

The National Oceanic and Atmospheric Administration would manage the DSCOVR mission as an operational sentinel to give notice of approaching solar storms with potentially calamitous consequences for terrestrial electrical grids, communications, GPS navigation, air travel, satellite operations and human spaceflight.

The FY2012 funds would support the refurbishment of an existing NASA satellite, DSCOVR," said Jane Lubchenco, NOAA's administrator. "This acquisition will allow NOAA to continue to receive vital data to help anticipate and mitigate space weather damage, which could potentially result in costs to the United States of $1 to $2 trillion."

NASA's Advanced Composition Explorer, launched in 1997, is the only spacecraft currently providing short-term warnings of geomagnetic storms. ACE is also stationed at the L1 point, giving forecasters about a 40-minute warning of approaching solar events that could disrupt life and economic activity on Earth.

ACE is operating 12 years beyond its design life and could fail at any time.

The $47.3 million budgeted for the next fiscal year, which begins Oct. 1, would support the refurbishment of the DSCOVR spacecraft, which was put in storage at NASA's Goddard Space Flight Center when the agency suspended work on the project in 2001.
"



Offline GClark

  • Full Member
  • ***
  • Posts: 377
  • Liked: 55
  • Likes Given: 5
Re: Triana (GoreSat) DSCO (DSCOVR) Discussion Thread
« Reply #139 on: 05/06/2011 05:40 am »
Via Clark Lindsay, this tidbit from Businessweek:

"The Air Force plans to bid out several launches, beginning with the National Oceanic and Atmospheric Administration's Deep Space Climate Observatory satellite, scheduled for fiscal 2012, which begins on Oct. 1."

http://www.businessweek.com/magazine/content/11_20/b4228033785287.htm

(Mods:  Apologies if I screwed this up.  I'm not too good at the whole embedding thing.)

Tags:
 

Advertisement NovaTech
Advertisement Northrop Grumman
Advertisement
Advertisement Margaritaville Beach Resort South Padre Island
Advertisement Brady Kenniston
Advertisement NextSpaceflight
Advertisement Nathan Barker Photography
0