Talk:Optus (satellite)

General
Timezones: would it not make more sense for the section about New Zealand to have times in the NZ local timezone? (Perhaps in addition to the GMT times). BevanFindlay 22:51, 19 July 2006 (UTC)

Suggested cleanup/update: Section on Optus B1 outage in March 2006
The section of the article discussing this outage seems to be a collection of theories based on media reports during the first 18 hours or so of the incident. It gives a blow-by-blow account of the initial reporting of the outage and reported reaction to the outage, rather than a simple considered overview of what happened, in encylopedic style.

Some of the claims in this section run at odds with Optus' formal media release, which claims that "Optus maintained contact with the satellite throughout the outage."

It seems to me that the writing style and size of this section of the article is out of proportion with the incident. I will tag it with a needs-updating cleanup tag as I see this as being the primary problem (that this section was written on-the-fly and never updated with the benefit of hindsight). Rob.au 15:55, 11 October 2006 (UTC)


 * I've gone ahead and performed the cleanup. Much of the information I have removed is already covered elsewhere anyway, either in Wikinews or on the Sky Network Television page, both of which I have linked to.


 * This is also consistant with the result of the merger discussion which suggested that the effects on Sky should be covered in detail on Sky's page (which they are). Rob.au 06:33, 14 October 2006 (UTC)

UHF Transponders on Optus C1
Link to source 5 is no longer valid. [This unsigned comment was left by 210.246.16.136 at 05:45, 22 October 2006 (UTC)]
 * As the link works, I assume this is a reference to an earlier change, since reverted, to the number of UHF transponders. All content on wikipedia must be verifiable and a number of sites including that of the operators Optus  and Defence  show there are 6 UHF transponders.  Can you provide more information and verification for a different number?  Particularly, how would the number change once in orbit? –Rob.au 04:14, 5 November 2006 (UTC)

Purpose of D-series Satellites
Although partly timed by higher than expected demand for services on Optus C1, the initial D-series satellites (D1 and D2) have always been intended to replace the aging B-series satellites (B1 and B3). --Rob.au 11:54, 4 April 2007 (UTC)

A3 Deorbit
A3 has been in service for over 20 years. It is virtually impossible to de-orbit a fully fuelled satellite from GSO, let alone one which has virtually empty tanks, so the claim that A3 has been deorbited is clearly false. It has probably been moved to a graveyard orbit. I have removed the claim, and I will look to see if it has been moved. -- GW_SimulationsUser Page 10:43, 10 April 2008 (UTC)
 * Looking around, I suspect a possible problem here is that it looks like "de-orbit procedure" is a frequently used term actually meaning "moved to graveyard orbit", which might be where the confusion came from, depending on where it came from, since I still can't find a reference. There are references saying a new satellite has moved into the orbital slot B3 was technically parked in however, so it does seem that there is a high probability that the end of its life may have come, one way or the other.  -- Rob.au (talk) 17:48, 10 April 2008 (UTC)
 * Several satellites can share a slot. I can find no references that suggest A3 has been moved out of GSO. I can find sources that it is not currently in use (ie. is not broadcasting anything at the moment), but that is it. -- GW_SimulationsUser Page 20:14, 10 April 2008 (UTC)
 * The tracking sites show it has increased altitude. Heavens Above now has it with a Perigee of 36,136 km and Apogee of 36,209 km .  The n2yo.com tracking site and NASA's JTrack 3D also show it is now between 15&deg;W and 16&deg;W, with JTrack plotting a zig-zag ground track instead of the figure-8 you'd expect. -- Rob.au (talk) 09:12, 11 April 2008 (UTC)
 * The same sources show it continuing to drift westwards in what appears to be a graveyard orbit. It's now about 70&deg;W according to those sources.  I've reinstated and clarified the out of service reference for now.  I guess if these sources show the ground track completes a lap of the earth we can remove the citation needed notation. -- Rob.au (talk) 11:12, 22 April 2008 (UTC)

Launch info for D3 removed
Please explain how it benefits the article to have removed the information regarding the D3 satellite sharing a launcher with JCSAT-12? Having this information in the article is a great way to give readers an intuitive understanding of the sizes of these satellites, i.e. the two together can be lifted by the same type of launch vehicle that lifted TerreStar-1 (the largest commercial commsat ever orbited). (sdsds - talk) 18:31, 3 July 2009 (UTC)


 * I didn't remove all of the launch information, ONLY the fact that the two satellites are launched together (everything else was information already shown and was just being repeated). The fact the two are going together is not at all a reflection on the sizes of the satellites, it is a reflection on the capabilities of the launcher.  This isn't an article on satellites in general, nor is it an article about the launch vehicle, it's an article on the Optus fleet of satellites - the co-passenger is just not notable here.  I note that the article already does not include information on the co-passengers of D1 and D2 either.  It is no more notable now.  I know the Arianespace press release was very excited about the mass of TerreStar-1 and that will probably be notable on other Wikipedia articles.  Respecting WP:N and WP:NPOV is important in maintaining the standards of Wikipedia.


 * Also if you are going to go ahead and revert a contested change, please have the courtesy of leaving in the clean-up work that was done at the same time, reverting that as well was completely unnecessary. -- Rob.au (talk) 14:36, 4 July 2009 (UTC)

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External links modified (January 2018)
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 * Added archive https://web.archive.org/web/20061117163316/http://www.ssloral.com/html/satexp/optusc1.html to http://www.ssloral.com/html/satexp/optusc1.html

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