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Iridium
I've started looking out for Iridium flares.
I've noticed two things. They don't always flare at the apponted time. Also their flares appear to be restricted to a certain part of the sky. Namely in the south east at my location which is Adelaide, South Australia. Minge |
#2
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Iridium
"Daniel Minge" ha scritto nel messaggio ... I've started looking out for Iridium flares. I've noticed two things. They don't always flare at the apponted time. Also their flares appear to be restricted to a certain part of the sky. Namely in the south east at my location which is Adelaide, South Australia. Minge True. I always double-check heavens-above.com and callsky.com. Heavens-above seems to be using more restricting conditions, such as sun altitude (at least -10 degrees). I estimate a 20% misses. I noticed that in winter the most frequent flares are SE and NW in summer (Italy). This might be due to sunset/sunrise time variation. Giuseppe |
#3
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Iridium
On Mon, 28 Jun 2010 07:40:53 +0200, "Giuseppe N. Gerbore"
wrote: "Daniel Minge" ha scritto nel messaggio .. . I've started looking out for Iridium flares. I've noticed two things. They don't always flare at the apponted time. Also their flares appear to be restricted to a certain part of the sky. Namely in the south east at my location which is Adelaide, South Australia. Minge True. I always double-check heavens-above.com and callsky.com. Heavens-above seems to be using more restricting conditions, such as sun altitude (at least -10 degrees). I estimate a 20% misses. I noticed that in winter the most frequent flares are SE and NW in summer (Italy). This might be due to sunset/sunrise time variation. Giuseppe I use Orbitron which has a good flares predictor application. I also see flares which are in the Northern sky. Merv |
#4
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Iridium
"Daniel Minge" ha scritto nel messaggio news On Mon, 28 Jun 2010 07:40:53 +0200, "Giuseppe N. Gerbore" wrote: "Daniel Minge" ha scritto nel messaggio . .. I've started looking out for Iridium flares. I've noticed two things. They don't always flare at the apponted time. Also their flares appear to be restricted to a certain part of the sky. Namely in the south east at my location which is Adelaide, South Australia. Minge True. I always double-check heavens-above.com and callsky.com. Heavens-above seems to be using more restricting conditions, such as sun altitude (at least -10 degrees). I estimate a 20% misses. I noticed that in winter the most frequent flares are SE and NW in summer (Italy). This might be due to sunset/sunrise time variation. Giuseppe I use Orbitron which has a good flares predictor application. I also see flares which are in the Northern sky. Merv Hi Daniel Did you try heavensat? (http://www.heavensat.ru/english/). I find it to be the best among free satellite tracking programs. Displays stars and has lots of other goodies. Try it. I also use Orbitron, mainly for downloading new TLEs. For Iridium flares I prefer to rely on heavens-above and callsky, because TLEs do not bring informations useful for flare calculation. At least I believe so; am I wrong? - |
#5
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Iridium
On Mon, 28 Jun 2010 16:39:44 +0200, "Giuseppe N. Gerbore"
wrote: "Daniel Minge" ha scritto nel messaggio news On Mon, 28 Jun 2010 07:40:53 +0200, "Giuseppe N. Gerbore" wrote: "Daniel Minge" ha scritto nel messaggio ... I've started looking out for Iridium flares. I've noticed two things. They don't always flare at the apponted time. Also their flares appear to be restricted to a certain part of the sky. Namely in the south east at my location which is Adelaide, South Australia. Minge True. I always double-check heavens-above.com and callsky.com. Heavens-above seems to be using more restricting conditions, such as sun altitude (at least -10 degrees). I estimate a 20% misses. I noticed that in winter the most frequent flares are SE and NW in summer (Italy). This might be due to sunset/sunrise time variation. Giuseppe I use Orbitron which has a good flares predictor application. I also see flares which are in the Northern sky. Merv Hi Daniel Did you try heavensat? (http://www.heavensat.ru/english/). I find it to be the best among free satellite tracking programs. Displays stars and has lots of other goodies. Try it. I also use Orbitron, mainly for downloading new TLEs. For Iridium flares I prefer to rely on heavens-above and callsky, because TLEs do not bring informations useful for flare calculation. At least I believe so; am I wrong? - I've downloaded and installed heavensat, but it doesn't have a help file. I need to be able to install the satellite elements and most importantly, how to exit the program. :-) I see no mention of callsky in Google, Is it a satellite tracking program ? Minge |
#6
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Iridium
Daniel Minge wrote:
I've downloaded and installed heavensat, but it doesn't have a help file. I need to be able to install the satellite elements and most importantly, how to exit the program. :-) You can exit Heavensat by clicking on "Common" in its toolbar, then clicking "Quit." Or you can just click on the X in the screen's upper-right corner. I put the satellite elements in .txt files, and place them in Heavensat's TLE folder. Then click on "Satellites" in the toolbar, then click on "Satellite bases" and checkmark the file(s) you want to use. (Alternatively, when you're in the main screen you can hit Ctrl-b to get the list of TLE bases.) --Bill Thompson |
#7
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Iridium
" ha scritto nel messaggio ... Daniel Minge wrote: I've downloaded and installed heavensat, but it doesn't have a help file. I need to be able to install the satellite elements and most importantly, how to exit the program. :-) You can exit Heavensat by clicking on "Common" in its toolbar, then clicking "Quit." Or you can just click on the X in the screen's upper-right corner. I put the satellite elements in .txt files, and place them in Heavensat's TLE folder. Then click on "Satellites" in the toolbar, then click on "Satellite bases" and checkmark the file(s) you want to use. (Alternatively, when you're in the main screen you can hit Ctrl-b to get the list of TLE bases.) --Bill Thompson Good morning (or rather good afternoon?) Calsky. ( http://www.calsky.com) is a free site for all astronomers and satellite observers. Register, setup your location and navigate its menus. You'll be delighted. Heavensat has a short help file available, but ... in Russian language! Telescope driving is not active yet. Giuseppe |
#8
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Iridium
On Tue, 29 Jun 2010 01:15:34 -0700 (PDT), "
wrote: Daniel Minge wrote: I've downloaded and installed heavensat, but it doesn't have a help file. I need to be able to install the satellite elements and most importantly, how to exit the program. :-) You can exit Heavensat by clicking on "Common" in its toolbar, then clicking "Quit." Or you can just click on the X in the screen's upper-right corner. I put the satellite elements in .txt files, and place them in Heavensat's TLE folder. Then click on "Satellites" in the toolbar, then click on "Satellite bases" and checkmark the file(s) you want to use. (Alternatively, when you're in the main screen you can hit Ctrl-b to get the list of TLE bases.) --Bill Thompson Thank you very much for that information. A great help ! Minge |
#9
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Iridium
On Tue, 29 Jun 2010 15:02:27 +0200, "Giuseppe N. Gerbore"
wrote: " ha scritto nel messaggio ... Daniel Minge wrote: I've downloaded and installed heavensat, but it doesn't have a help file. I need to be able to install the satellite elements and most importantly, how to exit the program. :-) You can exit Heavensat by clicking on "Common" in its toolbar, then clicking "Quit." Or you can just click on the X in the screen's upper-right corner. I put the satellite elements in .txt files, and place them in Heavensat's TLE folder. Then click on "Satellites" in the toolbar, then click on "Satellite bases" and checkmark the file(s) you want to use. (Alternatively, when you're in the main screen you can hit Ctrl-b to get the list of TLE bases.) --Bill Thompson Good morning (or rather good afternoon?) Calsky. ( http://www.calsky.com) is a free site for all astronomers and satellite observers. Register, setup your location and navigate its menus. You'll be delighted. Heavensat has a short help file available, but ... in Russian language! Telescope driving is not active yet. Giuseppe Thanks for that information, Giuseppe.Calsky is a good sight. I just wish the star maps in the Iridium section were a bit larger, but that's a very minor problem. Merv |
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