Re: Io-A May 1, 2025 Dark Sky Observatory
Hi Peter,
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Congratulations on getting your dual dipole up and running.? Jupiter-Io emissions should always look brighter than the background, never darker.? So, I don't think what you detected is indeed Jupiter.
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What it does look like is that you have a serious case of RFI, but the good news is that when it turns off (21:09:50), it appears that you have quite a good relatively low RFI background.? If your antenna is near your house, the RFI probably comes from some electrical or electronics device that turns on and off automatically, say a heat pump or air conditioner or even your refrigerator.? If you can manage, turn every thing off, check your Radio Jove output, and then turn things back on one by one to try to determine which device is producing the noise.? Sometimes it is surprising.? I found that a small LED bedside lamp was causing lots of RFI for my home RadioJove setup.? Sometimes RFI comes from something your neighbor is running, and then you don't have so much control.?
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The second spectrogram likewise shows RFI, this time one that turns on and off over a time frame of a few seconds.? That might be a garage door opener, for instance.? At our site at the Dark Sky Observatory, we have quite a low RFI background which helps to explain our good results.? We do, however, have a short burst of RFI when the observatory dome opens (and closes).? It looks a lot like your second spectrogram, although not nearly as pronounced.
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I should also mention that Jupiter-Io is becoming progressively more difficult to observe with our setups as Jupiter moves into the daytime sky.??
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Hopefully someone with more experience than me will chime in with some better ideas.
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Best wishes,? Richard
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Re: COPIA LIMPIA DE DIBUJO DE ANTENA DE ALTA GANANCIA EA4AND.
Estimado Claudio, saludos fraternos desde Uruguay. Pregunta: si el cable de cobre est¨¢ protegido por barniz como es com¨²n en mi pa¨ªs, afecta en algo la recepci¨®n ? Gracias.
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Jim I agree the brain and eye sight is amazing.
That is reassuring, Larry.? Fascinating how the brain processes visual information.? My guess is that the brain is looking for a boundary and keeps failing to predict where it is.
JS
Jim Sky, I can?see some?movement also?Jim. I think it must be our pupils?are constricting from the bright light area msking the illusion of movement?
Congratulations?Duane.? A little off subject, but when I stare at the big solar burst,? I get an optical illusion where it looks like the light area is continually shrinking.? Does anyone else see that or should I get my meds checked?
Jim?
Observations from Grafton, WV.
Caught two solar and one that looks like Jupiter? What do y'all think of
the Jupiter one?
Thanks,
~Duane
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Re: Io-A May 1, 2025 Dark Sky Observatory
Hello Everyone, A little help please.? Still a newbie.? My system is working, I have been getting solar flares, but still trying to get some?good Jupiter readings.? I monitored Io-A today and looking over what Richard found the best I?have is this match with his 21:09 readings (see attached).? Mine are dark spikes however.? Thoughts?? And if it's not - what am I missing?? Also attached a reading at 20:22:14 which is different, but haven't encountered this before.
Setup is a 10 foot dual dipole.? No phasing.? Graph is attached Appreciate it. Thanks- Peter
We saw a lot of Io-A this afternoon, but much of it was very faint.? I have posted the best bits from the RCP channel.
?
Richard
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That is reassuring, Larry.? Fascinating how the brain processes visual information.? My guess is that the brain is looking for a boundary and keeps failing to predict where it is.
JS
Jim Sky, I can?see some?movement also?Jim. I think it must be our pupils?are constricting from the bright light area msking the illusion of movement?
Congratulations?Duane.? A little off subject, but when I stare at the big solar burst,? I get an optical illusion where it looks like the light area is continually shrinking.? Does anyone else see that or should I get my meds checked?
Jim?
Observations from Grafton, WV.
Caught two solar and one that looks like Jupiter? What do y'all think of
the Jupiter one?
Thanks,
~Duane
|
Jim Sky, I can?see some?movement also?Jim. I think it must be our pupils?are constricting from the bright light area msking the illusion of movement?
Congratulations?Duane.? A little off subject, but when I stare at the big solar burst,? I get an optical illusion where it looks like the light area is continually shrinking.? Does anyone else see that or should I get my meds checked?
Jim?
Observations from Grafton, WV.
Caught two solar and one that looks like Jupiter? What do y'all think of
the Jupiter one?
Thanks,
~Duane
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Re: Welcome to Radio JOVE 2.0
Leonardo, You can download the suggested Radio. JOVE antenna construction manual at the ?link below. We sell a kit of parts. Or you can buy the materials?at your location.?
I suggest you study the Radio JOVE web site at this link.?
Feel free to ask any questions here.? Thanks,
On Thu, May 1, 2025 at 10:58?PM Leonardo UY via <legonciencia= [email protected]> wrote: Buenas tarde, noche o d¨ªa. Mando un gran saludo fraternal desde Uruguay. Para m¨ª es un verdadero placer y honor, poder comenzar a formar parte de ¨¦sta gran comunidad y hacer ciencia ciudadana. Quisiera asesorarme para la construcci¨®n de una antena dipolo doble, para las emisiones no solo de J¨²piter y Solares, sino tambi¨¦n gal¨¢cticas. Gracias
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Congratulations?Duane.? A little off subject, but when I stare at the big solar burst,? I get an optical illusion where it looks like the light area is continually shrinking.? Does anyone else see that or should I get my meds checked?
Jim?
Observations from Grafton, WV.
Caught two solar and one that looks like Jupiter? What do y'all think of
the Jupiter one?
Thanks,
~Duane
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Re: Io-A May 1, 2025 Dark Sky Observatory
Great spectrograms as always, Richard.
Just imagine what you could to with an 8-element array. ;)
--
Dave
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On 5/1/25 22:53, Richard Gray via groups.io wrote: We saw a lot of Io-A this afternoon, but much of it was very faint. I have
posted the best bits from the RCP channel.
Richard
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Re: Welcome to Radio JOVE 2.0
Buenas tarde, noche o d¨ªa. Mando un gran saludo fraternal desde Uruguay. Para m¨ª es un verdadero placer y honor, poder comenzar a formar parte de ¨¦sta gran comunidad y hacer ciencia ciudadana. Quisiera asesorarme para la construcci¨®n de una antena dipolo doble, para las emisiones no solo de J¨²piter y Solares, sino tambi¨¦n gal¨¢cticas. Gracias
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Io-A May 1, 2025 Dark Sky Observatory
We saw a lot of Io-A this afternoon, but much of it was very faint.? I have posted the best bits from the RCP channel.
?
Richard
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Re: Heads up Io-A May 01 2025
Thanks for the heads-up. Unfortunately thunderstorms are predicted here.
On Thursday, May 1, 2025, 11:31 AM, Thomas Ashcraft <ashcraft@...> wrote: Heads up for center pass Io-A May 01 2025 around 20 UT and 21 UT. Check
your RJPro for your locations and alignment.? Tom in New Mexico
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Heads up Io-A May 01 2025
Heads up for center pass Io-A May 01 2025 around 20 UT and 21 UT. Check
your RJPro for your locations and alignment. Tom in New Mexico
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Re: Io-A/non-Io-A April 29, 2025 Dark Sky Observatory
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Thanks to Tom for the head's up.? We picked up some Jupiter-Io emissions today, right on the border between Io-A and non-Io-A.? I think it would have been a nice display if viewed through the nighttime ionosphere.? See attached.? The first shows the full "storm", the others show the details.
?
Richard
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Duane: ? ? ?I am seeing something similar now. Do not think what I am seeing is Jupiter. Maybe others will have input?
On Wednesday, April 30, 2025, 8:42 PM, Duane via groups.io <duane919@...> wrote: Observations from Grafton, WV.
Caught two solar and one that looks like Jupiter? What do y'all think of
the Jupiter one?
Thanks,
~Duane
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Observations from Grafton, WV.
Caught two solar and one that looks like Jupiter? What do y'all think of the Jupiter one?
Thanks,
~Duane
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Solar 04/30/2025 Easley, South Carolina
Good evening: ? ? ?Solar from today.
John
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Adding to Richard's great spectrograms, here's some non-Io-A
from the 29th.
--
Dave
 ???? 
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Io-A/non-Io-A April 29, 2025 Dark Sky Observatory
Thanks to Tom for the head's up.? We picked up some Jupiter-Io emissions today, right on the border between Io-A and non-Io-A.? I think it would have been a nice display if viewed through the nighttime ionosphere.? See attached.? The first shows the full "storm", the others show the details.
?
Richard
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Re: Solar 04/29/2025 Easley, South Carolina
Salvador: ? ? ?Indeed it was weak, but not as much as last night. Thanks for sharing.
On Tuesday, April 29, 2025, 8:20 PM, salvador aguirre via groups.io <drsaguirre@...> wrote: Hi John
?
Here same event, very weak
?
Salvador
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Leonardo UY
Larry Dodd
Dave Typinski
