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ISS during Day

ISS_HUNTER – July 23, 2004 – 18:11

Is it possible to see ISS during the day? I have a telescope with tracking software and I have used it to see ISS at night many times. My question is can I view ISS during the day and is there a site that will give me the information about daytime passes. I am assuming that ISS must be making daytime passes as well !!!

Observing ISS
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Since this thread was

G7MIZ – May 7, 2007 – 08:37

Since this thread was started three years ago , the station has grown in size somewhat.
Although its still not a daytime "naked eye" object , it "is" visible using a telescope mounted camera.

The most difficult part of observing ISS in daylight is to determine excatly where , to a few arc seconds , it will appear bearing in mind that it has to
stand out against the background noise.

Over the last week I have made four attempts to capture images of the station during the brightest part of the day and on three
occassions I was successful.

You can see a couple of the videos at

http://mysite.wanadoo-members.co.uk/satcom_transits/March2005.html

( May 2 and May 3 2007 ) with accompanying data.

John

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iz6byy – July 23, 2004 – 19:40

Hello Hunter,

about daytime visibility that's probably a good question for John Locker (http://www.satcom.freeserve.co.uk).
About daytime passes I can tell you that ISS passes happen about one hour earlier each day. That means that if you just wait long enought you can find a pass at any moment of the day.

Regards

Alain

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ISS visible!

pd0rkc – July 23, 2004 – 23:10

Hello,

I saw this evening the ISS visible with eye at
south direction.
I gues 1 or 2 hours after sunset (at your QTH) is the
best for sun reflection on the ISS.
I have nova trackings software wich tells me
when it visible is.

73's Cor PD0RKC

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VK3UKF – July 24, 2004 – 18:33

Gday Cor, I went and had a sticky beak at your website, and left a message on your guestbook, I think that you would be able to see the ISS during the day as long as you knew where to look, I have viewed Venus and Jupiter during the day with a 4.5 inch reflector on an equatorial mount. If the ISS was passing close to the sun while making its pass, you would have more difficulty seeing it than if the sun was on the opposite side of your sky from the ISS, look at a light bulb and then hold something just to one side of it and see how much is lit up and how much is in shadow, then move that object to the side a bit and more of its illuminated bits will be visible to you.
Kevin VK3UKF

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ISS daytime pass

NGCHunter – August 4, 2004 – 13:38

One unique possibility for observing daytime passes is to look for passes that will transit across the sun from your location. All you need to do then is watch the sun at the right time with the solar filter of your choice (I've never seen it done in H-Alpha but I bet that make an impressive photograph). Such passes are of course rare and very brief, but well worth the patience and effort. A great example is a photograph of the station transiting the sun alongside Venus which was taken with a webcam http://atm.zaciatok.sk/atm/atm.nsf/0/F377100B74598F1BC1256EAE00285667?OpenDocument

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