Something I’ve learned watching these JPL docs.. you gotta have the brains of an adult but the heart of a 6 year old..gotta be one great place to work.. I’m happy and proud for all of you
It's good with proper nerds in presentations that really knows stuff :-) Interesting with the optical upgrade, just don't point the antenna at the sun! ;-)
Sun pointing is already avoided, even on RF reception. So no worry about it. Mars comms blackout to MSL and Mars 2020(perci) is mainly because of Sun interference.
JPL and DSN still talking to Voyager. But the slide switcher doesn't work :) Also interesting that the speakers and most of the scientific world use the metric system, while JPL does their (otherwise great) documentaries still in imperials.
Voyagers(1/2) is currently as low bandwidth signal with 1.5 days delay, very infrequent, maybe ones a day, for a short timeframe on the DSN. So check for longer time on the tracking data.
Lower noise temperature, higher gain, narrow bandwidth, specific aperture size. Antenna gain, antenna beamwidth. Cosmic interference, path loss, radiative losses, distance losses...it all adds up. Consider a flashlight bulb being viewed from Maine, seen in California. That is the power these antennas can recover and process into usable signal and data recovery.
If you want more Infos on it, i would suggest you check out CCSDS, which is the International specifion Board, which was referenced for the standardised protocols used on DSN and similar Systems.
Can DSN be used to keep a consistent feed going even under constant motion, where multiple sites can be stringed together to collect the same feed or is the current system not able to do this?? The presentation had no info about it.
Do you considered these to be high value targets to the unlawful attack or terrorist attacks ? Do you have a self defense systems installed for each sites? Do you treat it, security-wise , like a military bases ? Can’t imagine the impacts to the spacecrafts out there if one of the site become unserviceable.
Somehow i kept imagining what that timelapse would sound like if Hans Zimmer composed something epic for it. Its a Fine nerdy insider joke as it is and thats how it should be though!
The ionosphere only really reflects stuff in the ~10-~150m range. The Van Allen belt is irrelevant. It's just a pocket of radiation caused by the magnetic field, radiation doesn't effect radio in a vacuum. The magnetic field doesn't effect high frequency, it really only effects very low frequency stuff.
Interruption & delay tolerant huh? I wonder how a deep space spacecraft would text our unmanned probes a bunch of bits of a message & relay a single back if that ever could happen. Eh, maybe after some new antennas than it could request for their DTN DSN like address or designation of system or computer unless it's another probe, than an AI from space could choice not to respond.
@@jonathanschenck8154 if closeby relay over proximity-1(ccsds 211) would be a choice, requires inter-spacecraft packet handlers on the receiver side. The other option is a long distance relay link also with packet handler. Also known as store and forward if a 3rd Probe(spacecraft) is the interconnection point.
If you make 2 mylar discs and silver one of them nd weld the edges together you can inflate the resulting balloon in space and create a dish antenna you can use as a cheap telescope or radio antenna. As it is made of mylar its very cheap to make and you can deploy it easily in space. You might even use it for garbage collection guys!
Mrs Richards: "I paid for a room with a view!" Basil: (pointing to the lovely view) "That is Torquay, Madam." Mrs Richards: "It's not good enough!" Basil: "May I ask what you were expecting to see out of a Torquay hotel bedroom window? Sydney Opera House, perhaps? the Hanging Gardens of Babylon? Herds of wildebeest sweeping majestically past?..." Mrs Richards: "Don't be silly! I expect to be able to see the sea!" Basil: "You can see the sea, it's over there between the land and the sky." Mrs Richards: "I'm not satisfied. But I shall stay. But I expect a reduction." Basil: "Why?! Because Krakatoa's not erupting at the momentt ?
These people don’t come across as stuff shirt braineacts. They sound like someone who’s still pinching themselves because they actually got this job..I’d be proud to tell friends than my grandkids work there
Dengan nama Allah yang Maha Esa, Tunggal; binasakanlah setiap musuh Allah wahai Qur'an. Wahai Tuhan Maha Kuasa binasakanlah dimana pun setiap mereka berada, "Kun Faya Kun". Dengan izin Allah maka terjadilah, Amin.
Shame there is a lot of misinformation in this video, I’m not going to pick on the old bloke as I have respect, but there are a lot of things he just read off paper and just repeated what someone has told him!! I know this because we were all thought the same thing, but true experience in the field will prove a lot of these myths wrong!! It’s a shame Sorry but it’s hard to listen to lies!!
I think that the episode when the camp chief Мюллер offers Sokolov to drink the victory of the Wehrmacht is most expressive. This film is being shown all over the world.... Is this a Drug or a Friend ? A fine friend you are! A friend in need is a friend indeed.
*Lost the funding. The Saturn V cost 1.4 billion inflation adjusted dollars per launch. And that's not even including the ground support equipment and development costs. At least try and figure out what you're arguing against. You look like a fool when you say stuff that clearly demonstrates such a lack of knowledge.
