Timeline for How well can Voyager 1 separate Earth signals from Solar noise these days?
Current License: CC BY-SA 4.0
29 events
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| May 27, 2023 at 16:03 | comment | added | uhoh | @PM2Ring yes I remember almost starting to learn POVRay (very impressive) but I'm really really slow at learning new languages, even scripting languages, so when I found a Python thing I went for it. Kudos for phone computing! | |
| May 27, 2023 at 11:22 | comment | added | PM 2Ring | My preferred 3D platform is POVRay, I also used its predecessor, DKBTrace. But I haven't used it for a few years. These days, I do almost all my computing on my phone. | |
| May 27, 2023 at 11:18 | comment | added | PM 2Ring | I made that diagram using a script adapted from my scripts here. I guess I could do an anim similarly to what I did for STEREO-B. FWIW, SageMath can do great interactive 3D anims, but 2D anims are a bit fiddly and rather slow to render. | |
| May 27, 2023 at 11:11 | comment | added | uhoh | @PM2Ring Blender is free and open source and not only can you paste python into it, you can run it directly from python without the GUI if you like. | |
| May 27, 2023 at 11:11 | comment | added | uhoh | Blender is free and open source and not only can you paste python into it, you can run it directly from python without the GUI if you like. | |
| May 27, 2023 at 10:25 | comment | added | uhoh | @PM2Ring Cool as usual! Have you thought of animations and videos next? Something like 3D4U's Earth/Moon Lagrange points animation (cf. What do the green lines represent in this Lagrange Point animation?) | |
| May 27, 2023 at 8:04 | comment | added | PM 2Ring | FWIW, here's a diagram, produced using Horizons, showing the current angular separation of the Sun & Earth as seen by Voyager 1. The timestep is 2 days (with numeric labels every 60 days). i.sstatic.net/cTXcr.png | |
| Sep 10, 2022 at 9:51 | history | edited | uhoh | CC BY-SA 4.0 |
fixed a typo, updated links to inline form for easier copy/pasting
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| Jul 25, 2022 at 21:19 | vote | accept | uhoh | ||
| Dec 13, 2021 at 23:35 | answer | added | Ryan C | timeline score: 6 | |
| Apr 9, 2021 at 7:33 | answer | added | Roger Wood | timeline score: 11 | |
| Apr 9, 2021 at 0:02 | history | edited | uhoh | CC BY-SA 4.0 |
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| Jul 13, 2020 at 2:06 | history | edited | uhoh | CC BY-SA 4.0 |
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| Nov 6, 2019 at 4:57 | answer | added | user33827 | timeline score: 13 | |
| May 3, 2019 at 0:50 | history | edited | uhoh | CC BY-SA 4.0 |
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
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| Aug 13, 2016 at 13:35 | answer | added | Boris Deletic | timeline score: 3 | |
| Jul 21, 2016 at 19:05 | comment | added | gosnold | Woops, I forgot path loss in the DSN signal the received signal is P.G.A.4.pi/d^2. Here's a link showing an example of link budget from the DSN: propagation.gatech.edu/ECE6390/project/Fall2010/Projects/group7/… | |
| Jul 21, 2016 at 16:08 | comment | added | gosnold | You need to compare the noise introduced by solar radiation and the level of signal produced by the DSN antenna. Assuming the sun completely fills the main lobe of your antenna, it introduces a noise with mean power k.T.B, with k the boltzman constant, T the temperature of the sun, and B the bandwidth of your receiver. The signal produced by the DSN is P.G.A with P the output power, G the DSN antenna gain and A the area of the spacecraft antenna. So if your are using a small enough bandwidth or large enough antennas, you can overpower the sun. | |
| Jul 21, 2016 at 11:18 | history | edited | uhoh | CC BY-SA 3.0 |
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| Jul 20, 2016 at 12:53 | answer | added | Git | timeline score: 1 | |
| Jul 20, 2016 at 1:46 | comment | added | uhoh | Yay! Screen Shot! Earth is only 0.41 and 0.39 degrees from the sun right now as seen from Voyager 1 and 2. Excellent. Amazing. Thank you! | |
| Jul 20, 2016 at 1:21 | comment | added | Phiteros | @uhoh I'm not sure about every day, but I see one or both of them on there fairly often, labeled as VGR1 and VGR2. Voyager 1 is talking right now. | |
| Jul 20, 2016 at 0:54 | comment | added | uhoh | @Phiteros great! So do both Voyagers show up as targets usually on a daily basis on the DSN Now web page? | |
| Jul 19, 2016 at 19:59 | comment | added | Phiteros | I inquired about this at JPL's Space Flight Operations Facility, and they said that they can, and do, still talk with the Voyager probes, usually on a daily basis, and that they still have clear communication with both. | |
| Jun 4, 2016 at 14:59 | comment | added | uhoh | @AndrewW. I wouldn't want you to leave Voyager 1 on the back burner too long! If you can just add a short answer with some kind of a link. Am I right - about 0.4 degrees max at opposition? Yikes! Is the sun actually very noisy? | |
| Mar 7, 2016 at 18:48 | comment | added | Andrew W. | This has been on the back burner in my mind since you posted. I't starting to bug me so I'll do some research and post an answer when i get some free time. | |
| Mar 3, 2016 at 18:20 | history | tweeted | twitter.com/StackSpaceExp/status/705457846247407617 | ||
| Mar 3, 2016 at 11:28 | history | asked | uhoh | CC BY-SA 3.0 |
