Questions tagged [new-horizons]

New Horizons is NASA's space probe launched in early 2006 towards the dwarf planet Pluto as the first spacecraft to fly by and study this Kuiper Belt Object (KBO) and its moons, Charon, Nix, Hydra, Kerberos, and Styx, in July 2015. Spacecraft's operational constraints permitting, it will be redirected to study another KBO, preferably a white body (icy plutoid) with its own moon(s) that's close on the path of New Horizon's current trajectory.

Filter by
Sorted by
Tagged with
5
votes
1answer
981 views

Error detection and correction techniques on New Horizons data

As New Horizon's signal is so weak, probability exists of errors in detected signal. What error detection and correction codes are used in the signal? Is it known, what is the error rate in received ...
14
votes
2answers
2k views

Why do the pictures returned from the New Horizons flyby of Pluto lack motion blur?

When using a camera and and not being stable in respect to the target, picture smear occurs. Pluto is 2370 km wide and flyby occurred at speeds ~14 km/s and from distance of ~10,000 km. To put in ...
4
votes
2answers
638 views

Why is part of this New Horizon's Charon high resolution image missing?

The New Horizons team released the following photo of Charon today This choice of image seems rather odd to me for a number of reasons. First of all, according to Emily's schedule, there were 3 ...
11
votes
1answer
509 views

How long did New Horizons take to upload all of its data from the Jupiter encounter?

It's a pretty well known fact among the regulars of this site that New Horizons will take up to 18 months to completely upload the data from the Pluto encounter. When it was at Jupiter, it was much ...
35
votes
5answers
12k views

Why is it hard to take a high quality image of far away objects (like Pluto) using a high-tech space telescope?

Why did NASA send a probe so close to Pluto instead of using a high-tech telescope to capture images of its surface? The Icy Mountains of Pluto. Image credit: New Horizons / Johns Hopkins Applied ...
1
vote
1answer
426 views

Will New Horizons, Voyager or any other space craft survive the death of the sun?

After its mission, New Horizons will be destined to travel perpetually forever. I wonder though how far it will be when the sun explodes. Will it be far enough away that when this happens, billions of ...
4
votes
1answer
158 views

Is New Horizons capable of making natural color photos?

As far as I know, LORRI is panchromatic (black-and-white) and Ralph has red, blue and two infrared filters but no green filter. As such, I wonder whether New Horizons is capable of making natural ...
8
votes
1answer
277 views

New Horizons - Orientation in space

How does the New Horizons probe know it's close to Pluto and turn its science instruments towards Pluto and other targets of its observations during the flyby?
5
votes
1answer
666 views

Why didn't New Horizon use Mars as a gravity assist like it did Jupiter?

Part of New Horizon's path took it near Mars. Why didn't they use Mars for a gravity speed boost like they did Jupiter? I'm guessing it had to do with the relatively small size of Mars being unable to ...
11
votes
3answers
3k views

How much faster (or slower) would it be for a new probe to reach Pluto?

New Horizions just reached Pluto after almost a decade in space. That means it was launched with technology that is well over a decade old (when you factor in planning and construction time). If we ...
6
votes
1answer
301 views

When could we see Pluto's Southern hemisphere?

New Horizons just passed by Pluto, but was unable to see the southern hemisphere, as a result of it being in perpetual eclipse. When will the southern half be lit, so that the rest of the planet could ...
0
votes
1answer
565 views

What is the modulation technique and what is the coding technique used to send information from the New Horizons spacecraft?

I would like to know what is the modulation technique used on the New Horizons Spacecraft? Is it BPSK or GMSK? Also what is the coding technique-turbo-codes or LDPC codes? And do you have a link ...
8
votes
2answers
2k views

Why can't New Horizons send data and do observations at the same time?

The Voyager probes have a scan platform, which allowed them to point their cameras independently of the orientation of the spacecraft. New Horizons doesn't have a scan platform, so the entire ...
1
vote
0answers
61 views

Would it have been possible to instead keep New Horizons with Pluto? [duplicate]

I understand that New Horizons has further objectives after Pluto, but they seem to be very iffy, whether they will produce anything valuable. This question is related, but I'm more interested in why....
2
votes
0answers
75 views

Why are space probes / satellites data rates so low? [duplicate]

The New Horizon's data transfer rate is only about 2kbps right now. At its peak the rate was 38kbps. Why is this transfer rate so slow? Is this due to using radio waves, limitations in the data relay, ...
12
votes
2answers
22k views

How are New Horizons images sent back to Earth?

I'd like to understand how does New Horizons space craft send its data back to Earth, billions miles away from it. I read in a Time article: "Also, at the distance of Pluto, we can only send data ...
9
votes
3answers
940 views

Why does New Horizons point at Earth during its flyby

Watching the New Horizons flyby, I notice that the probe stops probing and points back at Earth for about an hour at a time, right around the closest approach. This happens on one occasion 6 hours ...
1
vote
0answers
82 views

How is New Horizons powered? [duplicate]

My understanding is that New Horizons has an RTG on board, which generates electricity for it's systems. How and when was the RTG manufactured, and how does it work? How exactly does New Horizons ...
17
votes
2answers
12k views

What powers New Horizons?

What does New Horizons use to keep itself traveling (so far), while keeping all of its monitoring and communication systems active? I did read that it leveraged force from a gravity sling shot from ...
14
votes
1answer
1k views

Why will there not be any images returned after July 20th until September?

I noticed in the New Horizon's release time schedule by Emily Lakdawalla/ Planetary Society that after July 20th, there won't be any data returns from New Horizons until September. Why is there a 2 ...
30
votes
4answers
4k views

Requirements to orbit Pluto

I have seen this question posed often recently, without a satisfactory answer in my opinion: Why won’t New Horizons orbit Pluto? The answers I read are always along this line: too much fuel too ...
11
votes
1answer
389 views

What causes Pluto's atmosphere to recede/collapse?

An answer to this question sparked my curiosity. Pluto's atmosphere seems to come and go depending on its orbital position and distance from the Sun. If the heat up from coming closer to the Sun ...
8
votes
1answer
553 views

Why does Pluto change color?

This article says [Pluto] is about 20% redder than it used to be. Have there been any further articles/Hypotheses on both the cause of the color, and more importantly, the color change? Or do we ...
16
votes
1answer
6k views

Operating system of New Horizons spacecraft

I've been doing some searching and I can find some technical details about the flight computer of the New Horizons spacecraft. What I've found is: It has a Mongoose-V 32-bit CPU (a radiation hardened ...
5
votes
2answers
354 views

What type of data did New Horizons send to Earth in order to diagnose the switch to Safe Mode issue?

Recently, the New Horizons spacecraft on its way to Pluto suffered a "hard-to-detect timing flaw in the spacecraft command sequence." Does that mean that it was a multi-threading error or something ...
5
votes
1answer
148 views

New Horizon's disabling safe mode near flyby (in 2007)

At the end of the Jupiter flyby, New Horizons entered safe mode. I remember at that time a question being asked "What would happen if this happened during the Pluto flyby", and the answer was that ...
13
votes
1answer
586 views

How long have we known Pluto is red?

Recently the New Horizon's satellite has given us some lovely color images of Pluto. When did we first discover that Pluto is red? Secondly, did we suspect its color was red before we were able to ...
-2
votes
1answer
400 views

About Mars One's journey to Mars

My question is about Mars-one's plan to send people to Mars in 2025. I want to know why it is a one-way trip and not a round-trip. People already landed on Moon in 1969 and successfully came back to ...
4
votes
1answer
749 views

When New Horizons is closest to Pluto, how fast will it be going (km/s)?

I've been googling this question because I haven't seen the answer anywhere, yet I know it must be calculated with a high degree of precision. Anyone know if it will be faster or slower than its 13.8 ...
10
votes
2answers
2k views

What is the relationship between New Horizons launch and Pluto's loss of Planet status?

According to NASA "New Horizons launched on Jan. 19, 2006" according to Wikipedia this is about the same time Pluto started on the path to loss of planet status. Is it just coincidence that both of ...
5
votes
3answers
1k views

How does New Horizons control its attitude?

I used NASA's eyes tool to see what's going at the time of New Horizon's closest approach to Pluto. I realized that in the programmed sequence, New Horizons is rotated on its axis by more than 90° ...
15
votes
1answer
1k views

What is a “Sailboat Island of Stability”?

The New Horizon's team, in response to an announcement of a press conference from the Hubble team, posted some speculations as to what the press conference might be about. On the list includes "Small ...
13
votes
3answers
4k views

Will the Pluto flyby by New Horizons be broadcast online?

Obviously, there is a 4.5 hour time lag so we can't expect live video, but will they have a telecast of some sort showing images as they come in, along with the latest telemetry? Will there be a ...
1
vote
1answer
121 views

Refurbish NewHorizonsBots images

In Twitter the @NewHorizonsBot always announces whenever #NewHorizons releases a new image. For example: #NewHorizons released a new image! ⌚ 14 May 2015, 02:02:44 UTC. 📍 73.1M km from #...
25
votes
3answers
2k views

Why doesn't the New Horizons probe fly any nearer than 10,000 km from Pluto?

New Horizons is intended to pass within 10,000 km of Pluto on its flyby on July 14. This will give a maximum resolution on the surface of 50m per pixel. This seems to me a bit of a waste, when it ...
8
votes
2answers
412 views

Use Pluto's gravitation to reach the next dwarf planet

Why doesn't New Horizons fly by nearer to Pluto so the gravitational pull would slingshot the probe to one of the next dwarf planets in the outer solar system (Eris, Haumea, Makemake,...)? I would ...
11
votes
1answer
1k views

Why isn't Pluto a circle on LORRI images?

A Long Distance Look from LORRI images were published recently. Pluto and Charon look like shrunken ovals here: Why is this? Is it due to Pluto and Charon's phases? Is the distance enough to ...
24
votes
6answers
8k views

Why does data transfer rate decrease with distance

I read that the New Horizon's probe will send data to back to Earth at 3000 bits per second by the time it reaches Pluto. I don't understand why a spacecraft has to have a lower data tranfer rate ...
7
votes
2answers
740 views

Will New Horizons be able to tell if Pluto is from outside the Solar System?

Will the New Horizons space probe be able to discover whether Pluto is an extra solar body captured by our sun or not?
16
votes
2answers
793 views

New Horizons - How much time will we get to image the Pluto system?

When New Horizons arrives at Pluto next year, how much time will we get to image and explore (measurements, spectra-analysis) the Pluto system? Any ideas if we will see (or be able to count) Pluto's ...
8
votes
2answers
981 views

Can New Horizons be turned into an orbiter for the Pluto system?

If the New Horizons team doesn't find a KBO target for the probe, can they turn it into an orbiter for the Pluto system? I know entering orbit right now would be impossible, but would it be possible ...
22
votes
2answers
2k views

What's after Pluto for New Horizons?

I have read that the New Horizons probe plans on visiting some other Kuiper-belt objects once it passes Pluto, but not sure which ones. This brings up a few questions: Are there any leading KBO ...
66
votes
2answers
61k views

When will New Horizons overtake Voyager 1 in distance from the Sun?

Basically, what the title asks. To my understanding, New Horizons is currently the fastest spacecraft that's moving away from the Sun, with arguably only Helios-A and Helios-B possibly faster still, ...
11
votes
1answer
596 views

Will Pluto's atmosphere collapse prior to New Horizon's visiting it?

It is thought that Pluto's atmosphere will freeze as it moves further from the Sun. We know that Pluto was it's closest to the Sun in the 1990's. Is it known if the atmosphere will freeze prior to New ...
20
votes
1answer
2k views

At what approximate distance will the New Horizons spacecraft resolve Pluto better than the Hubble Space Telescope?

As of July 2013, the New Horizons Long Range Reconnaissance Imager (LORRI) can resolve Pluto and Charon as separate objects. From what I've read, it will still be some time until the spacecraft is ...

1 2