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
2
votes
3answers
240 views

Did New Horizons use its smaller medium-gain antenna for most/all downlinking of Pluto and Arrokoth flyby data?

Brian May's New Horizons video (below) was released at about the same time that the New Horizons spacecraft passed 2014 MU69 Arrokoth and includes a lot of technically meaningful graphics. One item ...
3
votes
1answer
270 views

Will the upcoming observations of occultation by Arrokoth (2014 MU69) be of a single object, or two?

According to Phys.org's New Horizons team prepares for stellar occultation ahead of Ultima Thule flyby: "Gathering occultation data is an incredibly difficult task," said New Horizons occultation ...
3
votes
1answer
123 views

Does JPL's Horizons have better MU69 state vectors for the New Horizons flyby somewhere?

Today I downloaded the state vectors for New Horizons and MU69 Arrokoth and subtracted their positions. The two new get closer than about 596,000 kilometers. The New Horizons output header says: <...
15
votes
2answers
2k views

What time will news from New Horizons' Arrokoth (2014 MU69) encounter become available to the public?

This is New Years Day and the big day for New Horizons' encounter with Arrokoth! But it doesn't mean there was nice pictures of MU69 on the big LED displays in Time Square at ...
0
votes
2answers
118 views

How does the orbit of the Voyager and New Horizons probes manage to get into interstellar space?

I understand that every probe launched has been launched into an orbit. The further you want to go into the solar system, the faster it needs to be moving. And everything orbits the sun until it finds ...
1
vote
1answer
120 views

What do all these vectors point to in this New Horizons trajectory/operations simulation?

Sir Brian May's New Horizons music video (below) shows an animation of the spacecraft and its launch vehicle from countdown to MU69 Ultima Thule. Part way through the video at about ...
3
votes
3answers
168 views

Could a spacecraft fly in a direct line from the outer solar system to Earth?

The Johns Hopkins University Applied Physics Laboratory website depicts the New Horizons flight path as almost a straight line after the Jupiter flyby. Could a spacecraft travel from the outer solar ...
7
votes
1answer
253 views

How tall are Pluto's mountains? Are they the tallest ice features in the Solar System?

The Gizmodo article It Looks Like Pluto Has a Liquid Water Ocean shows a large image of pluto with obliquely lit peaks near both the terminator and the edge of the disk where the topography is really ...
27
votes
6answers
7k views

Why no recent information about or photos of Ultima Thule?

It's been two weeks since New Horizons flew past Ultima Thule but the most recent news on the Johns Hopkins site is dated the fourth of January The image gallery has had no new pictures since the ...
7
votes
2answers
739 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?
5
votes
1answer
276 views

Is it possible to take another Pale Blue Dot image?

Pale Blue Dot is a photograph of planet Earth taken on February 14, 1990, by the Voyager 1 space probe from a record distance of about 6 billion kilometers (3.7 billion miles, 40.5 AU), as part of ...
1
vote
1answer
143 views

LORRI raw images in uncompressed format

I have been solving inverse problems (upsampling) for more than 20 years to improve the resolution of bitmaps image (http://www.resampling.narod.ru). I would like to try my algorithm to improve the ...
9
votes
2answers
341 views

Explanation of weird values in New Horizons data?

In this answer I computed (methods given later in post) the estimated time, distance, range, and resolution for the science capture for New Horizon's closest approach to Ultima Thule (2014 MU69). ...
1
vote
0answers
53 views

Could outer system probes detect lasers shone at them from earth (orbit)?

Does the Voyager spacecraft have instruments capable of detecting laser light if shone at them? New Horizons certainly does. Any other probes? Is there any laser capable of accuracy and power enough ...
58
votes
1answer
8k views

How was New Horizons able to direct data so precisely back to Earth?

The New Horizons space probe is sending back images of Ultima Thule, 6.4 billion kilometres away. Barring having a very large power to send information back on a very large angle, it seems to me ...
11
votes
1answer
493 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 ...
4
votes
1answer
287 views

How to calculate New Horizons' MVIC camera max resolution at Pluto and Ultima Thule?

I am in trouble calculating the ground resolution of MVIC instrument onboard New Horizons; I found several documents about MVIC specs, like this one: http://www.boulder.swri.edu/pkb/ssr/ssr-payload-...
4
votes
3answers
219 views

How does New Horizons handle unexpected gravitational effects near Ultima Thule?

What are the navigation techniques used to handle the aggregated unknown effect of gravity from local and distant matter for the New Horizons space probe when it intercepted Ultima-Thule ? I am ...
10
votes
2answers
361 views

How close to 2014 MU₆₉ can New Horizons get?

New Horizons is en-route to 2014 MU₆₉, where it is planned to fly by 1 January 2019. Considering fuel and other considerations, how close to 2014 MU₆₉ can it get? (At the time of writing, October ...
1
vote
0answers
85 views

How can New Horizons reliably approach Ultima Thule over a huge distance? [duplicate]

How did New Horizons navigate to Ultima Thule over 80 million miles from Pluto given the chaotic effect of gravity (from unpredictable local and distant matter) on New Horizons and the fact that the ...
1
vote
1answer
284 views

Where to find raw images of Ultima Thule?

I've found the raw LORRI images taken by New Horizons at Ultima Thule but haven't been able to find raw MVIC images (or data from the other instruments). Does anyone know if these are currently ...
11
votes
2answers
865 views

Will New Horizons seek a third target?

New Horizons will fly past the Kuiper Belt object 2014 MU69 in January 2019. This will use 56 m/s of the remaining ∆V budget of 130 m/s (1). The encounter will occur near the inner edge of the belt: ...
5
votes
0answers
163 views

Having deep space probes use AI to decide where to point their cameras?

With New Horizons on final approach to Ultima Thule (2014 MU69) it has been stated that some or all of the images returned may end up being blank due to the camera being pointed incorrectly because of ...
6
votes
1answer
540 views

What angular resolution is expected during New Horizon's flyby of Ultima Thule?

Ultima Thule is thought to be about 20 miles (30 km) across. However, I can't seem to find any information about approach distance or typical image resolution of New Horizons in regards to this second ...
8
votes
2answers
774 views

How (the heck) can 2014 MU69's orbit be know well enough for a close flyby by New Horizons?

The object 2014 MU69 is much smaller and dimmer than Pluto. Even as New Horizons approaches, it will be much harder for its 8.2 inch aperture, cooled CCD long range imager LORRI to get a fix on it ...
6
votes
1answer
565 views

Timing shadows from the Kuiper belt! Any news? Did it work?

update 24-Jun-2017: SOFIA Arrives in New Zealand to Observe Southern Skies There are plans to fly SOFIA through another predicted occultation path on July 17. SOFIA is a huge (2.5 meter dia.) infrared ...
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 ...
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 ...
4
votes
0answers
46 views

What determined the closest-approach distance between New Horizons and Pluto? [duplicate]

New Horizons passed 7,750 mi (12,472 km) from the surface of Pluto at its closest approach, limiting the image resolution to about 600 feet (183 m). What set the specific closest-approach distance? ...
2
votes
1answer
90 views

Function and nature of the RHC/LCH pair of cables to New Horizons's dish antenna secondary mirror?

Spaceflight 101's New Horizons Spacecraft Overview is full of interesting information and shows this RF Comm System Block Diagram. The thin (red) lines to the dish antenna area are coaxial cables and ...
10
votes
1answer
2k views

Why is New Horizons' data transmission speed so slow compared to Voyager?

New Horizons was said to be able to communicate at ~1kbit/s at Pluto and 38kbit/s at Jupiter. Communication with the spacecraft is via X band. The craft had a communication rate of 38 kbit/s at ...
13
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 ...
7
votes
3answers
671 views

Why did New Horizons have to be spin-balanced to grams-level precision? (With quarters!)

This story about receiving a roll of Space-Themed Florida State commemorative quarters from the Governor of Florida mentions that the New Horizons spacecraft had to be "spin-balanced" to grams-level ...
1
vote
1answer
227 views

What “high-tech fission-powered mission” almost “killed” New Horizons?

When reading the Discover Magazine article How New Horizons Survived the 40-Year-Glitch and Made it to Pluto while writing this question I saw "...the new NASA administrator tried to kill New Horizons ...
3
votes
1answer
445 views

Have deep-space spacecraft always used some form of spread-spectrum for data downlink?

tl;dr: Question: Have deep-space spacecraft always use some form of spread-spectrum for data downlink? note: I'm looking for some insight into why, and any possible exceptions, not just a "yes" or "...
15
votes
2answers
3k views

How much longer would New Horizons take to reach Pluto without the Jupiter slingshot?

A recent answer by PearsonArtPhoto claims: New Horizons was launched at Solar System Escape Velocity, meaning it could have visited anywhere beyond Earth without stopping. It did visit Jupiter, ...
3
votes
1answer
606 views

What caused New Horizon's so-called “40-year glitch”?

The Discover Magazine article How New Horizons Survived the 40-Year-Glitch and Made it to Pluto is a little confusing. It wraps NASA history together with several different space missions to get the "...
12
votes
1answer
572 views

What's after the Kuiper Belt for New Horizons?

NASA has approved the New Horizons mission to 2014MU69 on 1 January 2019 that will require operations at least into 2021 to download the data. However, after that, things get a bit fuzzy - New ...
9
votes
1answer
1k views

Did New Horizons also demonstrate the “Pioneer Anomaly”?

In this short but very helpful answer @MikeH provides a link to this short item published in Nature:"...and farewell to the Pioneer Anomaly" which is well worth reading! It references a Physical ...
5
votes
1answer
440 views

How are precision trajectory measurements made of trans-Neptunian spacecraft?

This question asks if Voyager suddenly encountered unexpected gravity from an unseen object, how would it be detected, and there are several answers. For the farthest probes - those now farther from ...
5
votes
1answer
972 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 ...
35
votes
5answers
11k 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 ...
21
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 ...
15
votes
2answers
790 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 ...
0
votes
0answers
80 views

Pioneer spacecraft anomaly [duplicate]

Has the possibility of the "Pioneer Anomaly" as caused by currently inadequate conceptual models of gravity been put to rest by explaining it as caused by on board thermal radiation ? What is the ...
6
votes
3answers
1k views

Why do New Horizons and Dawn have such different imagers/cameras aboard?

I asked this in other boards but no one could give me answers. So, can someone tell me: Why can New Horizons (which is older than Dawn) take photos in a way higher resolution than Dawn can (NH: 70m/...
4
votes
1answer
224 views

What is the meaning of: New Horizons' communication rate at 1kbit/s between the probe and Earth?

Is it a real-time communication rate measure? As in it would take one second to receive 1 kbit from Pluto?
1
vote
0answers
81 views

How powerful a telescope would be needed to equal New Horizons'? [closed]

New Horizons has sent back some amazing, unexpected photos of Pluto. I'm sure there are people who would love to build a larger version of Hubble that could continue imaging Pluto at a similar ...
4
votes
2answers
134 views

Is Hydra of Pluto cut unusually, or just darkened on its surface?

The image of Hydra recently released shows a sharply edged black half oval cutting deep into its bottom as in the image below. Is it dark sky behind an open gap we see, or just unreflective matter on ...
20
votes
1answer
1k views

Why have there been no new New Horizons images in the last few weeks?

As I write this, the latest image in the NASA's New Horizon's image gallery is this spectacular photo showing Pluto's atmosphere: The full web page for the image is here. That image was posted ...