• Hut on the Moon

    From Alain Fournier@21:1/5 to All on Sat Dec 11 20:10:13 2021
    You probably heard about the "Hut on the Moon" that China's Yutu 2 rover
    has spotted. I don't think the hut itself is interesting but what I
    don't understand is why the image provided by China is so blurry. earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/
    The hut is supposed to be about 80 m away. At that distance a hut should
    be easy to see. Maybe the thing is very small and the image in the press releases is a blow up of a small portion of the actual image. But then
    calling it a hut would be a strange name for it. If it is really very
    small, calling it a die would make more sense.

    Then there is also the fact that they say that it will take 2-3 lunar
    days (months) for the rover to get there. That would be an average speed
    of about 5 cm per hour. I know rovers can be slow, but that is a little ridiculous.

    So does anyone know at which speed Yutu 2 can roll and what resolution
    its cameras have? Does anyone know that there has been some kind of
    error in those news releases?


    Alain Fournier

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Snidely@21:1/5 to All on Sun Dec 12 02:10:48 2021
    Snidely scribbled something on Sunday the 12/12/2021:
    Alain Fournier explained on 12/11/2021 :
    You probably heard about the "Hut on the Moon" that China's Yutu 2 rover
    has spotted. I don't think the hut itself is interesting but what I don't
    understand is why the image provided by China is so blurry.
    earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/
    The hut is supposed to be about 80 m away. At that distance a hut should be >> easy to see. Maybe the thing is very small and the image in the press
    releases is a blow up of a small portion of the actual image. But then
    calling it a hut would be a strange name for it. If it is really very
    small, calling it a die would make more sense.

    Then there is also the fact that they say that it will take 2-3 lunar days >> (months) for the rover to get there. That would be an average speed of
    about 5 cm per hour. I know rovers can be slow, but that is a little
    ridiculous.

    So does anyone know at which speed Yutu 2 can roll and what resolution its >> cameras have? Does anyone know that there has been some kind of error in
    those news releases?

    I don't have the Yutu 2 specs, but consider that on November 08, 2020, from Sol 2933 to Sol 2936, Curiosity had driven a straight line distance of about 123.14 feet (37.53 meters), bringing the rover's total odometry for the mission to 14.47 miles (23.29 kilometers).

    And more recently:
    "On Sept. 12, 2021 (Sol 200) Perseverance drove 175.15m in a single sol
    setting up for the entry into Séítah after going as far as time
    available for driving would allow. After an 8m segment to build the
    initial terrain map, the remainder 167m of the drive used AutoNav – the farthest any of our Mars rovers have driven autonomously in a single
    sol. "

    <URL:https://mars.nasa.gov/mars2020/mission/status/342/driving-farther-and-faster-with-autonomous-navigation-and-helicopter-scouting/>

    /dps

    --
    "Inviting people to laugh with you while you are laughing at yourself
    is a good thing to do, You may be a fool but you're the fool in
    charge." -- Carl Reiner

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Snidely@21:1/5 to All on Sun Dec 12 02:07:19 2021
    Alain Fournier explained on 12/11/2021 :
    You probably heard about the "Hut on the Moon" that China's Yutu 2 rover has spotted. I don't think the hut itself is interesting but what I don't understand is why the image provided by China is so blurry. earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/
    The hut is supposed to be about 80 m away. At that distance a hut should be easy to see. Maybe the thing is very small and the image in the press releases is a blow up of a small portion of the actual image. But then calling it a hut would be a strange name for it. If it is really very small, calling it a die would make more sense.

    Then there is also the fact that they say that it will take 2-3 lunar days (months) for the rover to get there. That would be an average speed of about 5 cm per hour. I know rovers can be slow, but that is a little ridiculous.

    So does anyone know at which speed Yutu 2 can roll and what resolution its cameras have? Does anyone know that there has been some kind of error in those news releases?

    I don't have the Yutu 2 specs, but consider that on November 08, 2020,
    from Sol 2933 to Sol 2936, Curiosity had driven a straight line
    distance of about 123.14 feet (37.53 meters), bringing the rover's
    total odometry for the mission to 14.47 miles (23.29 kilometers).

    /dps

    --
    Maybe C282Y is simply one of the hangers-on, a groupie following a
    future guitar god of the human genome: an allele with undiscovered
    virtuosity, currently soloing in obscurity in Mom's garage.
    Bradley Wertheim, theAtlantic.com, Jan 10 2013

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Alain Fournier@21:1/5 to Snidely on Sun Dec 12 06:20:58 2021
    On Dec/12/2021 at 05:10, Snidely wrote :
    Snidely  scribbled something on Sunday the 12/12/2021:
    Alain Fournier explained on 12/11/2021 :
    You probably heard about the "Hut on the Moon" that China's Yutu 2
    rover has spotted. I don't think the hut itself is interesting but
    what I don't understand is why the image provided by China is so blurry. >>> earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/
    The hut is supposed to be about 80 m away. At that distance a hut
    should be easy to see. Maybe the thing is very small and the image in
    the press releases is a blow up of a small portion of the actual
    image. But then calling it a hut would be a strange name for it. If
    it is really very small, calling it a die would make more sense.

    Then there is also the fact that they say that it will take 2-3 lunar
    days (months) for the rover to get there. That would be an average
    speed of about 5 cm per hour. I know rovers can be slow, but that is
    a little ridiculous.

    So does anyone know at which speed Yutu 2 can roll and what
    resolution its cameras have? Does anyone know that there has been
    some kind of error in those news releases?

    I don't have the Yutu 2 specs, but consider that on November 08, 2020,
    from Sol 2933 to Sol 2936, Curiosity had driven a straight line
    distance of about 123.14 feet (37.53 meters), bringing the rover's
    total odometry for the mission to 14.47 miles (23.29 kilometers).

    And more recently:
    "On Sept. 12, 2021 (Sol 200) Perseverance drove 175.15m in a single sol setting up for the entry into Séítah after going as far as time
    available for driving would allow. After an 8m segment to build the
    initial terrain map, the remainder 167m of the drive used AutoNav – the farthest any of our Mars rovers have driven autonomously in a single sol. "

    So 175m in a sol is about 150 times faster than 80m in 2-3 months. Since
    Yutu 2 doesn't really need auto-pilot capabilities and can be remotely controlled from earth, I really don't see why it should be so slow.

    Of course, the hut might very well be a very low priority objective.
    Maybe they can roll 80m in 10 minutes, but they are going to do science
    on the way and take a few detours to check a few other things before
    going to the hut.


    Alain Fournier

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Otto J. Makela@21:1/5 to Alain Fournier on Thu Jan 20 17:32:38 2022
    Alain Fournier <alain245@videotron.ca> wrote:

    You probably heard about the "Hut on the Moon" that China's Yutu 2
    rover has spotted. I don't think the hut itself is interesting but
    what I don't understand is why the image provided by China is so
    blurry. http://earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/ The hut is supposed to be about 80 m away. At that distance a hut
    should be easy to see. Maybe the thing is very small and the image in
    the press releases is a blow up of a small portion of the actual
    image. But then calling it a hut would be a strange name for it. If it
    is really very small, calling it a die would make more sense.

    It was blurry, since it was zoomed in as much as the image could allow.
    Was anyone really surprised it turned out to be just a boulder?

    https://www.sciencealert.com/three-guesses-what-that-mysterious-hut-found-on-the-moon-turned-out-to-be

    --
    /* * * Otto J. Makela <om@iki.fi> * * * * * * * * * */
    /* Phone: +358 40 765 5772, ICBM: N 60 10' E 24 55' */
    /* Mail: Mechelininkatu 26 B 27, FI-00100 Helsinki */
    /* * * Computers Rule 01001111 01001011 * * * * * * */

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Sylvia Else@21:1/5 to Alain Fournier on Sat Jan 22 14:11:27 2022
    On 12-Dec-21 12:10 pm, Alain Fournier wrote:
    You probably heard about the "Hut on the Moon" that China's Yutu 2 rover
    has spotted. I don't think the hut itself is interesting but what I
    don't understand is why the image provided by China is so blurry. earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/
    The hut is supposed to be about 80 m away. At that distance a hut should
    be easy to see. Maybe the thing is very small and the image in the press releases is a blow up of a small portion of the actual image. But then calling it a hut would be a strange name for it. If it is really very
    small, calling it a die would make more sense.

    Then there is also the fact that they say that it will take 2-3 lunar
    days (months) for the rover to get there. That would be an average speed
    of about 5 cm per hour. I know rovers can be slow, but that is a little ridiculous.

    So does anyone know at which speed Yutu 2 can roll and what resolution
    its cameras have? Does anyone know that there has been some kind of
    error in those news releases?


    Alain Fournier

    The "hut" has been clearly identified as a rock.

    Sylvia.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Snidely@21:1/5 to All on Sat Jan 22 01:48:25 2022
    Watch this space, where Sylvia Else advised that...
    On 12-Dec-21 12:10 pm, Alain Fournier wrote:
    You probably heard about the "Hut on the Moon" that China's Yutu 2 rover
    has spotted. I don't think the hut itself is interesting but what I don't
    understand is why the image provided by China is so blurry.
    earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/
    The hut is supposed to be about 80 m away. At that distance a hut should be >> easy to see. Maybe the thing is very small and the image in the press
    releases is a blow up of a small portion of the actual image. But then
    calling it a hut would be a strange name for it. If it is really very
    small, calling it a die would make more sense.

    Then there is also the fact that they say that it will take 2-3 lunar days >> (months) for the rover to get there. That would be an average speed of
    about 5 cm per hour. I know rovers can be slow, but that is a little
    ridiculous.

    So does anyone know at which speed Yutu 2 can roll and what resolution its >> cameras have? Does anyone know that there has been some kind of error in
    those news releases?


    Alain Fournier

    The "hut" has been clearly identified as a rock.


    How many days did it take to get close enough to confirm that?

    /dps

    --
    "I am not given to exaggeration, and when I say a thing I mean it"
    _Roughing It_, Mark Twain

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Alain Fournier@21:1/5 to Snidely on Sat Jan 22 10:52:24 2022
    On Jan/22/2022 at 04:48, Snidely wrote :
    Watch this space, where Sylvia Else advised that...
    On 12-Dec-21 12:10 pm, Alain Fournier wrote:
    You probably heard about the "Hut on the Moon" that China's Yutu 2
    rover has spotted. I don't think the hut itself is interesting but
    what I don't understand is why the image provided by China is so blurry. >>> earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/
    The hut is supposed to be about 80 m away. At that distance a hut
    should be easy to see. Maybe the thing is very small and the image in
    the press releases is a blow up of a small portion of the actual
    image. But then calling it a hut would be a strange name for it. If
    it is really very small, calling it a die would make more sense.

    Then there is also the fact that they say that it will take 2-3 lunar
    days (months) for the rover to get there. That would be an average
    speed of about 5 cm per hour. I know rovers can be slow, but that is
    a little ridiculous.

    So does anyone know at which speed Yutu 2 can roll and what
    resolution its cameras have? Does anyone know that there has been
    some kind of error in those news releases?


    Alain Fournier

    The "hut" has been clearly identified as a rock.


    How many days did it take to get close enough to confirm that?

    The EarthSky article https://earthsky.org/space/mystery-hut-yutu-2-rover-far-side-of-moon-china/
    I referred to was dated Dec 10, 2021. The Science alert article Otto J.
    Makela referred to https://www.sciencealert.com/three-guesses-what-that-mysterious-hut-found-on-the-moon-turned-out-to-be
    was dated Jan 10, 2022. So that is a 31 day gap. The new image is still
    blurry so I would guess still taken from a distance.

    More interestingly, in the Science alert paper, they say that Yutu has
    driven over 1000 meters since January 2019. So the rover seems to be
    speeding along at the high speed of about 1 meter per day. I think the
    slow speed is for the ground penetrating radar they are using. Chasing
    rocks, even rocks that have strange shapes is lower priority than using
    the ground penetrating radar.


    Alain Fournier

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)