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Scientific Experiments & Electrical Consumption #6

Open Gizmotronn opened 4 years ago

Gizmotronn commented 4 years ago

1 #2 #4 #5

https://www.herox.com/VenusRover/forum/thread/5127

Gizmotronn commented 4 years ago

I'll say we run a comparison study b/e rockets and spacecraft then and now -- would give us a better idea

@EXYNOS-999

Doing this now

Gizmotronn commented 4 years ago

Ideas about experiments:

  1. Possible radar map that is generated by the mothership - with multiple rovers around the surface of Venus

What data do we have already, and don't need to worry about:

  1. Temperature?
  2. Size
  3. Mass
  4. Density?

What data can we get?

  1. Composition of surface
  2. Magnetic field/plate tectonics - possibly looking at the composition of the "soil"

Notes:

  1. Rovers, once they can't move anymore, can still conduct experiments and collect data
  2. A lot of the experiments only need to be turned on once, aka they're not passive. This would mean that we therefore don't have to worry too much about power consumption, provided that no single component uses more than 14 watts of power (remember, our obstacle avoidance sensor has to use at most 1 watt of power, because that is the maximum amount of power that can be used most of the time). Therefore, we may have 100 experiments we want to do that would require 10000 Watts if they were activated all at once, but we could activate one at a time. Or, we could put different tools/devices on different rovers (see map)
  3. We need to also determine which data can be collected mechanically, and how data will be transmitted - Data Storage Research & Sensors

Timeline of spacecraft (man-made):

  1. Wikipedia
  2. 1970s in spaceflight - Wikipedia
Gizmotronn commented 4 years ago

To determine which experiments have been done on Venus, I'm going to look at the probes/landers that went to Venus, and then also at the recent probes and landers to see what we can improve on

Gizmotronn commented 4 years ago

In terms of recent space probes, I'm going to look at the following space programs:

  1. Chinese Space Program
  2. Japanese Space Program
  3. NASA
  4. ESA

In terms of spaceprobes from the 20th century, I'll be looking at NASA & Roscosmos mainly. This is because they were the two main superpowers. I'm also going to look at early 21st century probes, for example the Beagle rover.

I'll share the links here.

Gizmotronn commented 4 years ago

21st Century

China

Yutu-2

Power:

Both the stationary lander and Yutu-2 rover are equipped with a radioisotope heater unit (RHU) in order to heat their subsystems during the long lunar nights, while electrical power is generated by solar panels.

After landing, the lander extended a ramp to deploy the Yutu-2 rover (literally: "Jade Rabbit") to the lunar surface.[10] The rover measures 1.5 × 1.0 × 1.0 m (4.9 × 3.3 × 3.3 ft) and has a mass of 140 kg (310 lb).[2][3] Yutu-2 rover was manufactured in Dongguan, Guangdong province; it is solar-powered, RHU-heated,[9] and it is propelled by six wheels. The rover's nominal operating time is three months,[1] but after the experience with Yutu rover in 2013, the rover design was improved and Chinese engineers are hopeful it will operate for "a few years."[

This is a possible way that probes could land on Venus. The rover could be deposited in a lander, which only needs to be active for a few hours - from the time it is sent from the orbiter/mothership around Venus to the surface of Venus, where it will deploy the AREE.

Yutu Payloads Panoramic Camera (PCAM), is installed on the rover's mast and can rotate 360°. It has a spectral range of 420 nm–700 nm and it acquires 3D images by binocular stereovision.[12] Lunar penetrating radar (LPR), is a ground penetrating radar with a probing depth of approximately 30 m with 30 cm vertical resolution, and more than 100 m with 10 m vertical resolution.[12] Visible and Near-Infrared Imaging Spectrometer (VNIS), for imaging spectroscopy that can then be used for identification of surface materials and atmospheric trace gases. The spectral range covers visible to near-infrared wavelengths (450 nm - 950 nm). Advanced Small Analyzer for Neutrals (ASAN), is an energetic neutral atom analyzer provided by the Swedish Institute of Space Physics (IRF). It will reveal how solar wind interacts with the lunar surface, which may help determine the process behind the formation of lunar water.[13]

Operations & Results

References:

Gizmotronn commented 4 years ago

I'm also adding my findings into the private AC0/RD community (https://tribe.acord.software/topic/areeeh --> https://github.com/acord-robotics)