India's Chandrayaan Blasts Off To The Moon!, page 40
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reply posted on 24-11-2008 @ 12:35 PM by Phage
Originally posted by zorgon
But how does that account for the raging dust storms that NASA is talking about?

And what about the crepuscular rays that Surveyor photographed and the Astronauts sketched?

I would say dust storms are 'volatile' and 'crepuscular rays' require a significant atmosphere...


No.
Why do you keep bringing this up? In fact an atmosphere would prevent it from happening.

Above: In 1968, on many occasions, NASA's Surveyor 7 moon lander photographed a strange "horizon glow" after dark. Researchers now believe the glow is sunlight scattered from electrically-charged moondust floating just above the lunar surface.


Stranger still, moondust might gather itself into a sort of diaphanous wind. Drawn by differences in global charge accumulation, floating dust would naturally fly from the strongly-negative nightside to the weakly-negative dayside. This "dust storm" effect would be strongest at the Moon's terminator, the dividing line between day and night.


Source


[edit on 24-11-2008 by Phage]



reply posted on 24-11-2008 @ 09:45 PM by sentinel2107
reply to post by Phage


What about Hoagland's glass ruins to account for those glows?


reply posted on 24-11-2008 @ 10:26 PM by Phage
reply to post by mikesingh



We know that there is not a substantial atmosphere. There are no observed phenomena which indicate an atmosphere. There are many which indicate none. Instrumentation has told us just how much "atmosphere" there is. (I know, the dog ate the "real" data)

When it comes to phenomena that we don't know the cause of the theories are developed which could account for them. In creating a theory known data are taken into account.

We know from data returned from the Lunar Prospector that the night area of the moon carries an electrostatic charge of -50 to -100 volts (it gets a lot higher when the moon passes through the plasma lobes of the magnetosphere. The daytime areas generally carry a slight positive charge. We know that a stuff with opposing static charges get attracted to each other (the old comb and paper pieces trick). Thus electrostatic activity becomes a theory to account for the observed "horizon glow" and "streamers". It seems like a pretty good theory (the use of the word "seems" is intentional).

[edit on 24-11-2008 by Phage]

[edit on 24-11-2008 by Phage]


reply posted on 25-11-2008 @ 02:54 AM by Phage
reply to post by sentinel2107



Here it comes.
There is going to be more data than any of us know what to do with.
Guess what's on the moon... craters!

I'm up too late.


reply posted on 25-11-2008 @ 03:46 AM by ziggystar60
reply to post by Phage




Yes, you are absolutely right, Phage.
There are craters up there too.




reply posted on 25-11-2008 @ 12:30 PM by sentinel2107
Playing it safe as things heat up. Let's hope for the best!
India moon craft hit by heat rise

Excerpts:
Indian scientists are exploring various options to cool down a sudden surge of temperature inside the county's first unmanned lunar craft, Chandrayaan 1.
...
"Now the moon, our satellite and the sun are in same line this means our craft is receiving 1,200 watts of heat from the moon and 1,300 watts from the sun per meter square," said M Annadurai, project director of Indian's moon mission.

If the temperature is not kept in check, many instruments on board the orbiter may fail to perform, scientists say.
...
"We have rotated the spacecraft by 20 degrees and this has helped to reduce the temperature of the craft. We have also switched off certain equipment like mission computers and this has resulted in the reduction of temperature to 40C now. At this temperature all the equipment can perform very well," Mr Annadurai said.

"Although we did factor in the thermal conditions in the lunar orbit, the temperature is a bit higher than we anticipated."

He insisted all the instruments carried on board of the satellite have been tested and were working properly.
...
Scientists also plan to raise the orbit of the Indian craft to cool it down. It is presently in orbit 100km (62 miles) from the moon. However Mr Annadurai said that would only be done as a last resort.
...


[edit on 25/11/2008 by sentinel2107]


reply posted on 25-11-2008 @ 05:37 PM by contradunce
Just another interesting article..all systems seem to be on a go. The Hindu got some interesting pics that are not on the CY ISRO website..

Detail-Rich: Three-dimensional images of the moon’s surface, with craters and other features, captured during the past fortnight by the Terrain Mapping Camera of Chandrayaan-1.


CHENNAI: Nine out of 11 scientific instruments on board Chandrayaan-1 have been switched on, and the data that have been radioed in by them are being analysed.

According to M. Annadurai, Project Director, Chandrayaan-1, the data include three-dimensional pictures of the Moon’s surface taken by the Terrain Mapping Camera, an instrument built by ISRO’s Space Applications Centre, Ahmedabad.

The TMC has fore, nadir and aft cameras. Of the nine instruments that have been activated, the Moon Impact Probe, painted in the colours of the Indian flag, landed on the Moon on November 14.

Two more to go


The instruments that remain to be activated are the High Energy X-ray Spectrometer (HEX) and the Sub keV Atom Reflecting Analyser (SARA). HEX, built by the Physical Research Laboratory, Bangalore and the ISRO Satellite Centre, Bangalore, will study the Moon’s polar regions for deposits of water ice and prospect areas for high uranium and thorium concentration.

SARA will investigate the surface composition, how its surface reacts to the solar wind and how materials are altered in space. SARA has been jointly built by the Swedish Institute of Space Physics and the Space Physics Laboratory of the Vikram Sarabhai Space Centre, Thiruvananthapuram.

HEX and SARA, both high voltage instruments, will be switched on in the first week of December. “These are high voltage systems. You have to wait for some time in orbit before they are switched on,” Mr. Annadurai said.

When the ISRO performed a series of manoeuvres by firing Chandrayaan-1’s onboard engine to take the spacecraft to the Moon and then lower it into the final lunar orbit at an altitude of 100 km above it, the two systems could have been exposed to gases.

These gases should be “evacuated’ before the two instruments were activated, he said. The calibration of instruments was under way. Teams dealing with the instruments were studying the data received. “The science data needs to be fully reviewed and analysed,” said Mr. Annadurai ....



www.hindu.com...


The overheating problem is causing temperatures on CY to go to 50 celsius, instead of the 40 c thats comfortable for equipment and was expected. Not sure what problems it may lead to later, but the next month seems critical. However good news is all instruments are functioning well and been tried out. ISRO has a competent people. Am sure they will do the best they can. Apart from criticising them for the website and poor PR, i do appreciate their openness and honesty. Something other space programs in the immediate neighbourhood can learn from.

(They've got it back to 40 c by reorienting the spacecraft by 20 degrees with mission instruments OK so far. Changing to a higher orbit is a last resort.)




[edit on 25-11-2008 by contradunce]



reply posted on 26-11-2008 @ 02:37 AM by contradunce
There's a new TMC video just out.

www.isro.org...

Great video!! More pics here including RADON data:

www.isro.org...

[edit on 26-11-2008 by contradunce]
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