IPB

Welcome Guest ( Log In | Register )

11 Pages V  « < 8 9 10 11 >  
Reply to this topicStart new topic
Chang'e 3: Lunar Day 3 and onwards, Ongoing discussion of the Rover/Lander mission
Phil Stooke
post Feb 19 2016, 08:44 PM
Post #136


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



Update on February 18th:

https://twitter.com/uhf_satcom

-------------------------------------

UHF Satcom ‏@uhf_satcom

Nothing again tonite on X-Band from either the Yutu lunar rover or the Chang'e'3 lander - will check again tomorrow!

-------------------------------------

The same (very useful) source detected nothing last month as well. Note that the negative result only applies to the specific times of monitoring, and there may have been activity when uhf_satcom was not facing (or listening to) the Moon but China was in contact.

Phil


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
A.Nemo
post Feb 20 2016, 03:06 AM
Post #137


Junior Member
**

Group: Members
Posts: 31
Joined: 10-January 14
Member No.: 7094



QUOTE (Phil Stooke @ Feb 20 2016, 04:44 AM) *
Update on February 18th:

https://twitter.com/uhf_satcom

-------------------------------------

UHF Satcom ‏@uhf_satcom

Nothing again tonite on X-Band from either the Yutu lunar rover or the Chang'e'3 lander - will check again tomorrow!

-------------------------------------

The same (very useful) source detected nothing last month as well. Note that the negative result only applies to the specific times of monitoring, and there may have been activity when uhf_satcom was not facing (or listening to) the Moon but China was in contact.

Phil


http://energy.chinanews.com/sh/2016/02-19/7765315.shtml
"嫦娥三号"超期服役14个月 "嫦娥五号"转入正样研制

记者19日从中国国家国防科技工业局获悉,“嫦娥三号”着陆器于2月18日成功自主唤醒,进入第28个月昼,工作正常。

SASTIND told reporter, Chang'e-3 lander has been wake up on februrary 18,
Go to the top of the page
 
+Quote Post
Phil Stooke
post Feb 20 2016, 07:19 AM
Post #138


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



Thanks! That is very useful.

If you check out the link in the post above, there is a new image of the lander from the rover. It seems to have been taken in March 2014 from Yutu in its final resting place, and this is the first time I have seen it.

Phil


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
A.Nemo
post Feb 25 2016, 01:52 PM
Post #139


Junior Member
**

Group: Members
Posts: 31
Joined: 10-January 14
Member No.: 7094



UHF Satcom ‏@uhf_satcom 2月22日
Another quick FFT of Yutu Rover X-Band downlink - nothing detected from Chang'e'3 lander or 7GHz uplinks.

UHF Satcom ‏@uhf_satcom 2月22日
Yutu Lunar Rover is back in town! A massive signal on 8462.053MHz complete with sidebands, maybe low-rate data.
Go to the top of the page
 
+Quote Post
Phil Stooke
post May 18 2016, 06:00 AM
Post #140


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



UHF Satcom ‏@uhf_satcom · 10 hours ago [ = the night of the 17th/18th of May ]

No signals from Chang'e'3 lander or Yutu Lunar Rover tonite - caught a glimpse of 8496MHz lander downlink last night but it was short lived.

----------------

Phil

(PS: UHF Satcom is in the UK, so transmissions when Chang'E 3 and Yutu are visible in China but not in the UK will not be detected)


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
Phil Stooke
post Jun 20 2016, 07:05 PM
Post #141


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



UHF Satcom reports no contact with Chang'E 3 or Yutu in June.

Phil



--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
A.Nemo
post Jul 29 2016, 08:03 AM
Post #142


Junior Member
**

Group: Members
Posts: 31
Joined: 10-January 14
Member No.: 7094



http://www.sastind.gov.cn/n112/n117/c6636073/content.html
State Administration for Science, Technology and Industry for National Defense(SASTIND) reports latest news of Chang'e3

嫦娥三号着陆器于7月28日按时进入第33月夜休眠期

Chang'e-3 lander sleep on july 28
Go to the top of the page
 
+Quote Post
Thorsten Denk
post Sep 8 2016, 08:09 AM
Post #143


Member
***

Group: Members
Posts: 122
Joined: 3-September 12
From: Almeria, SE Spain
Member No.: 6632



Great 360deg panoramas from Cháng'é-3 and Yùtù!
Put them full-screen, and you really think you're there!

Thorsten
Go to the top of the page
 
+Quote Post
stevesliva
post Sep 8 2016, 09:29 PM
Post #144


Senior Member
****

Group: Members
Posts: 1578
Joined: 14-October 05
From: Vermont
Member No.: 530



An image of earth is just plopped in there? Or there was a massive hurricane over Texas?
Go to the top of the page
 
+Quote Post
Thorsten Denk
post Sep 8 2016, 09:37 PM
Post #145


Member
***

Group: Members
Posts: 122
Joined: 3-September 12
From: Almeria, SE Spain
Member No.: 6632



QUOTE (stevesliva @ Sep 8 2016, 11:29 PM) *
An image of earth is just plopped in there? Or there was a massive hurricane over Texas?


Earth and Sun are faked obviously...
Go to the top of the page
 
+Quote Post
Phil Stooke
post Sep 28 2016, 10:40 PM
Post #146


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



http://www.chinaspaceflight.com/satellite/.../CE-3/CE-3.html

According to this, Chang'E 3 has survived its 35th lunar day (September) and operated through the lunar eclipse on September 16, apparently using its telescope for astronomical observations during the eclipse.

Phil


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
Phil Stooke
post May 6 2017, 03:33 PM
Post #147


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



Today, May 6th, Chang'e 3 is expected to wake up for its 43rd lunar day. There is a schedule of day-night cycles here:

http://iloa.org/media/Chang'e3_Lunar_Day_Night_Cycle.pdf

That is from the International Lunar Observatory Association which has a data-sharing agreement with China to use its UV telescope data. The list was issued in February so presumably the lander was active at that time.

Phil


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
Phil Stooke
post Jun 13 2017, 03:42 AM
Post #148


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



Looking back at the lander panoramas, this is a circular version of a panorama to show the distance to some horizon features. The western horizon was only a few hundred metres away, but several distant hills showed above it (see post on the page before this on the forum). The eastern horizon was between 2 and 4 km away with some crater rims visible, and to the north some distant topography showed above a nearby crater rim. The next image tries to identify the more distant features.

Phil

Attached Image


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
Phil Stooke
post Jun 13 2017, 03:45 AM
Post #149


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



These maps zoom in to the lander location. In the first image some distant craters are indicated which appear to be the distant hills in the circular panorama. The northern hills might be crater rim or the ridge north of the crater.

Phil

Attached Image


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post
Phil Stooke
post Sep 8 2020, 08:24 PM
Post #150


Solar System Cartographer
****

Group: Members
Posts: 10127
Joined: 5-April 05
From: Canada
Member No.: 227



CE3's lander is still active! (as of June and July 2020 anyway):

https://twitter.com/df2mz/status/1282242945291374592

and

https://twitter.com/uhf_satcom/status/1267556732080971776


There's also this article in Chinese:

https://news.cctv.com/2020/09/02/ARTIqB5tNF...khi200902.shtml


It refers to a recently published study using Yutu's radar data for subsurface structure and geological history. The original is here:

https://agupubs.onlinelibrary.wiley.com/doi...29/2020GL088938

(it's not open access). But the Chinese article also mentions "As of September 1, 2020, Chang'e-3 has been in the moon for 2453 days, and it is now in a "retired" state, that is, in the long-term management stage, and part of the lander's scientific payload is still working." |(Google translation). That part of the payload might only be the communication system, for all this tells us, but it might also suggest the UV camera is still functioning. I have no confirmation of that, but I understand some papers from the UV data are in preparation.

PS - for a recent paper on the UV data, see https://iopscience.iop.org/article/10.1088/...27/19/7/94/meta



Phil


--------------------
... because the Solar System ain't gonna map itself.

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
Go to the top of the page
 
+Quote Post

11 Pages V  « < 8 9 10 11 >
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 28th March 2024 - 06:21 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.