Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

India's Chandrayaan 2 mission + updates

  • Please log in to reply
56 replies to this topic

#1 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 14 July 2019 - 04:07 PM

Update: India's Chandrayaan 2 mission to the Moon was expected to launch today this 14 July, 2019, however, 56 minutes into the launch countdown, a technical snag in the fuel conductor was reported. So, for now, the countdown is on hold. ISRO are reporting that a future launch date will be announced, so if you'd like to stay up-to-date, there is an ISRO Twitter link.

 

John Moore


Edited by Jayem, 15 July 2019 - 04:51 AM.

  • gustavo_sanchez likes this

#2 highfnum

highfnum

    Aurora

  • *****
  • Posts: 4584
  • Joined: 06 Sep 2006
  • Loc: NE USA

Posted 15 July 2019 - 10:14 AM

hope all goes well



#3 frank5817

frank5817

    Voyager 1

  • *****
  • Moderators
  • Posts: 13142
  • Joined: 13 Jun 2006
  • Loc: Arizona

Posted 16 July 2019 - 06:16 PM

Thanks John.

I am checking in thanks to your post.

 

Frank



#4 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 17 July 2019 - 06:10 AM

Thanks, Frank

 

While ISRO isn't giving much to the public about the problem that delayed the launch, the next launch attempt will be this Monday 22 July, 2019 at 2.43 pm IST. There is another launch window at the end of July 29/30, 2019, and also another window in September 2019.

 

John


Edited by Jayem, 18 July 2019 - 04:50 AM.


#5 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 22 July 2019 - 06:40 AM

India's Chandrayaan 2 lunar mission to the Moon has successfully launched today, 22 July 2019 (at 0913 GMT) from its space centre in Sriharikota, near the Bay of Bengal.

 

Already having separated from its launcher's second stage and now in Earth orbit, Chandrayaan 2 is expected to touchdown somewhere within the near region of the lunar South Pole some time in early September 2019.

 

The mission includes both a lander and rover (also with an orbiter overhead), and all three include various research instruments (13 of Indian, 1 of NASA) used in areas, for example: looking for water and minerals signatures, and the study of moonquakes and possible future landing sites...amongst other activities. The orbiter has eight instruments onboard, the lander with four (including the NASA instrument), while the rover has the remaining two.

 

On touchdown, the solar-powered rover will off-load from the lander after some four hours or so, where it will then mainly rove around the surface during lunar day-long (14 earth days) stints. Note, just like the Chang'e 4 rover setup, the Chandrayaan 2 rover (named as Pragyan) might have to power-down for a couple of earth days (temperature purchases on the electronics), during when the high sun is overhead. However, given that its location is in the far 70-degrees south on the lunar surface, perhaps, such power-down options can be shortened? 

 

John Moore

Twin image set below: left shows Chandrayaan 2 separation, right shows the lander and rover (credit: ISRO)

Bottom image: possible landing sites.

 

Chandrayaan 2 Lander And Rover
 
chandrayaan 2 landing sites
 

 


Edited by Jayem, 22 July 2019 - 06:42 PM.

  • frank5817, highfnum, bdg and 2 others like this

#6 highfnum

highfnum

    Aurora

  • *****
  • Posts: 4584
  • Joined: 06 Sep 2006
  • Loc: NE USA

Posted 22 July 2019 - 10:04 AM

this is good news



#7 gustavo_sanchez

gustavo_sanchez

    Apollo

  • *****
  • Moderators
  • Posts: 1077
  • Joined: 30 Dec 2010
  • Loc: Puerto Rico, US

Posted 22 July 2019 - 02:47 PM

It'll be awesome to see what new pictures they come up with from the south pole. I wonder how illuminated is the pole in terms of solar power for the rover (I'm assuming the rover is solar powered, please correct me if incorrect).

#8 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 22 July 2019 - 02:54 PM

Thanks, Gustav...and congratulations on the new Moderator position.

 

Yes, the rover, as well as the lander, are solar-powered, and you're correct, illumination of such will slightly be shorter given their expected southern -70.00 degrees location. I'd expect (and don't quote me on this) that the ISRO engineers have inputted this into their equations/code and onboard electronics.

 

The long, lunar day (14 earth days) stints that the Chandrayaan 2 rover (Pragyan) is expected to undergo near/below the 70.0s degree South Pole environment, will be different. The southerly periodic lighting conditions, let alone the temperatures changes, may affect the amount of days that the rover can rove (the various powering down/up periods might be shorter due to less illumination on the solar panels, but then, that said, will the slight temperature changes involved during such shorter periods, allow longer day explorations).

 

John Moore


Edited by Jayem, 22 July 2019 - 11:06 PM.

  • gustavo_sanchez likes this

#9 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 02 August 2019 - 11:23 AM

A milestone: the fourth orbit-raising manoeuvre of Chandrayaan 2 occurred today, 2 August 2019, where in the next few days, 6 August, it will finally go to the Moon. 

 

John Moore

 

Chandrayaan Last Earth Manoeuvre

  • pdxmoon, mikerepp and Dartguy like this

#10 pdxmoon

pdxmoon

    Surveyor 1

  • *****
  • Posts: 1538
  • Joined: 27 Jun 2013
  • Loc: Oregon

Posted 02 August 2019 - 06:39 PM

Very exciting news of new exploration!



#11 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 04 August 2019 - 03:26 PM

Below, some earth views taken by Chandrayaan 2 on the 3 August 2019. As the spacecraft's trans-lunar injection (Wikipedia explanation) is expected to occur on 14 August, 2019, I suspect the views will be quite different...some moon shots, hopefully will follow over the then next few days, if cameras are pointing in that direction. 

 

John Moore

 

(Image credit: ISRO)

 

EarthViews 3August2019

Edited by Jayem, 04 August 2019 - 03:38 PM.

  • gustavo_sanchez, pdxmoon and mikerepp like this

#12 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 08 August 2019 - 05:17 AM

Below, a list of planned orbital burns up to 14 August, 2019. If, and when, all goes well with landing on the lunar surface on 6 September, 2019 at 21:20 UT (7 September, 2019 Indian time at 2:20 AM), the expected length of the mission will last for some 12 days or so, and may not survive the following lunar night.

 

John Moore

 

PlannedOrbitBurns toAugust14 2019


#13 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 20 August 2019 - 01:35 AM

Lunar Orbit Insertion (LOI) done today, 20 Aug, 2019.

 

Chandrayann 2 will now begin further orbital manoeuvres; preparing it particularly above the south pole region of the Moon (some 100 km above the lunar surface), for landing on the lunar surface sometime in early September 2019 (Sept 6 to 8). A rover attached to the lander will then separate hours later - assuming all goes well.

 

John Moore


Edited by John_Moore, 20 August 2019 - 04:01 AM.

  • frank5817, pdxmoon and mikerepp like this

#14 highfnum

highfnum

    Aurora

  • *****
  • Posts: 4584
  • Joined: 06 Sep 2006
  • Loc: NE USA

Posted 20 August 2019 - 07:04 AM

saw Indian news conference 

separation should take place sept 2


  • John_Moore likes this

#15 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 22 August 2019 - 11:31 AM

Below, Chadrayaan-2's first shot of the lunar surface of the Farside...looks very nice indeed (that's the Orientale Basin to the top right).

 

John Moore

 

FirstMoonShot ChanrayaanFarside

Edited by John_Moore, 22 August 2019 - 07:47 PM.

  • frank5817, highfnum, pdxmoon and 4 others like this

#16 pdxmoon

pdxmoon

    Surveyor 1

  • *****
  • Posts: 1538
  • Joined: 27 Jun 2013
  • Loc: Oregon

Posted 22 August 2019 - 02:55 PM

Fantastic!


  • John_Moore likes this

#17 Tyson M

Tyson M

    Soyuz

  • *****
  • Posts: 3667
  • Joined: 22 Jan 2015
  • Loc: 53 degrees North

Posted 31 August 2019 - 03:58 PM

Below, Chadrayaan-2's first shot of the lunar surface of the Farside...looks very nice indeed (that's the Orientale Basin to the top right).

 

John Moore

 

Awesome picture!



#18 highfnum

highfnum

    Aurora

  • *****
  • Posts: 4584
  • Joined: 06 Sep 2006
  • Loc: NE USA

Posted 01 September 2019 - 07:15 AM

i read final composite orbital burn 7pm today

 

landing attempt on 7th



#19 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 01 September 2019 - 10:55 AM

Thanks, highfnum...and you're correct as it was the fifth and final orbit manoeuvre that occurred at 18:21 India Standard Time Sept 2019; achieving an 119 km x 127 km orbit around the Moon.

 

Today, 2 Sept, 2019, separation of Vikram (with the Pragyan Rover onboard) from the Chandrayaan-2 Orbiter was a success. The rest of manoeuvres up to 7 Sept, as you mention, will, hopefully, be history for India (and the World).

 

John Moore

Image credit: ISRO

 

TentativePlanofOperations

Edited by John_Moore, 02 September 2019 - 05:49 AM.


#20 highfnum

highfnum

    Aurora

  • *****
  • Posts: 4584
  • Joined: 06 Sep 2006
  • Loc: NE USA

Posted 02 September 2019 - 02:21 PM

successful Vikram separation 



#21 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 05 September 2019 - 01:34 PM

Below, the lighting conditions of the Simpelius-Manzinus region (Simpelius N and Manzinus C are approximately at centre), where, fingers crossed, all will go well with the landing operations to occur tomorrow, 6 Sept, 2019, round 6.0 pm UTC. Note, locations and times may vary significantly over the intervening period, so take all of the above as hearsay, not, official.

 

John Moore

 

SimpeliusN ManzinusC

  • mikerepp, Dartguy and BeltofOrion like this

#22 bdg

bdg

    Viking 1

  • *****
  • Posts: 737
  • Joined: 31 Oct 2013

Posted 06 September 2019 - 02:49 PM

Anyone watching the live stream

 

https://www.pscp.tv/w/1BRJjqNokONGw



#23 John_Moore

John_Moore

    Author: Craters of the Nearside Moon

  • -----
  • Vendors
  • topic starter
  • Posts: 473
  • Joined: 24 Jul 2009

Posted 06 September 2019 - 04:02 PM

Yeah, watched it live....but it looks like something went wrong during the 'fine-braking' phase at altitude 2.1 km. Hopefully, the orbiter will return some further data...in the near future.

 

John Moore



#24 highfnum

highfnum

    Aurora

  • *****
  • Posts: 4584
  • Joined: 06 Sep 2006
  • Loc: NE USA

Posted 06 September 2019 - 04:25 PM

as of this moment does not look good 



#25 gustavo_sanchez

gustavo_sanchez

    Apollo

  • *****
  • Moderators
  • Posts: 1077
  • Joined: 30 Dec 2010
  • Loc: Puerto Rico, US

Posted 06 September 2019 - 04:54 PM

Didn't see the stream. What happened?


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics