Author Topic: LIVE: Chandrayaan-1 launch - First Indian mission to the Moon - October 22, 08  (Read 89007 times)

Offline s^3

  • Full Member
  • *
  • Posts: 105
  • Hyderabad
    • My Blogs Summary
  • Liked: 24
  • Likes Given: 5
LIVE EVENT PAGES FOR LAUNCH AND MISSION.
« Last Edit: 10/22/2008 12:50 AM by Chris Bergin »

Offline s^3

  • Full Member
  • *
  • Posts: 105
  • Hyderabad
    • My Blogs Summary
  • Liked: 24
  • Likes Given: 5
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #1 on: 12/01/2007 04:11 AM »
The details of Indian and Foreign payloads on Chandrayan -1 are as follows:

A) The Indian payloads  :


Terrain Mapping Camera (TMC)
To map topography in both near and far side of the Moon and prepare a 3-dimensional atlas with high spatial and altitude resolution. The TMC will image in the panchromatic spectral region of 0.5 to 0.85 µm with a spatial/ ground resolution of 5m, 10 bit quantization and swath coverage of 20 Km.


Hyper Spectral Imager (HySI)
To obtain spectroscopic data for mineralogical mapping of the lunar surface in 32 contiguous bands in the Very Near Infra Red (VNIR) spectral range of 0.4-0.95µm region with a spectral resolution of better than 15nm and spatial resolution of 80m with swath coverage of 20Km. The data from this instrument will help in improving the available information on mineral composition of the lunar surface.

Lunar Laser Ranging Instrument (LLRI)
For determination of accurate altitude of the spacecraft above the lunar surface, determine the global topographical field of the Moon obtain an improved model for the lunar gravity field and supplement the data from terrain mapping camera and hyper-spectral imager payloads. A coherent pulse of light at 1064 nm wavelength and pulse width of 10 ns is transmitted and its echo is received back from the lunar surface.

High Energy X-ray Spectrometer (HEX)
The High-Energy X-ray spectrometer covers the hard X-ray region from about 30 keV to about 250 keV. This is the first experiment to carry out spectral studies of planetary surface at hard X-ray energies using good energy resolution detectors. The geometric detector area of 144 cm2 is realized by cascading nine Cadmium Zinc Telluride (CZT) arrays, each 4 cm x 4 cm (5mm thick), composed of 256 (16x16) pixels (size: 2.5 mm x 2.5 mm).

Moon Impact Probe(MIP)
The impact probe weighing 29 kg will be released at a predetermined time after the orbiter reaches the final 100km orbit to impact at a pre-selected location. The dimension of the impact probe is 375 mm x 375 mm x 470 mm

There are three major payloads in the Moon Impact Probe

Radar Altimeter - for measurement of altitude of the Probe above the lunar surface. The operating frequency band is 4.3 GHz ± 100 MHz

Video Imaging System - for acquiring images of the surface of moon from the descending probe using analog CCD camera along with a video decoder

Mass Spectrometer - A state-of-the-art Quadrupole mass spectrometer with a mass resolution of 0.5 amu and sensitive to partial pressure of the order of 10-15 torr for measuring the constituents of tenuous lunar atmosphere during descent.

B) Payloads from other organizations :
Chandrayaan-1 X-ray Spectrometer (C1XS)
Realized through ESA with collaboration between Rutherford Appleton Laboratory, UK and ISRO Satellite Centre, ISRO.
Part of this payload is redesigned by ISRO to suit Chandrayaan-1 scientific objectives. The primary goal of the C1XS instrument is to carry out high quality X-ray spectroscopic mapping of the Moon, in order to constrain key questions on the origin and evolution of the Moon. C1XS would use X-ray fluorescence technique (1.0-10 keV) for measuring elemental abundance of Mg, Al, Si, Ca, Fe, Ti distributed over the surface of the Moon.

Near-IR Spectrometer (SIR-2)
SIR-2 is developed by the Max-Plank-Institute for Solar System Science, through the Max-Plank Society, Germany and ESA.
It collects the Sun’s light reflected by the Moon with the help of a main and secondary mirror which hits a grating. The intensity of light dispersed by the grating is measured at the differentwavelengths. The wavelength range covered by the spectrometer is 0.93-2.4 µm with spectral resolution 6nm. Used to study detail the lunar surface in various geological/mineralogical and topographical units, vertical distribution of crustal material, crater formation on the Moon, Survey mineral lunar resources etc.

Sub Kev Atom reflecting Analyser (SARA)
SARA is realized through ESA, in collaboration with Swedish Institute of Space Physics, Sweden and Space Physics Laboratory, Vikram Sarabhai Space Centre, ISRO. SARA consists of three units viz. SARA neutral atom sensor CENA (Chandrayan-1 Energetic Neutrals Analyzer), SARA solar wind monitor SWIM (Solar WInd Monitor), and SARA DPU (Digital Processing Unit).
It will image the Moon surface using low energy neutral atoms as diagnostics in the energy range 10eV-2keV. The SARA instrument is designed to detect with sufficient angular and mass resolution the atomic particles which leave the surface mostly as neutral atoms leading to studies in space weathering of Moon’s surface.

Radiation Dose Monitor Experiment ( RADOM )
RADOM Payload is from Bulgarian Academy of Sciences. It is a miniature spectrometer-dosimeter containing one semiconductor detector of 0.3mm thickness, one charge-sensitive preamplifier and two micro controllers. It will qualitatively and quantitatively characterize, in terms of particle flux, dose rate and deposited energy spectrum, the radiation environment in near moon space.

Miniature Synthetic Aperture Radar (MiniSAR)
MiniSAR payload is from Applied Physics Laboratory, Johns Hopkins University and Naval Air Warfare Centre, USA through NASA. The mini-SAR system will transmit Right Circular Polarization (RCP) and receive both Left Circular Polarization (LCP) and RCP. It operates in two modes, as a scatterometer and as a radiometer.
In scatterometer mode, the system will measure the RCP and LCP response in the altimetry footprint along the nadir ground-track.
In radiometer mode, the system will measure the surface RF emissivity, allowing a determination of the near normal incidence Fresnel reflectivity.
The synthetic aperture radar system works at a frequency 2.38 GHz with a resolution of 75m per pixel and weighs 6.5kg.

MOON MINERALOGY MAPPER (M3)
Moon Mineralogy Mapper (M3) payload is from Brown University and Jet Propulsion Laboratory, USA through NASA. The M3 scientific instrument is a high throughput push broom imaging spectrometer operating in 0.7 to 3.0 µ m range. It measures solar reflected energy using a two-dimensional HgCdTe detector array. The primary Science goal of M3 is to characterize and map lunar surface mineralogy in the context of lunar geologic evolution. This will improve the understanding of the early evolution of a differentiated planetary body and also provide a high-resolution assessment of lunar resources.


Offline s^3

  • Full Member
  • *
  • Posts: 105
  • Hyderabad
    • My Blogs Summary
  • Liked: 24
  • Likes Given: 5
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #2 on: 12/10/2007 04:58 AM »
A new Deep Space Networking ( DSN ) antenna with a 32M dia main reflector and 3.2M subreflector has been installed and is under commissioning at Byalalu near Bangalore. This will be used for Chandrayaan-1. It has a capability to transmit/receive both S and X band signals from probes sent to other planets etc. It uses beam waveguide technology for transporting the signals between feed and fixed receiver on ground avoiding thereby rotory joints.

 link :       http://www.ecil.co.in/32mtrsantenna.pdf


=============
S^3

Offline eeergo

  • Phystronaut
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 4615
  • Milan, Italy; Spain; Virginia
  • Liked: 376
  • Likes Given: 311
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #3 on: 01/01/2008 07:42 PM »
I think this hasn't appeared anywhere before, and frankly I'm quite surprised that a roving vehicule hasn't made any headlines until four months before launch!

http://www.hinduonnet.com/fline/stories/20080118509510900.htm

If it works, it'll be a great extra :)
-DaviD-

Online hop

  • Senior Member
  • *****
  • Posts: 3139
  • Liked: 341
  • Likes Given: 655
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #4 on: 01/01/2008 10:46 PM »
Quote
eeergo - 1/1/2008  12:42 PM

I think this hasn't appeared anywhere before, and frankly I'm quite surprised that a roving vehicule hasn't made any headlines until four months before launch!
According to the article, the rover is on Chandrayaan-2, which is slated for 2011 or 2012.

Offline eeergo

  • Phystronaut
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 4615
  • Milan, Italy; Spain; Virginia
  • Liked: 376
  • Likes Given: 311
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #5 on: 01/01/2008 10:53 PM »
You're completely right, I wasn't aware of the existence of a second probe, and I somehow skipped the '-2' part. Something else to look forward to, albeit a little farther ahead...
-DaviD-

Offline ckiki lwai

  • Aerospace engineering student
  • Full Member
  • ****
  • Posts: 834
  • Europe, Belgium
  • Liked: 1
  • Likes Given: 0
RE: Chandrayan - 1 .. Indian mission for Moon
« Reply #6 on: 01/11/2008 07:28 PM »
An article from ESA about the mission:
http://www.esa.int/esaSC/SEM6563MDAF_index_0.html

Quote from the article:
"Chandrayaan will produce maps with a resolution of between 5 and 10 m across the whole surface of the Moon. “We aim to have this in two years,” says Koschny."

That's nice:
Diameter Apollo lunar descent stage: 4.2m!
Could this be large enough for Chandrayan to spot?
If so, I'm curious how the conspiracy theorists will explain India's involvement in the complot! :bleh:
Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events. - Robert Heinlein

Offline s^3

  • Full Member
  • *
  • Posts: 105
  • Hyderabad
    • My Blogs Summary
  • Liked: 24
  • Likes Given: 5
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #7 on: 01/15/2008 05:28 AM »
We may not be able to conclude or even detect the presense of Apollo descent stage which is 4.2M in dia  with a 5 M resolution of TMC instrument.

We may see a couple of pixcels with a different radiometric properties than the surrounding area but the shape of the object can't be  determined.

Chinese probe which is launched recently may be able to do the job with 1M res.

=
S^3

Offline Satori

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 12169
  • Braga - Portugal
    • Em Órbita
  • Liked: 322
  • Likes Given: 218
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #8 on: 02/13/2008 08:18 PM »
The launch of India's Moon mission is delayed to June or July due to technical problems.

Offline m.prasad

  • Member
  • Posts: 91
  • Liked: 5
  • Likes Given: 0
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #9 on: 05/28/2008 02:13 PM »
Hi folks,
Have one doubt on the instuments. Both the instruments HySI & M3 do the Moon minerology mapping. Similarly, for X rays mapping 2 instruments -  HEX, C1XS are being sent.

If both the instruments are doing same type of work, then itz duplication of the work. right? But actually it is not.

Then in what ways these instruments are different? I guess itz in the spectral\enrgy bands in which they operate.

Thanks
Prasad MVL

Offline anik

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 7367
  • Liked: 345
  • Likes Given: 283
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #10 on: 05/30/2008 03:02 PM »
http://www.moondaily.com/reports/India_To_Launch_First_Lunar_By_Year_End_999.html

"The Indian Space Research Organisation (ISRO) plans to launch its first unmanned moon mission, Chandrayan-I, between October and December, a top official said yesterday [May 27 - anik] in Kolkata"

Offline hesidu

  • Full Member
  • *
  • Posts: 158
  • Liked: 0
  • Likes Given: 0
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #11 on: 05/31/2008 01:52 AM »
Is that means the launch delayed again ?
Any explanation was given ?
« Last Edit: 05/31/2008 01:53 AM by hesidu »

Offline Satori

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 12169
  • Braga - Portugal
    • Em Órbita
  • Liked: 322
  • Likes Given: 218
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #12 on: 06/15/2008 01:30 PM »
According to The Hindu the launch of Chandrayaan-1 could take place on September 19th.

Offline s^3

  • Full Member
  • *
  • Posts: 105
  • Hyderabad
    • My Blogs Summary
  • Liked: 24
  • Likes Given: 5
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #13 on: 07/13/2008 04:18 PM »
Latest authentic info from Kasturirangan on Chandrayan mission

http://www.cat.gov.in/happenings/fdaykkr.pdf

Offline Satori

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 12169
  • Braga - Portugal
    • Em Órbita
  • Liked: 322
  • Likes Given: 218
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #14 on: 08/06/2008 11:32 PM »
The launch of Chandrayaan-1 can be delayed to October according to The Times of India.

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 314
  • Liked: 13
  • Likes Given: 4
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #15 on: 08/10/2008 04:20 AM »
yes, the launch has been postponed...if it's delayed further a launch during november-december is very difficult as it is rainy season here at sriharikota.

1. Accoring to reports the first stage has been stacked on the launch pad. ISRO faced difficulty in putting this rocket on first launch pad as the nozzle of the engine was getting blocked. So, this means that SLP willl not be vacant for a GSLV-D3 launch this year.

2. The delay is being attributed to some problems with the second stage. As far as my knowledge goes this is probably the 4th flight facing problem with second stage. Earlier PSLV C9,C10, GSLV F04 faced similar problems...all due to some faulty gas chamber.(no sufficient evidence to prove that the same problem haunted the engine...clear reason yet unknown but the problem is of that 2nd stage)

3. If all goes well, we can expect a end-october launch.

hoping for the best....

Offline William Graham

  • Senior Member
  • *****
  • Posts: 3987
  • Liked: 71
  • Likes Given: 35
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #16 on: 09/11/2008 04:24 PM »
Launch is NET 22 October, the window extends until 26 October, according to:

http://www.ptinews.com/pti%5Cptisite.nsf/0/27F32ADF6B7F47F7652574C1004D74D7?OpenDocument

Online jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 16477
  • Houten, The Netherlands
  • Liked: 2305
  • Likes Given: 142
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #17 on: 09/25/2008 12:12 PM »
Europe all set for lunar mission Chandrayaan-1

25 September 2008

Europe is participating in a big way in the Indian Space Agency's Chandrayaan-1 mission to the Moon, by contributing three instruments. All these instruments have now been delivered, tested and integrated with the spacecraft.

http://www.esa.int/esaCP/SEMM0RQ4KKF_index_0.html

Offline anik

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 7367
  • Liked: 345
  • Likes Given: 283
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #18 on: 10/04/2008 06:11 AM »
Chandrayaan-I on way to integration with launch rocket PSLV-C11 news
03 October 2008

http://www.domain-b.com/aero/space/spacemissions/20081003_chandrayaan-I.html 

"Bangalore: India's lunar probe, Chandrayaan I, has begun its ground journey to Sriharikota Range (SHAR) to be integrated with its launch rocket, the Polar Satellite Launch Vehicle-C11. At SHAR, the lunar orbiter will begin its 50-hour pre-launch countdown on the night of 19 October. Chandrayaan is expected to complete its journey to SHAR in a day or two"

Offline orvillewright

  • Member
  • Posts: 6
  • Liked: 0
  • Likes Given: 0
Re: Chandrayan - 1 .. Indian mission for Moon
« Reply #19 on: 10/06/2008 08:29 PM »
I'm confused.  Is PSLV-C11 going to stack on the North pad, or roll out to the South pad from the VAB?

Tags: