I think MoM heard you and sent a LOT of pics!SaiK wrote:hello mom! are you ok?
http://timesofindia.indiatimes.com/indi ... 453692.cms
http://timesofindia.indiatimes.com/home ... 474895.cms
I think MoM heard you and sent a LOT of pics!SaiK wrote:hello mom! are you ok?
As I commented some time ago (while discussion was going on about -"how long the fuel was enough etc") one does not require fuel just to stay in an orbit.. IOW even if all the fuel gone, the craft can remain in orbit for a long time (as in thousands of years).But all subsystem are still working fine and we have a fuel of 39 kilograms still remaining. So it can last for a long time,” the said of ISRO said emphasising that the MoM could survive for “years” in the Martian orbit.
Fuel is required to maintain the attidude of the s/c. Once attitude is lost, meaning full science will not be possible, also communication will be diffficult if not impossible.Amber G. wrote:^^^As I commented some time ago (while discussion was going on about -"how long the fuel was enough etc") one does not require fuel just to stay in an orbit.. IOW even if all the fuel gone, the craft can remain in orbit for a long time (as in thousands of years).But all subsystem are still working fine and we have a fuel of 39 kilograms still remaining. So it can last for a long time,” the said of ISRO said emphasising that the MoM could survive for “years” in the Martian orbit.
(The useful life where equipments are working to transmit data is ,of course much shorter, and fuel is required if a change in orbit is to be made)
And hopefully they have learnt from Chandrayaan-1 when they got scooped out by NASA on the water-on-moon results.chaanakya wrote:looks like they are not revealing everything that they are getting from MOM.
As said, Yes, the "operational"/useful life is much shorter.. due to various factors..juvva wrote:Fuel is required to maintain the attidude of the s/c. Once attitude is lost, meaning full science will not be possible, also communication will be diffficult if not impossible.Amber G. wrote:^^^>>>But all subsystem are still working fine and we have a fuel of 39 kilograms still remaining. So it can last for a long time,” the said of ISRO said emphasising that the MoM could survive for “years” in the Martian orbit<<<
As I commented some time ago (while discussion was going on about -"how long the fuel was enough etc") one does not require fuel just to stay in an orbit.. IOW even if all the fuel gone, the craft can remain in orbit for a long time (as in hundreds/thousands of years).
(The useful life where equipments are working to transmit data is ,of course much shorter, and fuel is required if a change in orbit is to be made)
Kanson wrote:Finally some proof that Mars do indeed received the gift MoM from his mother Earth !
So I guess no CTs/nice stories possible for our future generation like Apollo(moon landing) missions and there wont be Transformer and Superman style movies and no time pass for the current generation too!!
US space agency NASA has begun the process of monitoring the orbit paths of its own MAVEN, India’s Mangalyaan, European Mars Express, its own old redundant missions to avoid collision after January 2015 incident....
On Jan. 3, 2015, it was found that two weeks later, MAVEN and MRO (both NASA missions) ...[close came to have a collision )
With an enhanced collision-avoidance process, the Jet Propulsion Laboratory (JPL) of California is now tracking the location of NASA’s Mars Global Surveyor, a 1997 orbiter that is not in operation but poses the danger of collision....
.....
“Previously, collision avoidance was coordinated between the Odyssey and MRO navigation teams,” said Robert Shotwell, Mars Program chief engineer at NASA’s Jet Propulsion Laboratory.
Ruling out any collisions in near future, he said there was less of a possibility as MAVEN’s is highly elliptical orbit, crossing the altitudes of other orbits. “We track all the orbiters much more closely now. There’s still a low probability of needing a manoeuver, but it’s something we need to manage...
If I recall correctly, the instrument which discovered water was a NASA payload. What ISRO missed was an opportunity to do a simultaneous press conference with NASA. The SPL, TVM built instrument did make claims but it came later I think.srin wrote:And hopefully they have learnt from Chandrayaan-1 when they got scooped out by NASA on the water-on-moon results.chaanakya wrote:looks like they are not revealing everything that they are getting from MOM.
http://www.isro.gov.in/mars-orbiter-spa ... round-mars
Mars Orbiter Spacecraft in its 100th Orbit around Mars
India’s Mars Orbiter Spacecraft is in its 100th orbit around Mars today (Start : June 22, 2015 End: June 25, 2015). The spacecraft was designed for a mission life of six months in Mars orbit, which was completed on March 24, 2015. With this, the primary objectives of the Mars Orbiter Mission were realised.
Mars Orbiter spacecraft has outlived its prime mission life and is healthy and operational. The spacecraft, which had earlier entered the ‘blackout phase’ (due to Mars moving behind the Sun from Earth’s perspective), is gradually coming out of that phase. The spacecraft health data is now being received. The current elliptical orbit of Mars Orbiter Spacecraft has a periareion (nearest point to Mars) of 474 km and an apoareion (farthest point to Mars) of 71, 132 km.
The payloads onboard the Spacecraft were last operated in May 2015, and performance of all payloads were satisfactory. Mars Colour Camera (MCC) of the spacecraft had taken 405 frames so far. Operations of all payloads will restart in a few weeks from now.
Image from Mars Colour Camera (MCC), taken on May 09, 2015 at 16:11:23UT at an altitude of 535 km and resolution ~25m. This is the last image taken before going into blackout mode. The image shows the area between Sinai and Lassell craters
Looks like per ISRO, the mission is lasting much more than originally planned - 6 months -- "still about 45 kg of fuel is left; ...we are hardly using the fuel, fuel requirement is very small."But MoM , short of its fuel being used to crash on Mars, will likely to be remain in orbit for a long time. (as in hundreds if not thousands of years - considering the only drag of a thin atmosphere of Mars at that altitude - assuming, of course, I am not making any big error in my calculations.. ).
Yes, one requires fuel, if one wants to change orbit, or even if one wants to point the dish to earth so that it's signals can be picked..
Just for perspective Mariner 9, the first spacecraft to enter the orbit around Mars, sent in 1971 or so, its fuel long gone, deaf and dumb and in the cold darkness, is still orbiting Mars...
http://www.isro.gov.in/sites/default/fi ... 02.mp4.mp4
3D- Visualization of Mars Terrain using Mars Color Camera Images onboard MOM
A fly-through of mars, covering Valles Marineris region was created by Space Application Center (SAC) using Mars Color Camera (MCC) Image. This fly-through takes to hovering around Oudemans, Calydon Fossa, Louros Valles Arima, Ophir and Perrotin features.
Valles Marineris is the largest canyon system about 4000 km long, 200 km wide and 7 km deep. This image also shows Noctis Labyrinthus at bottom left corner of the image. Fracture patterns at the center of Valles Marineris and northern portion of Noctis Labyrinthus are clearly seen.
The Noctis Labyrinthus, located at the western edge of the Valles Marineris Rift System, is a jumbled terrain composed of huge blocks which are heavily fractured. Eroded deposits located in central portion (floor) of Valles Marineris are clearly seen in this image. Regional contacts / fracture pattern running parallel to Valles Marineris, Arima crater located south of Valles Marineris is also seen in this image. Wall of the canyon are also seen.
Images of Valles Marineris and adjoining regions of Mars taken by MCC on board MOM are used in generating the fly-through. The MCC image was captured on November 10, 2014 at an altitude of 16,972 km. The spatial resolution of image is 882 m. The data was corrected by normalizing the radiometry with topographic effects. Subsequently, the image is draped over Planet Mars topography in the region of coverage mentioned above. Topography data has been smoothed for visual appeal.
Mars Digital Elevation Model from Mars Orbiter Laser Altimeter (MOLA) of Mars Global Surveyor mission is used as Topography Source. Mars Digital Image Mosaic from Viking missions is used as background planet texture. The video is generated by DECU, SAC, Ahmedabad.
http://www.isro.gov.in/pslv-c25-mars-or ... era-images
Nice visualization of a canyon 4000 Km long, 200 Km wide and 7 km deep. Imagine the size of the river that created it.
Where's the "Like" button???prashanth wrote: http://www.isro.gov.in/sites/default/fi ... 02.mp4.mp4
http://www.isro.gov.in/pslv-c25-mars-or ... era-images
Nice visualization of a canyon 4000 Km long, 200 Km wide and 7 km deep. Imagine the size of the river that created it.
Its amusing they have used a Hollywood movie theme for background audio.