Tonight is going to be the culmination of the various baby steps MOM has been taking by gradually soaring to higher apogees around Mother Earth. This manoeuver, scheduled at 01:27 hrs IST, will take the spacecraft to - almost half the way to moon - about two lakh kilometers [200,000 km].
440N Liquid Engine completed firing successfully to raise the apogee to about 1.92 lakh km in this 5th Manoeuver
The 400N LAM engine uses hypergolic fuel (Monomethylhydrazine fuel and Mixed Oxides of Nitrogen). Is this a commonly used fuel for on board satellite navigation motors? Are there other fuels that offer similar performance/benefit profile? Could ISRO instead have used other fuels?
Does anyone know how much fuel a craft has to burn to attain a certain amount of velocity?
according to http://www.zarya.info/Calendar.php the perigee will be further reduced in tonight's burn
latest facebook updateQuote440N Liquid Engine completed firing successfully to raise the apogee to about 1.92 lakh km in this 5th Manoeuver
It is really very interesting how ISRO has gone about this mission. It has certainly made me think about the subject in a more comprehensive manner than before.While not trivializing any aspect of rocketry and satellite navigation, this approach also helped demystify the subject and made me even more curious about science & technology. And I am just an enthusiast. If this mission has managed to inspire 100 smart students (which I am sure it already did), this mission is already a success!! Way to go and really impressive!The 400N LAM engine uses hypergolic fuel (Monomethylhydrazine fuel and Mixed Oxides of Nitrogen). Is this a commonly used fuel for on board satellite navigation motors? Are there other fuels that offer similar performance/benefit profile? Could ISRO instead have used other fuels?Does anyone know how much fuel a craft has to burn to attain a certain amount of velocity?How much weight does fuel and associated storage and delivery mechanisms contribute to the overall weight of the craft?Thinking wildly here .. would it be possible to "throw" MOM over to Jupiter and further if and when the Mars mission is completed? (assuming there is enough fuel to navigate/control attitude/altitude)Or how about to Venus? By hopping off Earth's and Sun gravity?Your insight would be appreciated!
The fifth orbit raising Manoeuver of ISRO's Mars Orbiter Mission Spacecraft, starting at 01:27 hrs (IST) on Nov 16, 2013, with a burn Time of 243 seconds, and incremental velocity of 101.55 m/s has been successfully completed.The observed change in Apogee is from 118642 km to 192874 km.
Quote from: cave_dweller on 11/15/2013 06:25 pmIt is really very interesting how ISRO has gone about this mission. It has certainly made me think about the subject in a more comprehensive manner than before.While not trivializing any aspect of rocketry and satellite navigation, this approach also helped demystify the subject and made me even more curious about science & technology. And I am just an enthusiast. If this mission has managed to inspire 100 smart students (which I am sure it already did), this mission is already a success!! Way to go and really impressive!The 400N LAM engine uses hypergolic fuel (Monomethylhydrazine fuel and Mixed Oxides of Nitrogen). Is this a commonly used fuel for on board satellite navigation motors? Are there other fuels that offer similar performance/benefit profile? Could ISRO instead have used other fuels?Does anyone know how much fuel a craft has to burn to attain a certain amount of velocity?How much weight does fuel and associated storage and delivery mechanisms contribute to the overall weight of the craft?Thinking wildly here .. would it be possible to "throw" MOM over to Jupiter and further if and when the Mars mission is completed? (assuming there is enough fuel to navigate/control attitude/altitude)Or how about to Venus? By hopping off Earth's and Sun gravity?Your insight would be appreciated!WelcomeIf you really want the fuel load and burn details read back page by page. It's all there in great detail not so long ago. Those are indeed wild ideas. Wild to the point of silly. The solar system is an enormous structure. Spacecraft are built for specific purposes. Flitting about is pointless and impractical, most likely impossible. Plus there were already discussions of slightly less-than-impossible ideas like aero-braking for extended missions. As it stands our Indian colleagues are doing remarkable things incredibly fast on extremely lean budgets. These are stellar and thoroughly admirable accomplisments.
assuming there is enough fuel, I wondered if it would be possible to transfer a craft in Martian orbit to a helio centric orbit and then eventually on to another orbit ...
Quote from: cave_dweller on 11/16/2013 05:52 am assuming there is enough fuel, I wondered if it would be possible to transfer a craft in Martian orbit to a helio centric orbit and then eventually on to another orbit ... There isn't enough fuel. Or propellant.
The argument of the perigee of the orbit is now 288.88°
MOM sends a postcard!!First ever pic of Earth taken by Mars Color Camera. More on MOM FB page.https://www.facebook.com/pages/ISROs-Mars-Orbiter-Mission/1384015488503058