PROCYON, Small satellite asteroid flyby launched with Hayabusa 2 |
PROCYON, Small satellite asteroid flyby launched with Hayabusa 2 |
Dec 7 2014, 07:58 PM
Post
#1
|
|
Senior Member Group: Members Posts: 2106 Joined: 13-February 10 From: Ontario Member No.: 5221 |
PROCYON is in the right trajectory too; the initial operations phase has begun.
http://www.spacedaily.com/reports/Flight_S...ROCYON_999.html |
|
|
Apr 10 2015, 03:02 PM
Post
#2
|
|
Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
from this image of the press event, flyby would be on 12 May 2016
http://image.itmedia.co.jp/mn/articles/150...hi_P1300584.jpg there is also a short article here, but with little or no new informations |
|
|
Apr 11 2015, 12:42 AM
Post
#3
|
|
Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Thanks, Paolo and Katodomo
What follows has been extracted from Katodomo's Senews and Paolo's Monoist. Only portions new to me. The target of PROCYON is now set to "2000 DP107" which is a doublet. 800m and 300m. Consequently, PROCYON will not be able to return to near earth orbiut to perform a swingby. So, only chance of asteroid approach. The earth swingby is December 2015 and asteroid passby is May 2016. Norminal mission has been accomplished. Solar pannels are OK, temps are OK, triaxial control is OK. It is very much alive. Ion engine stopped in midMarch 2015, trying to restart, but no indication yet of recovery at the moment. The cause of this has not been identified yet, but the most likely reason is thought to be that minute metal piece has migrated into the gap between the 2 ion grids of the ion source. Therefore, several options have been identified, as follows. 1. Give this grid a thermal cycle of expansion and contraction. 2. Give the probe an acceleration and rotate, stop, rotate, stop etc. 3. Apply high voltage and brun out the meal piece. Theseoptions will be tried carefully. However, the deadline for recovery is currently end April 2015 in time for the earth swingby in December 2015. This deadline is also being re-evaluated for accuracy. In the meantime, geo-corona image aqquisition has been successful. The image has not been made available as theses are being written at the moment. Above are the gists of what are available at the moment. P |
|
|
Lo-Fi Version | Time is now: 26th September 2024 - 12:05 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE 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. |