My Assistant
Site Message
Unmanned Spaceflight.com > All posts by a member| Posted on: Jun 4 2011, 10:56 PM | |
|
Founder  Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 
|
QUOTE (bagelverse @ Jun 4 2011, 03:40 PM)  But if the images is only 13 pixels across, I would rather wait til I can seen something of value, not over interpreted, and then change when we have better pictures. So if the images were available, you would refuse to look at them? And on that basis - should we stop the flow of imagery from Opportunity until we get to the rim of Endeavor crater? |
| Forum: Dawn · Post Preview: #173917 · Replies: 424 · Views: 339529 |
| Posted on: Jun 4 2011, 06:57 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
The second week in June starts in <48hrs Vesta is about 13 pixels across right about now. |
| Forum: Dawn · Post Preview: #173905 · Replies: 424 · Views: 339529 |
| Posted on: Jun 4 2011, 04:02 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (tanjent @ Jun 4 2011, 07:56 AM) Whatever happens here, the Ceres visit will probably offer the best public showcase for robotic space travel since Voyager. It's impossible to draw comparisons between missions in that way. One could argue MER is the best showcase for robotic space exploration. Or Cassini. Or any number of missions. The crime here is that there are ever increasingly great images of this unexplored world being taken but not being shared with the public - it is an exquisit opportunity to engage and inspire the public....and for whatever reason they're forgoing that opportunity and revert to old-school media policy. |
| Forum: Dawn · Post Preview: #173900 · Replies: 424 · Views: 339529 |
| Posted on: Jun 4 2011, 03:10 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (Juramike @ Jun 4 2011, 07:03 AM) Currently, the images are only being used for navigation." I don't believe for one second that they are only taking starfield like Nav imagery, now their resolving power at Vesta is matching and hereafter exceed Hubble. |
| Forum: Dawn · Post Preview: #173897 · Replies: 424 · Views: 339529 |
| Posted on: Jun 4 2011, 02:51 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Then get worried - that's right about now. |
| Forum: Dawn · Post Preview: #173895 · Replies: 424 · Views: 339529 |
| Posted on: Jun 4 2011, 07:29 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
The peak deceleration for MSL is higher than for Apollo - that much I'm fairly sure of. |
| Forum: MSL · Post Preview: #173885 · Replies: 414 · Views: 203792 |
| Posted on: Jun 3 2011, 08:06 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Not sure I understand your question. |
| Forum: MSL · Post Preview: #173870 · Replies: 414 · Views: 203792 |
| Posted on: Jun 2 2011, 03:24 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
For an average car manufacturers warranty to match, it would have to be something like a 140 year, 3 million mile guarantee. |
| Forum: Opportunity · Post Preview: #173826 · Replies: 1559 · Views: 801287 |
| Posted on: Jun 2 2011, 01:45 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Marketing and Outreach are not the same. There is some marketing within the best practices of Media Relations, but that's not outreach either. This isn't a case of trying to 'sell' something. We're already sold. What we want now is the product to be delivered. We've already paid for it. |
| Forum: Dawn · Post Preview: #173820 · Replies: 424 · Views: 339529 |
| Posted on: Jun 2 2011, 04:44 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (Greg Hullender @ Jun 1 2011, 09:26 PM) . I have lots of sympathy for planners on the Dawn team who might be taken by surprise. I can not possibly believe for a single second that the entire project is taken by surprise that the public might want to see the pictures they've paid for in a timely fashion. MER had been releasing images for 3.5 yrs and Cassini for 3, when Dawn LAUNCHED. There is no surprise here. Just a lack of images. |
| Forum: Dawn · Post Preview: #173802 · Replies: 424 · Views: 339529 |
| Posted on: Jun 2 2011, 12:19 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Right now it's like OSIRIS on Rosetta. Uwe Keller is involved in both. |
| Forum: Dawn · Post Preview: #173790 · Replies: 424 · Views: 339529 |
| Posted on: May 31 2011, 03:29 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (CosmicRocker @ May 30 2011, 10:04 PM) I can't help but wonder how the team targeted this outcrop. Easy - use the last two drives before the Memorial Day weekend to arrive at the 'next' piece of outcrop. Stop. Do science for 3 days. |
| Forum: Opportunity · Post Preview: #173739 · Replies: 1559 · Views: 801287 |
| Posted on: May 30 2011, 04:41 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
I could believe a heading of 310 deg. They do fine calibration of the IMU on a regular basis - (normally cited as a 'QFE' I believe) - and I'm sure one would have occurred very close to the final location. |
| Forum: Tech, General and Imagery · Post Preview: #173702 · Replies: 21 · Views: 25676 |
| Posted on: May 28 2011, 04:27 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
The PDS label label for just about every image, I think, includes a lot of orientation data. It's huge - but here's a segment of it CODE ...... ROVER_MOTION_COUNTER = (138, 1230, 11, 148, 221) ROVER_MOTION_COUNTER_NAME = (SITE, DRIVE, IDD, PMA, HGA) ..... /* COORDINATE SYSTEM STATE: ROVER */ GROUP = ROVER_COORDINATE_SYSTEM COORDINATE_SYSTEM_INDEX = (138, 1230, 11, 148, 221) COORDINATE_SYSTEM_INDEX_NAME = (SITE, DRIVE, IDD, PMA, HGA) COORDINATE_SYSTEM_NAME = ROVER_FRAME ORIGIN_OFFSET_VECTOR = (-0.227241, 0.177903, 0.0358358) ORIGIN_ROTATION_QUATERNION = (0.885949, -0.169903, 0.00321267, -0.431529) POSITIVE_AZIMUTH_DIRECTION = CLOCKWISE POSITIVE_ELEVATION_DIRECTION = UP QUATERNION_MEASUREMENT_METHOD = COARSE REFERENCE_COORD_SYSTEM_INDEX = 138 REFERENCE_COORD_SYSTEM_NAME = SITE_FRAME END_GROUP = ROVER_COORDINATE_SYSTEM /* COORDINATE SYSTEM STATE: INSTRUMENT DEPLOYMENT DEVICE */ GROUP = IDD_COORDINATE_SYSTEM COORDINATE_SYSTEM_INDEX = (138, 1230, 11, 148, 221) COORDINATE_SYSTEM_INDEX_NAME = (SITE, DRIVE, IDD, PMA, HGA) COORDINATE_SYSTEM_NAME = MI_FRAME ORIGIN_OFFSET_VECTOR = (0.998908, -0.112816, -0.124504) ORIGIN_ROTATION_QUATERNION = (0.559273, -0.497552, -0.443273, 0.493117) POSITIVE_AZIMUTH_DIRECTION = CLOCKWISE POSITIVE_ELEVATION_DIRECTION = DOWN REFERENCE_COORD_SYSTEM_INDEX = (138, 1230, 11, 148, 221) REFERENCE_COORD_SYSTEM_NAME = ROVER_FRAME END_GROUP = IDD_COORDINATE_SYSTEM /* ARTICULATION DEVICE STATE: PANCAM MAST ASSEMBLY */ GROUP = PMA_ARTICULATION_STATE ARTICULATION_DEVICE_ID = "PMA" ARTICULATION_DEVICE_NAME = "PANCAM MAST ASSEMBLY" ARTICULATION_DEVICE_ANGLE = (0.553583 <rad>, 0.69753 <rad>, 0.553568 <rad>, 0.69766 <rad>, 1.21798 <rad>, -0.296728 <rad>) ARTICULATION_DEVICE_ANGLE_NAME = ("AZIMUTH-MEASURED", "ELEVATION-MEASURED", "AZIMUTH-REQUESTED", "ELEVATION-REQUESTED", "AZIMUTH-INITIAL", "ELEVATION-INITIAL") ARTICULATION_DEVICE_MODE = DEPLOYED END_GROUP = PMA_ARTICULATION_STATE /* ARTICULATION DEVICE STATE: HIGH GAIN ANTENNA */ GROUP = HGA_ARTICULATION_STATE ARTICULATION_DEVICE_ID = "HGA" ARTICULATION_DEVICE_NAME = "HIGH GAIN ANTENNA" ARTICULATION_DEVICE_ANGLE = (2.88001 <rad>, 0.0198442 <rad>) ARTICULATION_DEVICE_ANGLE_NAME = (AZIMUTH, ELEVATION) END_GROUP = HGA_ARTICULATION_STATE /* ARTICULATION DEVICE STATE: FILTER */ GROUP = FILTER_ARTICULATION_STATE ARTICULATION_DEVICE_ID = "FILTER" ARTICULATION_DEVICE_NAME = "FILTER ACTUATORS" ARTICULATION_DEV_POSITION = (8, 8, 1) ARTICULATION_DEV_POSITION_ID = ("PANCAM_L8_440NM_SOL_ND5", "PANCAM_R8_880NM_SOL_ND5", "MI_CLOSED") ARTICULATION_DEV_POSITION_NAME = ("LEFT PANCAM FILTER", "RIGHT PANCAM FILTER", "MI DUST COVER") END_GROUP = FILTER_ARTICULATION_STATE /* ARTICULATION DEVICE STATE: INSTRUMENT DEPLOYMENT DEVICE */ GROUP = IDD_ARTICULATION_STATE ARTICULATION_DEVICE_ID = "IDD" ARTICULATION_DEVICE_NAME = "INSTRUMENT DEPLOYMENT DEVICE" ARTICULATION_DEVICE_ANGLE = (-0.118184 <rad>, -0.899982 <rad>, 1.53029 <rad>, 2.38935 <rad>, 1.5708 <rad>, -0.126481 <rad>, -0.903681 <rad>, 1.53503 <rad>, 2.38834 <rad>, 1.516 <rad>) ARTICULATION_DEVICE_ANGLE_NAME = ("JOINT 1 AZIMUTH-ENCODER", "JOINT 2 ELEVATION-ENCODER", "JOINT 3 ELBOW-ENCODER", "JOINT 4 WRIST-ENCODER", "JOINT 5 TURRET-ENCODER", "JOINT 1 AZIMUTH-POTENTIOMETER", "JOINT 2 ELEVATION-POTENTIOMETER", "JOINT 3 ELBOW-POTENTIOMETER", "JOINT 4 WRIST-POTENTIOMETER", "JOINT 5 TURRET-POTENTIOMETER") ARTICULATION_DEVICE_MODE = "FREE SPACE" ARTICULATION_DEVICE_TEMP = (-23.8068 <degC>, -14.6212 <degC>) ARTICULATION_DEVICE_TEMP_NAME = ("AZIMUTH JOINT 1", "TURRET JOINT 5") ARTICULATION_DEV_VECTOR = (0.140944, -0.303824, 0.942245) ARTICULATION_DEV_INSTRUMENT_ID = "MI" ARTICULATION_DEV_VECTOR_NAME = GRAVITY CONTACT_SENSOR_STATE = ("NO CONTACT", "NO CONTACT", CONTACT, CONTACT, "NO CONTACT", "NO CONTACT", OPEN, "NO CONTACT") CONTACT_SENSOR_STATE_NAME = ("MI SWITCH 1", "MI SWITCH 2", "RAT SWITCH 1", "RAT SWITCH 2", "MB SWITCH 1", "MB SWITCH 2", "APXS DOOR SWITCH", "APXS CONTACT SWITCH") END_GROUP = IDD_ARTICULATION_STATE /* COORDINATE SYSTEM STATE: PANCAM MAST ASSEMBLY */ GROUP = PMA_COORDINATE_SYSTEM COORDINATE_SYSTEM_INDEX = (138, 1230, 11, 148, 221) COORDINATE_SYSTEM_INDEX_NAME = (SITE, DRIVE, IDD, PMA, HGA) COORDINATE_SYSTEM_NAME = MAST_FRAME ORIGIN_OFFSET_VECTOR = (0.45781, 0.02779, -1.09668) ORIGIN_ROTATION_QUATERNION = (0.894388, -0.100912, 0.35272, 0.255881) POSITIVE_AZIMUTH_DIRECTION = CLOCKWISE POSITIVE_ELEVATION_DIRECTION = UP REFERENCE_COORD_SYSTEM_INDEX = (138, 1230, 11, 148, 221) REFERENCE_COORD_SYSTEM_NAME = ROVER_FRAME END_GROUP = PMA_COORDINATE_SYSTEM /* ARTICULATION DEVICE STATE: MOBILITY CHASSIS */ GROUP = CHASSIS_ARTICULATION_STATE ARTICULATION_DEVICE_ID = "CHASSIS" ARTICULATION_DEVICE_NAME = "MOBILITY CHASSIS" ARTICULATION_DEVICE_ANGLE = (-0.0120352 <rad>, 0.00844853 <rad>, -0.0256182 <rad>, -0.0516135 <rad>, -0.382922 <rad>, -0.459977 <rad>, 0.158197 <rad>) ARTICULATION_DEVICE_ANGLE_NAME = ("LEFT FRONT WHEEL POTENTIOMETER", "RIGHT FRONT WHEEL POTENTIOMETER", "LEFT REAR WHEEL POTENTIOMETER", "RIGHT REAR WHEEL POTENTIOMETER", "LEFT BOGIE POTENTIOMETER", "RIGHT BOGIE POTENTIOMETER", "DIFFERENTIAL BOGIE POTENTIOMETER") ARTICULATION_DEVICE_MODE = DEPLOYED END_GROUP = CHASSIS_ARTICULATION_STATE .... /* DERIVED GEOMETRY DATA ELEMENTS: ROVER FRAME */ GROUP = ROVER_DERIVED_GEOMETRY_PARMS INSTRUMENT_AZIMUTH = 31.9313 <deg> INSTRUMENT_ELEVATION = 43.0455 <deg> REFERENCE_COORD_SYSTEM_INDEX = (138, 1230, 11, 148, 221) REFERENCE_COORD_SYSTEM_NAME = ROVER_FRAME END_GROUP = ROVER_DERIVED_GEOMETRY_PARMS /* DERIVED GEOMETRY DATA ELEMENTS: SITE FRAME */ GROUP = SITE_DERIVED_GEOMETRY_PARMS INSTRUMENT_AZIMUTH = -38.2947 <deg> INSTRUMENT_ELEVATION = 42.3127 <deg> REFERENCE_COORD_SYSTEM_INDEX = 138 REFERENCE_COORD_SYSTEM_NAME = SITE_FRAME SOLAR_AZIMUTH = 326.775 <deg> SOLAR_ELEVATION = 45.0107 <deg> END_GROUP = SITE_DERIVED_GEOMETRY_PARMS That basically includes the complete 'state' of the vehicle. IDD, PMA, Wheels, Chassis, suspension...everything. |
| Forum: Tech, General and Imagery · Post Preview: #173651 · Replies: 21 · Views: 25676 |
| Posted on: May 27 2011, 03:14 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Yup - looks quite Vuggy. |
| Forum: Opportunity · Post Preview: #173619 · Replies: 1559 · Views: 801287 |
| Posted on: May 27 2011, 01:33 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
It wasn't when the thread started. Shall we go back through every single thread title and sub title to reflect the now defunct nature of Spirit? No. |
| Forum: Tech, General and Imagery · Post Preview: #173615 · Replies: 357 · Views: 359489 |
| Posted on: May 26 2011, 09:39 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (climber @ May 26 2011, 01:52 PM) or coincidence since the places are so differents? What's coincidental about two near identical rovers with identical cameras and identical communications systems taking the same number of images, on average? |
| Forum: Tech, General and Imagery · Post Preview: #173602 · Replies: 357 · Views: 359489 |
| Posted on: May 26 2011, 01:33 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Look at the animation. It quite clearly has conventional chemical prop. The delta V requirements are not huge - this asteroid's orbit is really remarkably similar to the Earths. It's just a timing issue that defines the mission duration. |
| Forum: OSIRIS-REx · Post Preview: #173585 · Replies: 70 · Views: 177588 |
| Posted on: May 25 2011, 08:08 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (charborob @ May 25 2011, 11:13 AM) If the word "Planetary" in "New Planetary Science Mission" is to be taken literally, then it must mean a Venus mission, since neither the Moon nor an asteroid are considered planets. Planetary is essentially solar system exploration. You can play a semantics game if you like - but that's what it is. Discovery program missions to comets, asteroids, moon, mars and elsewhere are all 'Planetary' in the budget. |
| Forum: Exploration Strategy · Post Preview: #173546 · Replies: 145 · Views: 312255 |
| Posted on: May 25 2011, 02:34 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (Drkskywxlt @ May 25 2011, 07:07 AM) Anybody know if MSL will still be at JPL in early August or already shipped to the Cape? Already at the Cape. You'll miss it by a couple of weeks. |
| Forum: MSL · Post Preview: #173528 · Replies: 414 · Views: 203792 |
| Posted on: May 24 2011, 11:40 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
After review, it was decided that the likelihood of that being successful wasn't sufficiently high to keep asking for time on the assets required. |
| Forum: Spirit · Post Preview: #173494 · Replies: 66 · Views: 136054 |
| Posted on: May 24 2011, 11:28 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
I've been pondering the words that best describe what's happened. Spirit is just a robot. A bunch of thinking metal sent from Earth (as Scott would say). The adventure, the personality, the achievements - they are because of the team of scientists and engineers who designed, built, tested, launch, landed and drove her. She is their avatar. Every image she ever took. Every cm she ever drove. Every RAT brush, grind, APXS or Mossbauer integration. Every scuff, turn, bump, beep and approach. They were all the result of a carefully crafted set of instructions running on a carefully crafted spacecraft built onthis rock and then sent to that rock. So yes - our little robot has gone silent. But what made her, the essence of what she is.....is still right here on this rock, driving Opportunity, testing Curiosity, or analyzing spectra from 6 years of Gusev exploration. She didn't die. She just moved on. |
| Forum: Spirit · Post Preview: #173491 · Replies: 66 · Views: 136054 |
| Posted on: May 24 2011, 04:00 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
As yet, no. For those who've not seen it : http://www.aviationweek.com/aw/generic/sto...p;channel=space QUOTE Experts are examining the backshell for the Mars Science Laboratory, which was improperly lifted at Kennedy Space Center (KSC) last week, NASA says.... An agency spokesman said the damage to the backshell did not appear to be serious....Nonetheless, until the exact nature of the damage is determined, the incident raises concerns within the Science Mission Directorate that the launch might not be able to occur in the 2011 planetary window |
| Forum: MSL · Post Preview: #173452 · Replies: 414 · Views: 203792 |
| Posted on: May 23 2011, 08:55 PM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
Call the public services office - explain your situation - http://www.jpl.nasa.gov/events/tours/views/index.cfm - they may well be able to tag you on to a group tour that's already booked. There is a visitors center, but it's behind the security apart from Von Karman lecture series events. |
| Forum: Chit Chat · Post Preview: #173429 · Replies: 3 · Views: 4685 |
| Posted on: May 23 2011, 02:08 AM | |
|
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1
|
QUOTE (ElkGroveDan @ May 21 2011, 05:09 PM) My understanding is that it WILL be decided before launch but that there is also an ability to re-target the landing site in-flight Yup - by the 3rd landing site meeting, they had established that they could target any site between 30N and 30S by targeting at TCM1. |
| Forum: MSL · Post Preview: #173409 · Replies: 177 · Views: 205349 |
 New Replies No New Replies Hot Topic (New) Hot Topic (No New) |
 Poll (New) Poll (No New) Locked Topic Moved Topic |
|
Lo-Fi Version | Time is now: 17th December 2024 - 06:19 AM |
|
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. |
|
