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djellison
Posted on: Mar 9 2005, 04:01 PM


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QUOTE (MahFL @ Mar 9 2005, 03:55 PM)
I think the etched terrain will be easy to drive over. I also think the rocks will be the same as at Endurance, confirming the whole plain was once wet. Victoria will just be a larger version of Endurance. The huge crater to the bottem right looks shallow so won't be all that interesting to look at imho. Where to next ?

Well - it's going to take about six months to get to Victoria - at which point we'll be on sol 550+

Given that there was 6 months of science in visiting Endurance - I think the same can be said of Victoria

That's sol 700. More than a martian year - back into Autumn and getting on toward winter again

By then - APXS and Mossbauer integrations will take a couple of days at least - so doing science will take a lot longer.

To ask the question 'where next' - is, dare one say it, a little pre-emptive smile.gif

BUT - I'd do new auto-nav code that generates much smaller data volumes and can be used for multiple sols on the trot - I'd get code in there to use MRO as a relay - I'd do a full 14 filter panorama at Victoria with the extra downlink bandwidth, and head WSW - using the new autonav to cover 700m a week smile.gif Get down to a core staf f barely in double digits - get automated data onto the PDS more rapidly - and cover 3km per month minimum. My aim would be to see as many different terrain types as possible to give ground-truths for Orbital Imagery.

http://marsrovers.jpl.nasa.gov/gallery/pre...2A-A0R1_br2.jpg

To that very dark crater + ejecta - looks interesting. Dont ask me where-next after there - I'd probably need therapy if they lasted that long. My answer would probably be "Oh I dont know - send them to bloody Ares Vallis for all I care!"

The tempation at that point would be to comman a drive sequence that writes "EARTHLINGS GO HOME" in the dirt and have it imaged by MRO.


Doug
  Forum: Opportunity · Post Preview: #6297 · Replies: 3597 · Views: 3531676

djellison
Posted on: Mar 9 2005, 01:04 PM


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QUOTE (MahFL @ Mar 9 2005, 12:57 PM)
When the rovers landed I don't think we thought for 1 min that they would travel outside of thier landing elipses. Is the well defined crater north of Victoria in the elipse Endurance crater ?

Yup - when that map was made - they didnt have MOC imagery of Endurance - and so you can see it as a low-res bit just to the right of a high res MOC bit smile.gif

That image also shows how the 'etched' got eaten by Victoria smile.gif

Doug
  Forum: Opportunity · Post Preview: #6289 · Replies: 3597 · Views: 3531676

djellison
Posted on: Mar 9 2005, 12:50 PM


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Vostok Nav

http://mer.rlproject.com/vostok_nav.jpg

If Mars ever has hippies - they'll be dancing round it naked before too long smile.gif

Doug
  Forum: Opportunity · Post Preview: #6287 · Replies: 3597 · Views: 3531676

djellison
Posted on: Mar 9 2005, 12:19 PM


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QUOTE (MahFL @ Mar 9 2005, 11:34 AM)
Looks like another crater in the distance, could it be the larger flatter one before Victoria or Victoria herself, or looking at it more something entirely different lol. ?

http://qt.exploratorium.edu/mars/opportuni...00P1785L0M1.JPG

pancam.gif

That's looking WSW I think - and if you look on this image

http://www.msss.com/mars_images/moc/2004/0...Ellipse_25m.gif ( Endurance is along the centre line - 3/4s the way to the east end )

You can see a crater twice the size of Victoria just outside the ellipse near the centre - it's probably the rim of that we're seing way out there

Doug
  Forum: Opportunity · Post Preview: #6286 · Replies: 3597 · Views: 3531676

djellison
Posted on: Mar 9 2005, 12:01 PM


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Ahh - now that IS amazing - is there any way you could sort out a .wrl or a .3ds or a any other 3d model format of that?

The climb up west spur and around to Larrys Lookout is a very difficult traverse to explain in a lecture with just pictures - and if I could use a 3D model and put the MOC imagery over the top, then I could have a flyaround that shows it much MUCH clearer!

Doug
  Forum: Tech, General and Imagery · Post Preview: #6284 · Replies: 66 · Views: 53540

djellison
Posted on: Mar 9 2005, 10:14 AM


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QUOTE (CosmicRocker @ Mar 9 2005, 03:02 AM)
QUOTE (djellison @ Mar 3 2005, 05:18 AM)
imho - it's a very very erroded crater, much more so than eagle/fram etc - i.e. pre hydrological activity - it'll just be exactly what it appears on the orbital images - a ring of exposed rock perhaps a few CM above the surrounding area with no inner 'dip' or dunes

Doug

You pretty much called it, Doug. wink.gif

I think that deserves a mars bar smile.gif

Doug
  Forum: Opportunity · Post Preview: #6278 · Replies: 3597 · Views: 3531676

djellison
Posted on: Mar 8 2005, 05:08 PM


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Yup - the different shades just reminded me of the NEAR earth flyby movie's R,G and B filters smile.gif

Doug
  Forum: Cometary and Asteroid Missions · Post Preview: #6256 · Replies: 9 · Views: 10096

djellison
Posted on: Mar 8 2005, 04:48 PM


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Do those images look like they're thru different filters to you?
  Forum: Cometary and Asteroid Missions · Post Preview: #6254 · Replies: 9 · Views: 10096

djellison
Posted on: Mar 7 2005, 07:40 PM


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I make the colour frames first - then make the mosaic - THEN tweak the colours - although I'm really not happy with the colours in that image at all

Doug
  Forum: Spirit · Post Preview: #6236 · Replies: 14 · Views: 13054

djellison
Posted on: Mar 7 2005, 03:31 PM


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I hope not - otherwise I wont get in to do the talk smile.gif

I've emailed the meetings sec. and ask - it would be great to meet someone from this forum and have them 'review' my talk biggrin.gif

I'm only charging the BAA for my train fair ( and then the money I get back goes to Comic Relief ) so I dont suppose they'd mind if I brought a 'guest'.

As far as I know - it's at about 4pm-ish on the Sat - would be good to meet up for Lunch before or something?

Doug
  Forum: Forum News · Post Preview: #6228 · Replies: 8 · Views: 11587

djellison
Posted on: Mar 7 2005, 10:12 AM


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At least we can see the thing now smile.gif

Doug
  Forum: Opportunity · Post Preview: #6225 · Replies: 3597 · Views: 3531676

djellison
Posted on: Mar 6 2005, 06:28 PM


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quite possibly - it would be an obvious reason.

Doug
  Forum: Spirit · Post Preview: #6212 · Replies: 14 · Views: 11990

djellison
Posted on: Mar 6 2005, 04:54 AM


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Oh yeah - it's L2 + L5 only as well biggrin.gif

Doug
  Forum: Spirit · Post Preview: #6201 · Replies: 12 · Views: 14112

djellison
Posted on: Mar 5 2005, 11:22 PM


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A little something I put together whilst waiting for the Australian Grand Prix - this is two sections ( a 4x4 and a 4x3 ) of the full Panorama taken at Larrys Leap. I'm hoping to be able to do the section looking into Ten.Val next week.

Doug
  Forum: Spirit · Post Preview: #6192 · Replies: 12 · Views: 14112

djellison
Posted on: Mar 5 2005, 11:13 PM


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www.polygonworlds.com smile.gif

I made the little airplane tongue.gif

Doug
  Forum: Tech, General and Imagery · Post Preview: #6191 · Replies: 66 · Views: 53540

djellison
Posted on: Mar 5 2005, 09:39 PM


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QUOTE (gregp1962 @ Mar 5 2005, 09:31 PM)
Can anyone say exactly where we are?

Mars smile.gif One would assume about 100-150m SE of the Triplets

DOug
  Forum: Opportunity · Post Preview: #6188 · Replies: 3597 · Views: 3531676

djellison
Posted on: Mar 5 2005, 12:09 PM


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You cant - you need to upload to your own webspace if you want to do that.

Doug
  Forum: Tech, General and Imagery · Post Preview: #6174 · Replies: 7 · Views: 6865

djellison
Posted on: Mar 5 2005, 11:53 AM


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We're still waiting to see ANY of those 1500 frames on the ESA Website apart from that one, I believe of Phobos. ESA has much to learn to be honest. I never got a response from Southwood sad.gif

Anyone know of the schedule for PDS releases of the Data?

Doug
  Forum: Mars Express & Beagle 2 · Post Preview: #6173 · Replies: 27 · Views: 27402

djellison
Posted on: Mar 5 2005, 11:50 AM


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Just a 16.6 FOV for Pancam and a 45 FOV for Navcam - Navcam never stitches particularly well though. It's all in the instrument description PDF's at the athena website, and the workbook.

Doug
  Forum: Spirit · Post Preview: #6172 · Replies: 14 · Views: 13054

djellison
Posted on: Mar 5 2005, 01:06 AM


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If you're looking at the raw images for the panorama Spirit's taken at its current location and gone "WTF is L6 or L7" - panic not - they've been taken and thumbnails are down smile.gif

Doug
  Forum: Spirit · Post Preview: #6159 · Replies: 302 · Views: 140255

djellison
Posted on: Mar 5 2005, 12:27 AM


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Following on from my talk at Northampton Natural History Society earlier in the week - I've been invited to talk at the British Astronomical Association at the English Heritage Lecture Theatre, London - on April 23rd

Doug

(Edit - I will be doing about an hour - but just on Spirit, not Opportunity. My talks are typically 80-90 mins, so I thought it best to cull Opportunity and do that as a seperate talk later in the year, and do a good job on Spirit, which is the better ' story ' - and more classically martian! )

Doug
  Forum: Forum News · Post Preview: #6158 · Replies: 8 · Views: 11587

djellison
Posted on: Mar 4 2005, 05:09 PM


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Hmm - anyone know how to find out the actual pointing direction of Pancam from a pds header?


/* DERIVED GEOMETRY DATA ELEMENTS: ROVER FRAME */

GROUP = ROVER_DERIVED_GEOMETRY_PARMS
INSTRUMENT_AZIMUTH = -61.9729 <deg>
INSTRUMENT_ELEVATION = -16.6434 <deg>
REFERENCE_COORD_SYSTEM_INDEX = (85, 0, 323, 552, 272)
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 = -67.1847 <deg>
INSTRUMENT_ELEVATION = 5.26536 <deg>
REFERENCE_COORD_SYSTEM_INDEX = 85
REFERENCE_COORD_SYSTEM_NAME = SITE_FRAME
SOLAR_AZIMUTH = 17.0203 <deg>
SOLAR_ELEVATION = -49.2353 <deg>
END_GROUP = SITE_DERIVED_GEOMETRY_PARMS


I'm asuming -67 is 67 deg left of looking straight forward - but is there anywhere that shows the pointing of the rover itself allowing to calculate a bearing for a pancam image?

Doug
  Forum: Spirit · Post Preview: #6142 · Replies: 4 · Views: 6049

djellison
Posted on: Mar 4 2005, 04:52 PM


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Doh - answered own question smile.gif

It'll be 360 - about 114 - so 246ish

Doug
  Forum: Spirit · Post Preview: #6141 · Replies: 4 · Views: 6049

djellison
Posted on: Mar 4 2005, 04:51 PM


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Anyone got a good bearing angle for the lander from the pan position at Clovis - to within a couple of degrees?

Doug
  Forum: Spirit · Post Preview: #6140 · Replies: 4 · Views: 6049

djellison
Posted on: Mar 4 2005, 04:48 PM


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www.ptgui.com

Doug
  Forum: Spirit · Post Preview: #6139 · Replies: 14 · Views: 13054

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