4 ms·
NASA's LRO Finds Photo Op as It Zips Past SKorea's Danuri Moon Orbiter
- MadnessASAP 3y agoA 300uS shutter speed seems pretty high for a space based ground imaging camera. Does the LRO actually need a shutter speed that high? I'm surprised it's even capable of that.
- passwordoops 3y agoThis article details why they require such a resolution (1). The first few paragraphs talk about elevation, but then they dive onto the topic (1) https://www.lroc.asu.edu/images/379 https://www.lroc.asu.edu/images/379
- perihelions 3y agoWould it be possible to simply tilt the camera at the same apparent rate as the ground is moving? edit: Found that the Apollo panoramic camera used physical motion to balance the apparent motion of their target, https://www.nasa.gov/history/afj/simbaycam/itek-pan-camera.html https://www.nasa.gov/history/afj/simbaycam/itek-pan-camera.h... ("The ITEK Panoramic Camera") - "(2) the gimbal structure assembly, which rocks the roll frame assembly back and forth to provide for the stereo photography and to compensate for the forward motion of the vehicle,"
- yencabulator 3y ago> Would it be possible to simply tilt the camera at the same apparent rate as the ground is moving? Perhaps possible, but would it be lighter, more robust, or cheaper? My understanding is that solid state things are generally much more robust, and in these days of microchips, usually easier to implement.
- Sharlin 3y agoWell, most consumer cameras are capable of 250μs shutter speeds, and prosumer cameras faster than that. And they're not zipping around their subject at several km/s.
- nirav72 3y agoThis is wild. Is this the first time such a fly by between two orbiting probes been captured on camera?
- basementcat 3y agoNo. The Mars Global Surveyor took a picture of the Mars Odyssey spacecraft in 2005. https://photojournal.jpl.nasa.gov/catalog/PIA07941 https://photojournal.jpl.nasa.gov/catalog/PIA07941 Closer to home, this is done somewhat often. https://www.twz.com/check-out-these-images-of-a-satellite-in-orbit-taken-by-another-satellite https://www.twz.com/check-out-these-images-of-a-satellite-in...
- consumer451 3y agoAlso, recently South Korea's orbiter got shots of Apollo 11 and 17 landing sites: https://universemagazine.com/en/south-korean-spacecraft-photographed-the-landing-sites-of-the-apollo-11-and-apollo-17-expeditions/ https://universemagazine.com/en/south-korean-spacecraft-phot...
- bigiain 3y ago"about 7,200 miles, or 1,500 kilometers, per hour" Sad to see that on the real NASA website. I'm guessing the 7200 miles is correct, and they typoed 11,500km. It just jumped out as so obviously wrong as I skimmed it.
- tsavo 3y agoAnd this is a reminder of what happened to that lost Mars probe
- noman-land 3y agoI have contacted NASA about this mistake.
- noman-land 2y agoThey fixed it.