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Brian Swift

@bswift.bsky.social
2.5K followers 196 following 161 posts

Whatevs... JunoCam raw images ain't gonna process themsleves. Intel • fmr NASA JPL Radar Science SRTM • CDC Cybers anyone? • Santa Cruz (California)

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Brian Swift @bswift.bsky.social · 10h
Mendocino California vacay pics
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Brian Swift @bswift.bsky.social · 04/10/2026
Finally got around to stabilizing my handheld ISS transit of Sun 9/22/0226 at 3:11 PDT from Guadalupe River Park, San Jose California
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Brian Swift @bswift.bsky.social · 23/09/2026
What was your first computer growing up?
Advertisement for APF Imagination Machine early personal computer
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Brian Swift @bswift.bsky.social · 23/09/2026
ISS transit of Sun today 9/22/0226 at 3:11 PDT from Guadalupe River Park, San Jose California.
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Brian Swift @bswift.bsky.social · 21/09/2026
Google Earth based timelapse of Lucas Museum of Narrative Art site
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Brian Swift @bswift.bsky.social · 20/09/2026
Marine Layer Moon Santa Cruz California #observethemoon
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Brian Swift @bswift.bsky.social · 03/08/2026
From "THE PREPARATION OF PROGRAMS FOR AN ELECTRONIC DIGITAL COMPUTER 2nd Ed 1957" ia903205.us.archive.org/14/items/pro...
Programming cannot be taught in the abstract, or learned without
practice, and any book on programming must use the order code of some
particular machine, real or hypothetical. Fortunately, the order code of
the EDSAC lends itself well to the purposes of a book on programming,
being fairly straightforward and relatively easily memorized. Moreover,
the EDSAC is a single-address binary machine, and a recent survey by
M. H. Weik (for reference see Bibliography) shows that, of the types of
machine currently in use, about 50% use single-address order codes and
about 60% work in the binary scale. The order code of the EDSAC con-
tains a few of the minor inconsistencies and complications invariably
found in the order codes of real machines; the order codes of hypothetical
machines especially designed for teaching may be free of these inconsist-
encies and complications, but are inevitably somewhat artificial in con-
sequence. One advantage of using the order code of an established
machine is that it is possible to draw on experience of programming and
of the teaching of programming. The first two chapters of Part 1 of this
edition are based on courses of programming given in this laboratory over
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Brian Swift @bswift.bsky.social · 02/08/2026
Just a reminder of the advantages of MOS circuits over ferrite-core memories (from CDC CYBER 170 COMPUTER SYSTEM SYSTEMS HARDWARE HANDBOOK bitsavers.trailing-edge.com/pdf/cdc/cybe... )
MOS INTEGRATED CIRCUITS
The MOS integrated circuits are silicone microcircuits with capacitive characteristics that
make them suitable as high density storage devices. Manufacturing techniques and operat-
ing characteristics of the MOS circuits give them a number of advantages over the ferrite-
core memories. These advantages apply also to ECL circuits in comparison to discrete
components.
• Lower cost
Faster operation, on a system basis
• Lower power requirements
• Higher reliability
• Higher densities, as low as one-seventh the space of core memories
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Brian Swift @bswift.bsky.social · 28/06/2026
Fun afternoon at Woodies on the Wharf flic.kr/ps/Pp8XL
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Brian Swift @bswift.bsky.social · 19/06/2026
Birthday Baller Baseball at Ernie Raimondi Park in Oakland California with Scrappy the rally opossum
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Brian Swift @bswift.bsky.social · 31/05/2026
From today’s visit to Monkeyflower Ranch in Salinas California.
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Brian Swift @bswift.bsky.social · 12/04/2026
I wonder if next hard drive will be labeled after eponymous lubricant
Western Digital 20TB hard drive with WD20 written on blue painter’s tape label.
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Brian Swift @bswift.bsky.social · 11/04/2026
For you Artemis backout viewing. Crop of www.flickr.com/photos/nasa2...
Moon and Earth over limb
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Brian Swift @bswift.bsky.social · 07/04/2026
Great photos from NASA Artemis II mission at JSC Flickr site. (Click individual image download icons for 45MP full-resolution pixel-peeping) www.flickr.com/photos/nasa2...
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Brian Swift @bswift.bsky.social · 08/03/2026
Well, there is your problem.
Dryer drum roller sitting a skew on shaft above piles of fine metal filingsDryer roller with normal rim, and rim that had been worn down into filings.
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Brian Swift @bswift.bsky.social · 03/03/2026
So long lunar eclipses until 2028
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Brian Swift @bswift.bsky.social · 03/03/2026
Eclipsed moon. Yay.
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Brian Swift @bswift.bsky.social · 04/01/2026
PJ03 Jupiter Images, Exaggerated Color/Contrast. Full resolution at flic.kr/p/2rQ2PNi
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Brian Swift @bswift.bsky.social · 30/12/2025
Unix v4 circa 1973 available from your browser at unixv4.dev from discuss.systems/@danielcowen...
Screenshot of website emulating a green screen terminal connected to a Unix v4 system
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Brian Swift @bswift.bsky.social · 29/12/2025
Never-mind. Delayed again.
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Brian Swift @bswift.bsky.social · 26/10/2025
Wasn't expecting Kpop Demon Hunters Chili at Santa Cruz Beach Boardwalk's chili cook-off today.
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Brian Swift @bswift.bsky.social · 18/10/2025
Good turnout for #NoKings march in Santa Cruz California.
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Brian Swift @bswift.bsky.social · 05/10/2025
Shooting through a little marine layer to #observethemoon from Santa Cruz California.
The moon
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Brian Swift @bswift.bsky.social · 05/10/2025
“Missed it by that much”
2008 Mazda 3 odometer reading 333334
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Brian Swift @bswift.bsky.social · 03/08/2025
Congrats to JPL radar peeps and everyone responsible for REASON instrument and creation of radargram captured during Europa Clipper March 1 Mars flyby. Strip image at photojournal.jpl.nasa.gov/catalog/PIA2... REASON (open access) paper at link.springer.com/article/10.1...
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Brian Swift @bswift.bsky.social · 20/07/2025
Happy Moon Day. First photo of a human taken from surface of another world. Buzz Aldrin egressing from Apollo 11 Lunar Module Eagle on 7/20/1969. Full Rez at flic.kr/p/2gDbHUn
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Brian Swift @bswift.bsky.social · 20/07/2025
Since JunoCam hasn't been feeling well for the last two perijove passes, here's a rewind back to Perijove 1, August 2016. Image JNCE_2016240_00C06160 acquired 2016-08-27T11:59 from altitude 73,009 km.
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Brian Swift @bswift.bsky.social · 09/07/2025
Texas dark skies telescope ranch (from x.com/astrofalls/s... )
Many remotely accessible amateur owned telescopes in row of buildings with slide-over roofs.
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Brian Swift @bswift.bsky.social · 19/06/2025
San Jose Giants @ Modesto Nuts
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Brian Swift @bswift.bsky.social · 09/06/2025
JunoCam Jupiter images from PJ72. Exaggerated color/contrast. Full resolution version at flic.kr/p/2r9L22Y
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Brian Swift @bswift.bsky.social · 09/05/2025
JunoCam is back! PJ72_21 Jupiter image, exaggerated color/contrast. Altitude 40325km, image data captured 2025-05-07T02:26 (51.3 hours ago)
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Brian Swift @bswift.bsky.social · 10/03/2025
Io Images from JunoCam, PJ70. Raw data acquired 2025-03-02T12:03:24 to 12:43:17 from altitudes ranging 79483 to 84543.2km.
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Brian Swift @bswift.bsky.social · 05/03/2025
Jupiter PJ70_26 Crop, Exaggerated Color/Contrast acquired by JunoCam from 51143 km at 2025-03-02T15:23:23
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Brian Swift @bswift.bsky.social · 18/02/2025
Took 17 year old Samsung gift printer from @kithrup.bsky.social to greybears.org e-waste today 😢Popped into their electronics store. Greeted by a $50 10 year old M252dw w/nice looking test page. "Encryption credentials have expired" (was valid 1/1/2015 to 1/1/2025) fixed. Giddy this just works
Screenshot of MacOS terminal window showing directory listing containing PostScript test pattern files I created in 1992 being printed with lpr command.
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Brian Swift @bswift.bsky.social · 09/02/2025
Jupiter PJ69_31 Crop, Exaggerated Color/Contrast acquired by JunoCam from 17670 km at 2025-01-28T22:46:40
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Brian Swift @bswift.bsky.social · 03/02/2025
Jupiter, JunoCam PJ69_19 from raw data acquired a few days ago at 2025-01-28T22:24 from altitude of 49,731 km.
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Brian Swift @bswift.bsky.social · 01/01/2025
Jupiter, from JunoCam PJ45 raw data acquired between 2024-12-27T04:39 and 2024-12-27T05:10 from altitude ranging from 54456 to 10141 km (exaggerated color/contrast)
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Brian Swift @bswift.bsky.social · 30/12/2024
JunoCam PJ68 Io Images. Process from raw data acquired between 2024-12-27T01:11 and 2024-12-27T01:45 with altitude ranging form 74713 to 84282 km. (There's just a bit of a plume at the top of the first two image.)
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Brian Swift @bswift.bsky.social · 26/12/2024
Europa, from JunoCam PJ45_01 raw data acquired at 2022-09-29T09:38 from altitude of 1521 km (exaggerated color/contrast)
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Brian Swift @bswift.bsky.social · 02/12/2024
Almost time to head home from Mendocino, CA.
Green garden, blue sky with clouds and quaint buildings.
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Brian Swift @bswift.bsky.social · 01/12/2024
Jupiter, JunoCam PJ67_19 raw data acquired a few days ago at 2024-11-24T12:27 from altitude of 46,186 km.
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Brian Swift @bswift.bsky.social · 30/11/2024
Jupiter PJ67_25 Crop, Exaggerated Color/Contrast acquired by @NASAJuno from 27594 km at 2024-11-24T12:39:35
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Brian Swift @bswift.bsky.social · 24/11/2024
Jupiter rings from Juno Stellar Reference Unit, a low-light camera used primarily for navigation, and occasionally for taking pics of not-just-stars. For each image pair, left is min-max stretch, right is histogram transform.
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Brian Swift @bswift.bsky.social · 24/11/2024
Io. Processed from raw data collected by JunoCam during Perijove 66 between 2024-10-22T14:23 and 2024-10-22T14:37 from altitudes between 60520 and 67391 km.
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Brian Swift @bswift.bsky.social · 19/11/2024
Images from Juno Stellar Reference Unit, a low-light camera used primarily for navigation, and occasionally for taking pics of not-just-stars. For each image pair, left is min-max stretch, right is histogram transform. Full resolution at flic.kr/p/2qv4ib8
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Brian Swift @bswift.bsky.social · 18/11/2024
Ganymede. Juno PJ34_01. Processed from raw image data collected on 2021-06-07T16:57 from an altitude of 1300 km.
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Brian Swift @bswift.bsky.social · 09/11/2024
A super cool piece. From goofing around with JunoCam raw data I also think Jupiter's color variation is one-dimensional, with variation like in the chips in this screenshot.
Screenshot of Mathematica notebook showing matrix representing principal components of JunoCam image data and code producing 10 color chips by linear scaling 2nd principal component.
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Brian Swift @bswift.bsky.social · 02/11/2024
Jupiter (exaggerated color/contrast) from JunoCam PJ66_25. Raw image data acquired 2024-10-22T17:40 from altitude of 33903 km.
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Brian Swift @bswift.bsky.social · 17/09/2024
Junocam PJ63 Jupiter image collection. Full resolution at flic.kr/p/2qgTPsy
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Brian Swift @bswift.bsky.social · 15/09/2024
JunoCam PJ64 Jupiter Image Collage, Exaggerated Color/Contrast - full Rez at flic.kr/p/2qgqAqa
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