Lmst

https://www.pub-x.com/776900/ #ORβIT ‒「Never gonna get away」（Live Performance）#YOUNGHOON #YOONDONG #TOMO #SHUNYA #YUGO ##よんふん #KPOP #KPopBoys #KPopIdols #kpop #LINEMENOW #LivePerformance #LMN #musicvideo #mv #orbit #ORβIT #ORβIT_ROAR #PRODUCE101 #ROAR #SHUNYA #TOMO #YD #YOONDONG #YOUNGHOON #YUGO #オルビ #オルビット #キムユンドン #サバイバル番組 #チョンヨンフン #プデュ #ユンドン（YOONDONG） #ライブ映像 #大澤駿弥 #安藤誠明 #宮島優心 #日プ #김윤동 #정영훈

NASA changes its mind, will allow Artemis astronauts to take iPhones to the Moon https://arstechni.ca/tCvM #requirements #smartphone #Internet #iphone #Space #orbit #space #moon

A WEEK IN ORBITAL HOARDING
06/2026

🌐️ CATALOGED OBJECTS IN ORBIT: 32,866 (+28)
🛰 Active spacecraft: 14,760 (+32)
💤 Nonoperational spacecraft: 3,005 (+3)
🚀 Rocket bodies: 2,400 (-2)
❓ Unknown objects: 53 (+1)
🗑️ Debris >10 cm: 12,648 (-6)

34 cataloged objects were officially confirmed as reentered since the last update.

#Orbit #Satcat #Satellite #SpaceDebris #SpaceJunk #OrbitalHoarding

A high-contrast dark-mode table titled 'RECENT CONFIRMED REENTRIES'. It lists 34 objects that have decayed from orbit:
Row 1, Reentered On: 2025-07-20, Launched On: 1999-05-10, Object Name: FENGYUN 1C DEB, NORAD ID: 31617, Type: Debris
Row 2, Reentered On: 2025-11-18, Launched On: 2000-09-21, Object Name: NOAA 16 DEB, NORAD ID: 41355, Type: Debris
Row 3, Reentered On: 2025-11-20, Launched On: 1993-06-16, Object Name: COSMOS 2251 DEB, NORAD ID: 36064, Type: Debris
Row 4, Reentered On: 2026-01-20, Launched On: 2022-11-11, Object Name: CZ-6A DEB, NORAD ID: 55881, Type: Debris
Row 5, Reentered On: 2026-01-25, Launched On: 2023-06-15, Object Name: OBJECT R, NORAD ID: 57019, Type: Spacecraft
Row 6, Reentered On: 2026-01-26, Launched On: 1994-05-19, Object Name: PEGASUS DEB, NORAD ID: 24165, Type: Debris
Row 7, Reentered On: 2026-01-26, Launched On: 1991-11-28, Object Name: DMSP 5D-2 F11 DEB, NORAD ID: 28346, Type: Debris
Row 8, Reentered On: 2026-01-26, Launched On: 2013-09-29, Object Name: POPACS 1, NORAD ID: 39268, Type: Spacecraft
Row 9, Reentered On: 2026-01-26, Launched On: 2024-03-04, Object Name: LEMUR-2-ROCINANTE, NORAD ID: 59147, Type: Spacecraft
Row 10, Reentered On: 2026-01-27, Launched On: 1993-06-16, Object Name: COSMOS 2251 DEB, NORAD ID: 34429, Type: Debris
Row 11, Reentered On: 2026-01-27, Launched On: 2019-12-20, Object Name: CZ-4B R/B, NORAD ID: 44888, Type: Rocket body
Row 12, Reentered On: 2026-01-27, Launched On: 2023-06-15, Object Name: OBJECT E...

Laika
03.11.1957

Laika, die kleine Hündin, die als erstes Lebewesen die Erde umkreiste. Am 3. November 1957 wurde sie an Bord des Raumflugkörpers Sputnik 2 in den Weltraum geschickt.

#Laika
#Sputnik2
#Weltraum
#Orbit

A WEEK IN ORBITAL HOARDING
05/2026

🌐️ CATALOGED OBJECTS IN ORBIT: 32,838 (+130)
🛰 Active spacecraft: 14,728 (+137)
💤 Nonoperational spacecraft: 3,002
🚀 Rocket bodies: 2,402 (-2)
❓ Unknown objects: 52 (-1)
🗑️ Debris >10 cm: 12,654 (-4)

20 cataloged objects were officially confirmed as reentered since the last update.

#Orbit #Satcat #Satellite #SpaceDebris #SpaceJunk #OrbitalHoarding

A high-contrast dark-mode table titled 'RECENT CONFIRMED REENTRIES'. It lists 20 objects that have decayed from orbit:
Row 1, Reentered On: 2026-01-02, Launched On: 1999-05-10, Object Name: FENGYUN 1C DEB, NORAD ID: 32355, Type: Debris
Row 2, Reentered On: 2026-01-17, Launched On: 2000-09-21, Object Name: NOAA 16 DEB, NORAD ID: 42352, Type: Debris
Row 3, Reentered On: 2026-01-19, Launched On: 2024-01-29, Object Name: STARLINK-31254, NORAD ID: 58892, Type: Spacecraft
Row 4, Reentered On: 2026-01-19, Launched On: 2025-04-24, Object Name: SHENZHOU-20 (SZ-20), NORAD ID: 63632, Type: Spacecraft
Row 5, Reentered On: 2026-01-20, Launched On: 2024-11-04, Object Name: ZIMSAT-2, NORAD ID: 61783, Type: Spacecraft
Row 6, Reentered On: 2026-01-21, Launched On: 1993-06-16, Object Name: COSMOS 2251 DEB, NORAD ID: 34400, Type: Debris
Row 7, Reentered On: 2026-01-21, Launched On: 2024-08-16, Object Name: GAINDESAT-1A, NORAD ID: 60529, Type: Spacecraft
Row 8, Reentered On: 2026-01-21, Launched On: 1998-11-20, Object Name: GHS-01, NORAD ID: 65733, Type: Spacecraft
Row 9, Reentered On: 2026-01-22, Launched On: 1995-03-24, Object Name: DMSP 5D-2 F13 DEB, NORAD ID: 40570, Type: Debris
Row 10, Reentered On: 2026-01-22, Launched On: 2016-06-22, Object Name: BIROS, NORAD ID: 41604, Type: Spacecraft
Row 11, Reentered On: 2026-01-22, Launched On: 2024-05-07, Object Name: CZ-6C R/B, NORAD ID: 59681, Type: Rocket body
Row 12, Reentered On: 2026-01-23, Launched On: 2020-10-06, Object Name: ...

Skimming Satellites: On the Edge of the Atmosphere https://hackaday.com/2026/01/22/skimming-satellites-on-the-edge-of-the-atmosphere/
#Featured #OriginalArt #Space #ESA #Ionengine #JAXA #Orbit #Satellite

Skimming Satellites: On the Edge of the Atmosphere

https://web.brid.gy/r/https://hackaday.com/2026/01/22/skimming-satellites-on-the-edge-of-the-atmosphere/

<div><img alt="" class="attachment-large size-large wp-post-image" height="450" src="https://hackaday.com/wp-content/uploads/2026/01/vleo_feat.jpg?w=800" style="margin: 0 auto; margin-bottom: 15px;" width="800" /></div><p>There’s little about building spacecraft that anyone would call simple. But there’s at least one element of designing a vehicle that will operate outside the Earth’s atmosphere that’s fairly easier to handle: aerodynamics. That’s because, at the altitude that most satellites operate at, drag can essentially be ignored. Which is why most satellites look like refrigerators with solar panels and high-gain antennas attached jutting out at odd angles.</p>
<p>But for all the advantages that the lack of meaningful drag on a vehicle has, there’s at least one big potential downside. If a spacecraft is orbiting high enough over the Earth that the impact of atmospheric drag is negligible, then the only way that vehicle is coming back down in a reasonable amount of time is if it has the means to reduce its own velocity. Otherwise, it could be stuck in orbit for decades. At a high enough orbit, it could essentially stay up forever.</p>
<figure class="wp-caption alignright" id="attachment_906403" style="width: 400px;"><a href="https://hackaday.com/wp-content/uploads/2026/01/vleo_vanguard.jpg"><img alt="" class="size-medium wp-image-906403" height="333" src="https://hackaday.com/wp-content/uploads/2026/01/vleo_vanguard.jpg?w=400" width="

RE: https://scicomm.xyz/@JohnBarentine/115929568810746020

#Satellites in #Earth #orbit play a major role in everyday life on Earth and make the global #connectivity via our media possible in the first place. However, the increasing number of satellites in #lowEarthorbit (#LEO) can also #brighten the #nightsky in places and interfere with #astronomical #observations. Degen et al. (2026) recommend #retroreflective #coatings on satellites to #redirect #sunlight in order to reduce brightness.
©this text#StefanFWirth 2026

Ref https://doi.org/10.1016/j.actaastro.2026.01.042

Or really, I should just rewrite this as a VRP, since it is so close to that anyway and the code I have was just a prototype.

#constraintprogramming #python #radar #orbit #scheduling #math #computerscience

A true Traveling Salesman Problem on top of the Knapsack Problem takes longer than I want to spend (many minutes vs ~10s) and also does more than I want.

A forced-greedy TSP (near neighbors are all scored 1, farther nodes are all scored 0) is much faster and closer to what I want but still longer than I want (~2m)

The solution to a combinatorial problem is not a faster algorithm, it's a smaller problem.

I need to break the TSP into chunks and solve them separately. The difficult thing is that I need to do this while deliberately remaining unaware of the semantics of the nodes for larger architectural reasons.

#constraintprogramming #python #radar #orbit #scheduling #math #computerscience

A WEEK IN ORBITAL HOARDING
04/2026

🌐️ CATALOGED OBJECTS IN ORBIT: 32,708 (+21)
🛰 Active spacecraft: 14,591 (+33)
💤 Nonoperational spacecraft: 3,002 (-2)
🚀 Rocket bodies: 2,404 (+3)
❓ Unknown objects: 53 (+1)
🗑️ Debris >10 cm: 12,658 (-14)

30 cataloged objects were officially confirmed as reentered since the last update.

#Orbit #Satcat #Satellite #SpaceDebris #SpaceJunk #OrbitalHoarding