· space brief · 5 min read
Space Brief 1 Dec 2025
Today's brief covers China's latest classified satellite launch, breakups in orbital refueling experiments, exciting advancements in microsatellites, and SpaceX's remarkable strides in spaceflight.

📰Top Stories
China Launches Classified Shijian-28 Spacecraft
China has launched the Shijian-28 spacecraft, adding to its series of experimental satellites known for their opaque missions. The launch was executed flawlessly; however, the debut flight of the commercial Zhuque-3 reusable rocket has been delayed. This development underscores China’s continuous expansion and innovation in their space capabilities. Satellite tracking applications on our web app can help enthusiasts follow these new orbital assets.
Read the full story: SpaceNews
Successful Separation After Geosynchronous Orbit Refueling Tests
Two experimental Shijian satellites have achieved a major milestone in space technology by separating after conducting on-orbit refueling tests in geosynchronous orbit. This achievement represents a significant breakthrough in extending the operational lifespans of satellites. Tracking satellites as they maneuver and shift into new operational phases can be explored further on our platform.
Read the full story: SpaceNews
Japan’s Axelspace Innovates with Microsatellites
Tokyo-based Axelspace is making waves in the satellite industry with its innovative microsatellites. Despite Japan’s smaller geographic footprint, Axelspace is proving that size doesn’t limit impact, contributing significantly to global satellite technology advancements. Learn more about the role of microsatellites in modern satellite tracking via our guide.
Read the full story: SpaceNews
SpaceX Achieves Massive Feat with Reusable Boosters
Elon Musk celebrates SpaceX’s latest achievement, marking the 30th flight of a Falcon booster—a technical accomplishment once deemed impossible. SpaceX continues to revolutionize the landscape of spaceflight with its innovative approach to reusability. This development further enhances the efficiency of satellite deployment and monitoring.
Read the full story: TESLARATI
Rapid Recovery in SpaceX’s Starship Program
Following a setback with Booster 18, SpaceX’s Starship program rebounds quickly by stacking Booster 19. This rapid progress exemplifies SpaceX’s resilience and commitment to advancing its heavy-lift capabilities, crucial for future missions including Mars. Keep up with the latest booster movements via our real-time tracker.
Read the full story: TESLARATI
🛰️Satellite Spotlight
- Satellite Name: R5-S4
- NORAD ID: 60206
- Launch Date: July 4, 2024
- Mission: The R5-S4 is designed for technology demonstrations and serves as a satellite inspector, enhancing our ability to monitor and inspect other satellites in orbit.
- Orbit: Low Earth Orbit (LEO)
- Operator: Jet Propulsion Laboratory (JSC)
- Fun Fact: This CubeSat, measuring just 6U in size, will leverage solar power and advanced technologies to provide critical data for future satellite operations.
Track this satellite in real-time on our web app: Track R5-S4
🌌Space Weather
Next 24 Hours
-
Radio Blackouts Probability
- Minor: 70
- Major: 20
- Risk: None
-
Solar Radiation
- Probability: 10
- Risk: None
-
Geomagnetic Storming
- Scale: 0
- Impact: none
- Activity: Low
-
Impact Summary
- Next 24 hours: No risk of radio blackouts, ensuring clear communication for satellite users and ground operations.
- No risk of solar radiation storms, minimizing potential interference with satellite electronics.
- Geomagnetic outlook shows no G1 (Minor) or greater geomagnetic storms expected, keeping satellite operations stable.
Long Term Forecast
- Impact Summary
- Forecast of Solar and Geomagnetic Activity (01 December - 27 December 2025): Anticipate moderate to high solar activity. M-class flares (R1-R2/Minor-Moderate) are likely, with a slight chance for X-flares (R3-Strong or greater) through 12 Dec, which may affect satellite communication.
- A slight chance exists for minor-level solar radiation storms due to the eruptive potential of Region 4294, potentially impacting sensitive systems.
- High levels of electron flux at geosynchronous orbit could affect satellites between 01-06, 16-17, and 24-27 Dec, necessitating monitoring by satellite operators.
- Geomagnetic activity is expected to reach active levels on 03 and 06 Dec, with G1 storm conditions on 04-05 Dec and additional G1 storms on 13, 22, and potentially 23-26 Dec, which could disrupt satellite navigation and communication systems during these periods.
🚀 Upcoming Space Launches
December 1
- Arianespace Vega-C:
- KOMPSAT-7 from Guiana Space Centre, French Guiana (17:21 UTC) KOMPSAT-7 is the follow-up model of KOMPSAT-3A whose mission is to provide high-resolution satellite images to satisfy South-Korea’s governmental and institutional needs.
December 2
- SpaceX Falcon 9 Block 5:
- Starlink Group 15-10 from Vandenberg SFB, CA, USA (02:10 UTC) A batch of 27 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
- SpaceX Falcon 9 Block 5:
- Starlink Group 6-95 from Cape Canaveral SFS, FL, USA (20:16 UTC) A batch of 29 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
December 4
- SpaceX Falcon 9 Block 5:
- Starlink Group 11-25 from Vandenberg SFB, CA, USA (18:12 UTC) A batch of 28 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
December 5
- Rocket Lab Electron:
- Raise and Shine (RAISE-4) from Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand (03:00 UTC) RAISE-4 is a Japan Aerospace Exploration Agency (JAXA) satellite for on-orbit demonstrations of innovative payloads.
December 7
- Mitsubishi Heavy Industries H3-22:
- Michibiki 5 (QZS-5) from Tanegashima Space Center, Japan (02:30 UTC) Part of the Japanese satellite navigation system QZSS, aiming to enhance GPS signals with original Japanese signals in high-elevation visibility areas.
- SpaceX Falcon 9 Block 5:
- Starlink Group 11-15 from Vandenberg SFB, CA, USA (16:13 UTC) A batch of 28 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
- SpaceX Falcon 9 Block 5:
- Starlink Group 6-92 from Kennedy Space Center, FL, USA (21:40 UTC) A batch of 29 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
Note: Launch dates and times are subject to change due to technical or weather considerations.
Maurice Stellarski