ESA's Proba-3 Formation-Flyer Goes Silent | KeepTrack Space Brief
ESA's Proba-3 spacecraft lost contact last month, grounding the dual-satellite solar eclipse mission. Formation flying between both craft is critical for coronagraph science.
Launch Date
October 17, 2025
Launch Site
TSC
Launch Pad
LC9A
Launch Vehicle
Chang Zheng 6A
NORAD ID
66043
International Designator
2025-233L
Epoch
Sun, 19 Jul 2026 11:37:20 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
89.00°
Right Ascension
36.86°
Eccentricity
Calculating...
Argument of Perigee
45.01°
Period
100.92 min
Mean Motion
14.27 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
QIANFAN-101
Alternative Name
N/A
Type
Status
Owner
YUANX
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
1 66043U 25233L 26200.48426709 .00000153 00000+0 56803-4 0 9998
2 66043 88.9984 36.8576 0016798 45.0107 315.2445 14.26823847 39236
Source: Celestrak
Apologies, there is no summary for this satellite yet. I am working to generate these for every object in the catalog, but it is going to take time.
Length
0.3
Diameter
3.0
Span
10.0
Dry Mass
267
Launch Mass
267
Shape
Box+pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Qianfan Jigui 18-11
Purpose
Unknown
Mission
Unknown
Manufacturer
SECM
Life Expectancy
Unknown
Bus
Qianfan
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
ESA's Proba-3 spacecraft lost contact last month, grounding the dual-satellite solar eclipse mission. Formation flying between both craft is critical for coronagraph science.
SpaceX accelerates Block 3 Starship pad work at Starbase as Russia preps Soyuz-5 debut alongside Falcon 9 internet satellite launches.
Crew-11 prepares for historic first ISS medical evacuation via Crew Dragon. Lufthansa Group to equip all 850 aircraft with Starlink. Starship infrastructure advances at Starbase and Cape Canaveral.
LeoLabs debuts Delta, a space monitoring tool designed for military operators to detect adversarial orbital activity beyond standard conjunction warnings.
SpaceX's Falcon 9 rideshare lifted 45 satellites including South Korea's CAS500-2 Earth observer from Vandenberg at 0700 UTC May 3.
Crew-11 astronauts splashdown off California in first-ever ISS medical evacuation. SpaceX sets pad turnaround record at Cape Canaveral with Starlink 6-98 deploying 29 satellites.
SpaceX successfully launched 23 Starlink satellites while facing delays in launching the Axiom Space mission due to a propellant leak. Additionally, new US broadband rules favor Starlink's expansion into rural markets.
Today's space news features significant discussions on the funding of Space Force, advancements in hypersonic technology, and the potential impacts of spectrum auction plans on border defense systems.