Vulcan Grounding Threatens WGS-11 and OPIR Launches | KeepTrack Space Brief
ULA's Vulcan rocket grounded, imperiling Space Force WGS-11 communications satellite and Next-Gen OPIR missile warning payload. Both missions lack backup launch options.
SAKURA (CS) (10516)
COSPAR: 1977-118A | Alt Name: Sakura
Image
Additional Sources
Launch Details
Launch Date
December 15, 1977
Launch Site
Launch Pad
LC17B
Launch Vehicle
Delta 2914
Orbital Elements
NORAD ID
10516
International Designator
1977-118A
Epoch
Sat, 04 Jul 2026 03:27:46 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
7.34°
Right Ascension
296.95°
Eccentricity
Calculating...
Argument of Perigee
137.31°
Period
1455.77 min
Mean Motion
0.99 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SAKURA (CS)
Alternative Name
Sakura
Type
Payload
Status
Non-operational
Owner
NASDA
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 10516U 77118A 26185.14429036 -.00000219 00000-0 00000-0 0 9991
2 10516 7.3397 296.9500 0001789 137.3059 226.9878 0.98916438135760
Source: Celestrak
Summary
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.
Physical Characteristics
Length
2.2
Diameter
2.2
Span
3.8
Dry Mass
276
Launch Mass
314
Shape
Cyl + Ant
Radar Cross Section
8.058
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
CS
Purpose
Communication
Mission
Communication
Manufacturer
MELCO/FORDA
Life Expectancy
Unknown
Bus
CS
Configuration
Unknown
Motor
SVM-6
Equipment
Unknown
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Space Brief 2 Dec 2025
Today's brief covers China's classified Shijian-28 satellite launch, AI-designed spacecraft records, and upcoming global launch activities.
Space Brief 11 Jun 2025
Today's Space Brief covers a major partnership in space tech distribution, China's orbital refueling preparations under U.S. scrutiny, recent U.S. defense budget reveals, and an exciting hyperspectral imagery release from Xplore.
Who Owns SpaceX in 2026? Ownership, Valuation, and the Trillion-Dollar IPO
Elon Musk controls 79% of SpaceX's votes with just 42% of the equity - and the company just merged with his AI startup at a $1.25 trillion valuation. Here's who actually owns what, how the money works, and what a $1.75 trillion IPO means for investors.
Space Brief 13 Nov 2025
Delve into the latest on military AI leadership debates, Wedgetail funding increases, and the Army's Short Range Reconnaissance Program advancements. Explore how these developments influence satellite tracking and defense initiatives.
Space Brief 18 Dec 2025
Today's updates cover Rocket Lab's launch for the U.S. Space Force, Digantara's major funding round, and discussions on national security in space.
SpaceX Unveils Stargaze SSA System, Explores xAI Merger Ahead of IPO | KeepTrack X Report
SpaceX unveils Stargaze space situational awareness system during 13th launch of January. Reports surface of SpaceX-xAI merger talks ahead of potential IPO. Dual-coast Starlink launches from CA and FL.
Crew-11 Astronauts Arrive in Houston After Historic ISS Evacuation | KeepTrack X Report
Crew-11 astronauts arrive in Houston following first-ever ISS medical evacuation. Starlink continues robust satellite deployment schedule with ongoing constellation expansion.