X Report 20 Aug 2025
SpaceX makes significant strides with Starship Flight Test 10 approved and updates on the new Starbase pad design.
GRUS-1D (47936)
COSPAR: 2021-022E | Alt Name: Suisen
Image
Additional Sources
Launch Details
Launch Date
March 22, 2021
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1A
Orbital Elements
NORAD ID
47936
International Designator
2021-022E
Epoch
Sat, 04 Jul 2026 07:01:09 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
97.54°
Right Ascension
68.12°
Eccentricity
Calculating...
Argument of Perigee
244.32°
Period
96.08 min
Mean Motion
14.99 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
GRUS-1D
Alternative Name
Suisen
Type
Payload
Status
Operational
Owner
AXEL/FUKUI
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 47936U 21022E 26185.29247016 .00001900 00000-0 16256-3 0 9992
2 47936 97.5368 68.1176 0009234 244.3228 115.7042 14.98736988288462
Source: Celestrak
Summary
The GRUS-1D satellite, also known as Suisen, was launched on March 22, 2021, from the Tsumkbui launch site using a Soyuz-2-1A launch vehicle at LC31. It is owned by AXEL/FUKUI and manufactured by AXEL for Earth observation purposes. The satellite has dimensions of 0.5 meters in length, diameter, and span, with a dry mass of 80 kilograms and the same launch mass. Its power system consists of solar cells and batteries. GRUS-1D is shaped like a box and is expected to have a lifetime exceeding five years.
Physical Characteristics
Length
0.5
Diameter
0.5
Span
0.5
Dry Mass
80
Launch Mass
80
Shape
Box
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
GRUS 1D
Purpose
Earth observation
Mission
Earth observation
Manufacturer
AXEL
Life Expectancy
> 5 years
Bus
GRUS
Configuration
Unknown
Motor
None
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 8 Nov 2025
Today's Space Brief covers major developments in Pentagon procurement methods, strategic satellite intelligence advancements, and increasing interest in drone technology within the defense sector.
X Report 18 Dec 2024
SpaceX achieves significant milestones with Starship and multiple launch missions, while Starlink connectivity expands through T-Mobile's beta program.
The Day NASA Chose Its First Space Pioneers
Sixty-four years ago, NASA made a decision that would shape the future of human spaceflight by selecting three astronauts to compete for America's first journey into space
First Nuclear-Powered Commercial Satellite Flies on Transporter-17 | KeepTrack X Report
SpaceX's Transporter-17 rideshare carried 81 payloads including history's first nuclear-powered commercial satellite on July 7.
X Report 15 Jun 2025
SpaceX explores new horizons with Starship's point-to-point travel announcement and reports significant Starlink deployment progress.
X Report 23 Apr 2025
SpaceX marks a significant milestone with its Bandwagon-3 mission, while Ukraine explores Starlink alternatives.
X Report 9 Jun 2025
Tensions between SpaceX and the U.S. government escalate as President Trump's threats could have significant implications on the company's operations and future plans. Meanwhile, India takes a significant step in its space endeavors with a historic astronaut launch.