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.
BISONSAT (40974)
COSPAR: 2015-058L | Alt Name: SINOD-D-1
Image
Additional Sources
Launch Details
Launch Date
October 8, 2015
Launch Site
AFWTR
Launch Pad
SLC3E
Launch Vehicle
Atlas V 401
Orbital Elements
NORAD ID
40974
International Designator
2015-058L
Epoch
Sat, 04 Jul 2026 05:54:21 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
64.76°
Right Ascension
118.47°
Eccentricity
Calculating...
Argument of Perigee
40.44°
Period
94.94 min
Mean Motion
15.17 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
BISONSAT
Alternative Name
SINOD-D-1
Type
Payload
Status
Operational
Owner
SRII
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 40974U 15058L 26185.24608082 .00021042 00000-0 99022-3 0 9999
2 40974 64.7584 118.4723 0080958 40.4413 320.2690 15.16671744118208
Source: Celestrak
Summary
BISONSAT (also known as SINOD-D-1) is a CubeSat 2U technology satellite built by SRII and owned by SRII. It was launched on October 8, 2015, from AFWTR Launch Site at SLC3E using the Atlas V 401 launch vehicle. The satellite has dimensions of 0.2 meters in length, 0.1 meters in diameter, and spans 0.2 meters. It weighs 2 kilograms both at launch and dry mass. BISONSAT is powered by solar cells and batteries and has a box shape. No additional mission-specific equipment or frequencies are listed for this satellite.
Physical Characteristics
Length
0.2
Diameter
0.1
Span
0.2
Dry Mass
2
Launch Mass
2
Shape
Box
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
SINOD-D-1
Purpose
Technology
Mission
Technology
Manufacturer
SRII
Life Expectancy
Unknown
Bus
Cubesat 2U
Configuration
CubeSat (2U)
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 2 Feb 2025
Today's highlights include new satellite launches by SpaceX, technical hiccups for an Indian navigation satellite, and insights into the future of satellite servicing.
Space Brief 4 Sep 2024
Today's brief highlights SpaceX's Starlink launch, the sale of Telesat's remote communications services, advancements in hypersonic missile tracking, and more on satellite imagery from the NGA.
Space Object Catalog
The master ledger of everything orbiting Earth: how tens of thousands of satellites, rocket bodies, and debris fragments are tracked and numbered
Space Force Stands Up SPACEFOR-NORTH for Homeland Defense | KeepTrack Space Brief
Space Force inaugurates SPACEFOR-NORTH at Peterson SFB for homeland defense. Viridian inks AFRL satellite agreement. HASC chair seeks $450B defense fund.
The Day We First Landed on Venus
On December 15, 1970, a battered Soviet probe accomplished something no spacecraft had done before - it survived landing on another world and lived to tell about it.
China Plans First One-Year Human Spaceflight Mission | KeepTrack Space Brief
China confirms first one-year human spaceflight and Pakistani astronaut for Tiangong. Air Force develops X-68A missile-launching drone. Poland unveils $51B defense spending plan.
Starlink Hits 10,000 Satellites in Orbit, X Report 17 Mar 2026
How many Starlink satellites are in orbit in 2026? SpaceX passed 10,000 after the Starlink 17-24 launch, with 10,020 in orbit and 11,529 launched.