X Report 12 May 2025
SpaceX prepares for its 100th Falcon 9 launch from Kennedy Space Center while facing a scrubbed attempt of the latest Starlink deployment.
COSMOS 1777 (16952)
COSPAR: 1986-070A | Alt Name: Kosmos-1777
Image
Additional Sources
Launch Details
Launch Date
September 10, 1986
Launch Site
PLMSC
Launch Pad
LC133/3
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
16952
International Designator
1986-070A
Epoch
Sat, 04 Jul 2026 00:44:35 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
74.00°
Right Ascension
91.96°
Eccentricity
Calculating...
Argument of Perigee
241.79°
Period
100.41 min
Mean Motion
14.34 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
COSMOS 1777
Alternative Name
Kosmos-1777
Type
Payload
Status
Unknown
Owner
UNKS
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 16952U 86070A 26185.03097000 .00000136 00000-0 57905-4 0 9995
2 16952 74.0049 91.9560 0026844 241.7857 118.0584 14.34097766 81279
Source: Celestrak
Summary
COSMOS 1777 (also known as Kosmos-1777) is a military communication satellite that was launched on September 10, 1986, from the Plesetsk Cosmodrome's LC133/3 launch pad using the Kosmos 11K65M launch vehicle. It has a cylindrical shape with dimensions of 3 meters in length and 2 meters in diameter, weighing 800 kilograms at launch and also as dry mass. The satellite is equipped with solar cells and batteries for power supply and was designed to perform store-and-dump communication tasks. It was manufactured by NPOPM (NPO Mashinostroyeniya) under the Strela-2M bus configuration, intended primarily for military purposes. Its expected operational lifetime was 6 months.
Physical Characteristics
Length
3
Diameter
2
Span
3
Dry Mass
800
Launch Mass
800
Shape
Cyl
Radar Cross Section
1.998
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Strela-2M No. [50]
Purpose
Military Communication, store dump
Mission
Military Communication, store dump
Manufacturer
NPOPM
Life Expectancy
6 months
Bus
Strela-2M
Configuration
Unknown
Motor
Unknown
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 Force Eyes 30,000 Satellites by 2040 | KeepTrack Space Brief
Space Force projects 30,000-satellite orbital architecture by 2040 amid combat integration revelations. Gen. Saltzman confirms space operations were critical in Iran conflict.
Space Brief 5 Sep 2025
Today's Space Brief delves into key military developments in space, including the Space Force's pioneering officer training and innovative small satellite communication strategies.
The $30 Million Toilet That Keeps Breaking on the Way to the Moon
Sixty years of space toilet engineering, a decade of development, and a $30 million contract - and the Artemis II crew still had to pee in bags on Day 1.
X Report 17 Dec 2024
SpaceX executes a rapid response GPS mission for the U.S. Space Force, Starlink extends its reach with a beta smartphone connectivity service by T-Mobile, and Starship approaches its seventh launch with readiness milestones.
Space Brief 31 Jul 2025
Today's Space Brief brings updates on the U.S. Space Force's upcoming missions, in-space technology strategies, the challenges faced by new launchers, and advancements in satellite communication.
SDA Awards $1.75B for Golden Dome Missile Tracking | KeepTrack Space Brief
SDA hands L3Harris and Sierra Space $1.75B to build missile warning satellites for Pentagon's Golden Dome shield, targeting 2028 demonstration under accelerated schedule.
X Report 2 Sep 2025
SpaceX kicks off a busy week with five Falcon 9 missions planned, while the impressive layout of Raptor engines on Starship captures imaginations.