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.
NORAD ID
53469
International Designator
2022-099E
Epoch
Sun, 19 Jul 2026 20:00:01 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
97.28°
Right Ascension
319.46°
Eccentricity
Calculating...
Argument of Perigee
71.70°
Period
94.21 min
Mean Motion
15.28 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
STARLINK-4399
Alternative Name
Starlink 4399
Type
Status
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 53469U 22099E 26200.83335647 .00071019 00000+0 25468-2 0 9992
2 53469 97.2840 319.4621 0001999 71.7023 63.5417 15.28434962 5817
Source: Celestrak
Length
0.2
Diameter
2.8
Span
9
Dry Mass
275
Launch Mass
300
Shape
Box + pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Starlink Group 3-3-05
Purpose
Communication
Mission
Communication
Manufacturer
SPXS
Life Expectancy
Unknown
Bus
Starlink
Configuration
Unknown
Motor
Krypton ion thrusters
Equipment
Ku/Ka-band payload, optical inter-satellite link
Power System
Solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
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.
Today's Space Brief covers a Soyuz launch mishap that damaged Baikonur pad, Varda Space's AFRL test flights, ION vehicles aboard SpaceX Transporter-15, and more.
SpaceX progresses with Starship Flight 8 preparations, completes investigation into Flight 7 mishap, and prepares for upcoming launches.
SpaceX successfully launched 27 Starlink satellites, marking another milestone for its broadband internet service. Meanwhile, the latest GPS III satellite was also launched for the U.S. military, showcasing SpaceX's multifaceted capabilities.
SpaceX launches NROL-105 spy satellite from Vandenberg in first national security mission of 2026. GE and Lockheed validate compact rotating detonation ramjet for hypersonic missiles.
Department of Air Force announces finalized Program Acquisition Executive structure within days, reshaping oversight of GPS, SBIRS, and Protected Tactical Satcom systems.
A fatality at SpaceX's Starbase shakes the program as Starship V3, standing 124 m tall with Raptor 3 engines, nears its maiden flight.
NASA's Artemis II launches 4 astronauts on lunar flyby April 1. Soyuz-5 inaugural flight confirmed for April 3. Space warfare doctrines shift toward agentic AI for faster decision loops.