X Report 25 Mar 2025
SpaceX achieves new milestones with back-to-back launches for the NRO while preparing for groundbreaking crewed polar mission FRAM2.
PIONEER VENUS PROBE 3 (12105)
COSPAR: N/A | Alt Name: Day Probe
DECAYED
Image
Additional Sources
Launch Details
Launch Date
August 8, 1978
Launch Site
Launch Pad
Unknown
Launch Vehicle
Unknown
Orbital Elements
NORAD ID
12105
International Designator
N/A
Decay Date
12/9/1978
Basic Satellite Info
Name
PIONEER VENUS PROBE 3
Alternative Name
Day Probe
Type
Payload
Status
Decayed
Owner
ARC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
PIONEER VENUS PROBE 3, also known as Day Probe, is a PV Small Probe satellite launched by ARC on August 8, 1978, from AFETR launch site. The spacecraft has dimensions of 1 meter in length and diameter, with a span of 1 meter, and it has a cone shape. It weighs 90 kilograms at both dry mass and launch mass. The satellite was manufactured by HSES and carries Small Probe 2 as its payload. No additional details regarding its mission or operational specifics are provided.
Physical Characteristics
Length
1
Diameter
0.8
Span
1
Dry Mass
90
Launch Mass
90
Shape
Cone
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Small Probe 2
Purpose
Unknown
Mission
Unknown
Manufacturer
HSES
Life Expectancy
Unknown
Bus
PV Small Probe
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Space Brief 26 Oct 2025
Today's brief covers a new Space Force contract for advanced tracking systems, innovative debris removal strategies, pivotal new satellite launches, and significant updates in air quality tracking from orbit.
X Report 30 Dec 2024
SpaceX wraps up the year with significant launches, including a record-setting Astranis deployment and Starlink missions signaling the year's end.
Musk Pivots SpaceX Focus to Moon Settlement Before Mars | KeepTrack X Report
Elon Musk shifts SpaceX's priority to lunar settlement before Mars colonization. Crew-12 launch delayed by weather to Feb 12. SpaceX partners with Hexagon Purus for manufacturing.
Space Brief 3 Nov 2025
Highlighting India's significant military satellite launch, real-time satellite tracking developments in Europe, SpaceX's new rideshare mission, and more space industry news.
X Report 6 Oct 2025
SpaceX gears up for its 11th Starship test flight, while Starlink expands connectivity through partnerships with T-Mobile, enhancing app functionality beyond cellular coverage.
X Report 13 Feb 2025
SpaceX and NASA swap Crew Dragon for Crew-10 mission; exciting 'space jellyfish' phenomena from recent launch.
Space Brief 22 Oct 2024
Today's Space Brief highlights SpaceX's 99th operational launch, China's calibration satellite launch, and Space Force's role in a commercial space age. Special spotlight on the satellite YAOGAN 1!